{"id":12849,"date":"2026-02-04T22:11:29","date_gmt":"2026-02-04T14:11:29","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=12849"},"modified":"2026-10-21T10:55:33","modified_gmt":"2026-10-21T02:55:33","slug":"quench-cracking-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/quench-cracking-tool-steel\/","title":{"rendered":"\uacf5\uad6c\uac15\uc758 \ub2f4\uae08\uc9c8 \uade0\uc5f4: \uc6d0\uc778, \uc608\ubc29 \ubc0f \ud574\uacb0\ucc45"},"content":{"rendered":"<h1 id=\"h-quench-cracking-in-tool-steel-mechanisms-identification-and-prevention\" class=\"wp-block-heading has-large-font-size\">\uacf5\uad6c\uac15\uc758 \ub2f4\uae08\uc9c8 \uade0\uc5f4: \ubc1c\uc0dd \uae30\uc804, \uc2dd\ubcc4 \ubc0f \uc608\ubc29<\/h1>\n\n\n\n<h2 id=\"h-what-is-quench-cracking\" class=\"wp-block-heading\">\ub2f4\uae08\uc9c8 \uade0\uc5f4\uc774\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2f4\uae08\uc9c8 \uade0\uc5f4\uc740 \ub2f4\uae08\uc9c8 \uc911 \ub610\ub294 \uc9c1\ud6c4\uc5d0 \ubc1c\uc0dd\ud558\ub294 \ud30c\uc190\uc785\ub2c8\ub2e4. \uade0\uc5f4\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ud45c\uba74\uc5d0\uc11c \uc2dc\uc791\ud558\uc5ec \uc138\ub85c \ubc29\ud5a5 \ub610\ub294 \ubc29\uc0ac \ubc29\ud5a5\uc73c\ub85c \uc548\ucabd\uc73c\ub85c \uc804\ud30c\ub429\ub2c8\ub2e4. \uc77c\ub2e8 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\uba74 \ubd80\ud488\uc740 \ubcf5\uad6c\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-why-quench-cracking-occurs\" class=\"wp-block-heading\">\ub2f4\uae08\uc9c8 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\ub294 \uc774\uc720<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2f4\uae08\uc9c8 \uade0\uc5f4\uc740 <a href=\"https:\/\/aobosteel.com\/ko\/h13-quenching-cooling-rates\/\">\ub0b4\ubd80 <\/a>\ub0c9\uac01 \ubc0f \ubcc0\ud0dc \uc911\uc5d0 \ubc1c\uc0dd\ud558\ub294 \uc751\ub825\uc774 \uacbd\ud654\ub41c \uc870\uc9c1\uc758 \uc778\uc7a5\uac15\ub3c4\ub97c \ucd08\uacfc\ud569\ub2c8\ub2e4. \uadf8 \uacb0\uacfc \ubc1c\uc0dd\ud558\ub294 \ud30c\ub2e8\uc740 \ub2e4\ub978 \ud30c\ub2e8\uacfc \ub3d9\uc77c\ud55c \ubc29\uc2dd\uc73c\ub85c \ud310\ub3c5\ub418\uba70, \uade0\uc5f4\uc744 \ub2f4\uae08\uc9c8 \uc2dc\uc810\uc73c\ub85c \ud2b9\uc815\ud560 \uc218 \uc788\ub294 \ud754\uc801\uc740 \ub2e4\uc74c\uc5d0 \uc81c\uc2dc\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4: <a href=\"https:\/\/aobosteel.com\/ko\/fracture-surface-features-chart\/\">\ud30c\ub2e8\uba74 \ud2b9\uc9d5 \ucc28\ud2b8<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2f4\uae08\uc9c8 \uc911\uc5d0\ub294 \ud45c\uba74\uc774 \uba3c\uc800 \ub0c9\uac01\ub418\uc5b4 \uc218\ucd95\ud558\ub294 \ubc18\uba74 \uc2ec\ubd80\ub294 \ub728\uac70\uc6b4 \uc0c1\ud0dc\ub85c \ub0a8\uc544, \ub2e8\uba74 \uc804\uccb4\uc5d0 \uac78\uccd0 \uae30\uacc4\uc801 \uc751\ub825\uc744 \uc720\ubc1c\ud558\ub294 \uc628\ub3c4 \uad6c\ubc30\uac00 \ud615\uc131\ub429\ub2c8\ub2e4. \ub3d9\uc2dc\uc5d0 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc5d0\uc11c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub85c\uc758 \ubcc0\ud0dc\uac00 \uccb4\uc801 \ud33d\ucc3d\uc744 \uc77c\uc73c\ud0b5\ub2c8\ub2e4. \ud45c\uba74\uc774 \uba3c\uc800 \ubcc0\ud0dc\ud558\uae30 \ub54c\ubb38\uc5d0 \ud45c\uba74\uc740 \ud33d\ucc3d\ud558\ub294 \ubc18\uba74 \uc2ec\ubd80\ub294 \uc5f0\uc131\uc774 \uc720\uc9c0\ub418\uc5b4 \ubcc0\ud615\uc744 \uc218\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub0c9\uac01\uc774 \uacc4\uc18d\ub418\uba74 \uc2ec\ubd80\uac00 \ubcc0\ud0dc \uc628\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\uc5ec \ud33d\ucc3d\ud558\uae30 \uc2dc\uc791\ud569\ub2c8\ub2e4. \uc774 \ub2e8\uacc4\uc5d0\uc11c \ud45c\uba74\uc740 \uc774\ubbf8 \uacbd\uc9c8 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub85c \ubcc0\ud0dc\ub418\uc5b4 \ub354 \uc774\uc0c1 \uc18c\uc131 \ubcc0\ud615\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \ud33d\ucc3d\ud558\ub294 \uc2ec\ubd80\ub294 \ud45c\uba74\uc5d0 \uc778\uc7a5 \uc751\ub825\uc744 \uac00\ud569\ub2c8\ub2e4. \uc774 \uc751\ub825\uc774 \uc7ac\ub8cc\uc758 \uad6d\ubd80 \uac15\ub3c4\ub97c \ucd08\uacfc\ud558\uba74 \ud45c\uba74\uc5d0\uc11c \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\uc5ec \ub0b4\ubd80\ub85c \uc804\ud30c\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ud6c4 \uade0\uc5f4\uc774 \uc5b4\ub5bb\uac8c \uc9c4\ud589\ub418\ub294\uc9c0\ub294 \ub2f4\uae08\uc9c8 \uac15\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c0\uba70, \uadf8 \ud328\ud134\ub3c4 \uc774\uc5d0 \ub530\ub77c \uccb4\uacc4\uc801\uc73c\ub85c \ubcc0\ud654\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Quench-Cracking-totten-fig-10-26-quench-cracking-pattern-vs-quench-severity.jpg\" alt=\"Quench cracking pattern in 60SC7 steel cylinders 4 to 35 mm diameter quenched in water, showing the crack pattern with decreasing cooling rates and increasing quench severity\"\/><figcaption class=\"wp-element-caption\">\uadf8\ub9bc 10.26. \ubb3c\uc5d0\uc11c \ub2f4\uae08\uc9c8\ud55c 4~35 mm \uc9c1\uacbd 60SC7 \uac15 \uc6d0\ud1b5\uc758 \ub2f4\uae08\uc9c8 \uade0\uc5f4 \ud328\ud134\uc73c\ub85c, \ub0c9\uac01 \uc18d\ub3c4 \uac10\uc18c\uc640 \ub2f4\uae08\uc9c8 \uac15\ub3c4 \uc99d\uac00\uc5d0 \ub300\ud574 \ub098\ud0c0\ub0b8 \uac83\uc785\ub2c8\ub2e4. \ud328\ud134\uc740 \uac00\uc7a5 \uc791\uace0 \uac00\uc7a5 \uac15\ud558\uac8c \ub2f4\uae08\uc9c8\ub41c \ub2e8\uba74\uc758 \ub2f4\uae08\uc9c8 \ub2e8\ubd80\uc5d0 \uc0dd\uae30\ub294 \ub2e8\uc77c \uc6d0\uc8fc \ubc29\ud5a5 \uade0\uc5f4\uc5d0\uc11c \uc2dc\uc791\ud558\uc5ec \uc885\ubc29\ud5a5 \uade0\uc5f4\uc744 \uac70\uccd0, \uc9c1\uacbd\uc774 \ucee4\uc9d0\uc5d0 \ub530\ub77c \ub2e4\ub974\uac8c \uac08\ub77c\uc9c0\uac70\ub098 \uc804\ud600 \uade0\uc5f4\uc774 \uc0dd\uae30\uc9c0 \uc54a\ub294 \ub2e8\uba74\uc73c\ub85c \uc774\uc5b4\uc9d1\ub2c8\ub2e4. \uc774 \ub3c4\ud574\uc758 \ucd9c\ucc98\ub294 Beck\uc758 \uc5f0\uad6c\uc774\uba70 \uc7a5\uc5d0\uc11c \ud06c\ub808\ub527\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. 60SC7\uc740 \uacf5\uad6c\uac15\uc774 \uc544\ub2cc \uc2a4\ud504\ub9c1 \uac15\uc774\uba70, \ud328\ud134\uc740 \uacf5\uad6c\uac15 \uc6d0\ud1b5\uc5d0\uc11c \ubcf4\uc774\ub294 \uac83\uacfc \ub3d9\uc77c\ud569\ub2c8\ub2e4. \ucd9c\ucc98: M. Narazaki \ubc0f G.E. Totten, Distortion of Heat-Treated Components, in Steel Heat Treatment: Metallurgy and Technologies (G.E. Totten, ed.), CRC Press, 2006, Fig. 10.26.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-hardening-tempering-chart\/\">\u2192 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac\uc5d0\uc11c \ub2f4\uae08\uc9c8\uc774 \uc5b4\ub5bb\uac8c \uc791\uc6a9\ud558\ub294\uc9c0 \uc54c\uc544\ubcf4\uc138\uc694<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5b4\ub290 \ud6a8\uacfc\uac00 \uc6b0\uc138\ud55c\uc9c0\ub294 \ub2e8\uba74\uacfc \uac15\uc885\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c0\uba70, \uc138 \uac00\uc9c0 \ud45c\uc900 \uacb0\uacfc\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc544\ub798 \ud328\ub110\uc740 \uacbd\ud654\ub41c \uc6d0\ud1b5\uc774 \ub098\ud0c0\ub0bc \uc218 \uc788\ub294 \uc138 \uac00\uc9c0 \uc794\ub958 \uc751\ub825 \ud328\ud134\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Tool-Steel-Quench-Cracking-totten-fig-6-42-hardening-residual-stress-types.jpg\" alt=\"The three basic types of hardening residual stress distribution, shrinking type, transition type and transformation type, with the cylinder diameters at which each occurs\"\/><figcaption class=\"wp-element-caption\">\uadf8\ub9bc 6.42. \uc6d0\ud1b5 \ub2e8\uba74\uc5d0 \uac78\uce5c \uacbd\ud654 \uc794\ub958 \uc751\ub825 \ubd84\ud3ec\uc758 \uc138 \uac00\uc9c0 \uae30\ubcf8 \uc720\ud615: \uc218\ucd95\ud615, \ucc9c\uc774\ud615, \ubcc0\ud0dc\ud615\uc73c\ub85c, \uac01 \uc720\ud615\uc5d0 \ub300\ud574 \ub2e8\uba74\uc744 \ud1b5\uacfc\ud558\ub294 \uc751\ub825 \ud328\ud134\uc774 \ub3c4\uc2dc\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc5b4\ub290 \uc720\ud615\uc774 \ub098\ud0c0\ub098\ub294\uc9c0\ub294 \ubcc0\ud0dc\uac00 \uc5f4\uc218\ucd95\ubcf4\ub2e4 \uc5bc\ub9c8\ub098 \ub4a4\ucc98\uc9c0\ub294\uc9c0\uc5d0 \uc758\ud574 \uacb0\uc815\ub418\ubbc0\ub85c, \ub450\uaebc\uc6b4 \ub2e8\uba74\uc758 \uc644\uc804 \uacbd\ud654 \uac15\uc885\uc740 \ud45c\uba74\uc5d0 \uc778\uc7a5\uc774 \uc791\uc6a9\ud558\ub294 \ubcc0\ud0dc\ud615\uc5d0 \ud574\ub2f9\ud558\uba70, \uc774\ub294 \uade0\uc5f4\uc774 \uc2dc\uc791\ub418\ub294 \uc0c1\ud0dc\uc785\ub2c8\ub2e4. \uc791\uc740 \ud45c\ub294 0.45% C \uac15 Ck45\uc5d0\uc11c \uc218\ub0c9 \ubc0f \uc720\ub0c9 \uc2dc \uac01 \uc720\ud615\uc774 \ubc1c\uc0dd\ud558\ub294 \uc6d0\ud1b5 \uc9c1\uacbd\uc744 \uc81c\uc2dc\ud569\ub2c8\ub2e4. \ucd9c\ucc98: B. Li\u0161\u010di\u0107, Steel Heat Treatment, in Steel Heat Treatment: Metallurgy and Technologies (G.E. Totten, ed.), CRC Press, 2006, Fig. 6.42.<\/figcaption><\/figure>\n\n\n\n<h2 id=\"h-factors-influencing-cracking-risk\" class=\"wp-block-heading\">\uade0\uc5f4 \uc704\ud5d8\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc694\uc778<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uade0\uc5f4 \uc704\ud5d8\uc740 \ub2f4\uae08\uc9c8 \uc911 \uc751\ub825\uc774 \uc5b4\ub5bb\uac8c \ubc1c\uc0dd\ud558\uace0 \uc9d1\uc911\ub418\ub294\uc9c0\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc7ac\ub8cc \uc870\uc131\uc740 \ubcc0\ud0dc \uac70\ub3d9\uc5d0 \uc9c1\uc811 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \ud0c4\uc18c \ud568\ub7c9\uc774 \ub192\uc744\uc218\ub85d \uccb4\uc801 \ud33d\ucc3d\uc774 \ucee4\uc9c0\uace0 \ubcc0\ud0dc \uc628\ub3c4\uac00 \ub0ae\uc544\uc838 \uc751\ub825 \uc644\ud654\uac00 \uac10\uc18c\ud558\uace0 \uade0\uc5f4 \ubbfc\uac10\uc131\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud615\uc0c1\uc740 \uc5f4 \ucd94\ucd9c\uc744 \uc81c\uc5b4\ud558\uace0 <a href=\"https:\/\/aobosteel.com\/ko\/residual-stress-measurement-tooling\/\">\uc751\ub825 \ubd84\ud3ec<\/a>. \ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac, \ud0a4\ud648, \ub2e8\uba74 \ub450\uaed8\uc758 \ud070 \ucc28\uc774\ub294 \ubd88\uade0\uc77c\ud55c \ub0c9\uac01\uc744 \uc77c\uc73c\ucf1c \ud2b9\uc815 \uc704\uce58\uc5d0 \uc751\ub825\uc744 \uc9d1\uc911\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uba74 \uc0c1\ud0dc\ub294 \uade0\uc5f4\uc774 \uc2dc\uc791\ub418\ub294 \uc704\uce58\ub97c \uacb0\uc815\ud569\ub2c8\ub2e4. \uc774 \ud45c\uba74\uc740 \ub354 \uae34 \uc6d0\uc778 \uc0ac\uc2ac\uc758 \ud55c \uace0\ub9ac\uc774\uba70, \uc124\uacc4\uc5d0\uc11c \uc0ac\uc6a9\uc5d0 \uc774\ub974\ub294 \uc804\uccb4 \uc0ac\uc2ac\uc740 \ub2e4\uc74c\uc5d0\uc11c \ub2e4\ub8e8\uc5b4\uc9d1\ub2c8\ub2e4: <a href=\"https:\/\/aobosteel.com\/ko\/tool-and-die-failure-analysis\/\">\uacf5\uad6c \ubc0f \uae08\ud615 \uace0\uc7a5 \ubd84\uc11d \ud398\uc774\uc9c0<\/a>. \uac00\uacf5 \ud754\uc801, \uc2a4\ud0ec\ud551 \uacb0\ud568, \uc57c\uae08\ud559\uc801 \ubd88\uc5f0\uc18d\uc131\uc740 \uc751\ub825 \uc9d1\uc911\uc6d0\uc73c\ub85c \uc791\uc6a9\ud569\ub2c8\ub2e4. <a href=\"https:\/\/aobosteel.com\/ko\/decarburization-and-stock-removal-tool-steel\/\">\ud45c\uba74 \ud0c8\ud0c4<\/a> \ud45c\uba74\uacfc \uc911\uc2ec\ubd80 \uc0ac\uc774\uc758 \ubcc0\ud0dc \uc2dc\uae30\ub97c \ucd94\uac00\ub85c \ubcc0\ud654\uc2dc\ucf1c \ub0c9\uac01 \uc911 \ubd88\uc77c\uce58\ub97c \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ucc98\ub9ac\ub294 \uc870\uc9c1 \uac15\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uacfc\ub3c4\ud55c \uc628\ub3c4\ub294 \uacb0\uc815\ub9bd\uc744 \uc870\ub300\ud654\ud558\uc5ec \ub2f4\uae08\uc9c8 \uc911 \uc785\uacc4 \ud30c\ub2e8\uc5d0 \ub300\ud55c \uc800\ud56d\uc744 \uac10\uc18c\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc704\ud5d8\uc744 \uac00\uc7a5 \ud06c\uac8c \uc88c\uc6b0\ud558\ub294 \ub450 \uac00\uc9c0 \uc7ac\ub8cc \uc218\uce58\ub294 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uc2dc\uc791 \uc628\ub3c4\uc640 \ud0c4\uc18c\ub2f9\ub7c9\uc774\uba70, \uadf8 \uad00\uacc4\ub294 \uc120\ud615\uc774 \uc544\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Quench-Cracking-totten-fig-10-16-ms-carbon-equivalent-quench-cracking.jpg\" alt=\"Quench cracking of selected steels against the martensite start temperature and against carbon equivalent, with nickel-chromium-molybdenum and carbon-manganese steels marked\"\/><figcaption class=\"wp-element-caption\">\uadf8\ub9bc 10.16. \uc5ec\ub7ec \uac15\uc885\uc5d0 \ub300\ud574 \uc0c1\ub2e8 \ud328\ub110\uc740 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uc2dc\uc791 \uc628\ub3c4\uc5d0 \ub300\ud55c \ub2f4\uae08\uc9c8 \uade0\uc5f4 \ube44\uc728\uc744, \ud558\ub2e8 \ud328\ub110\uc740 \ud0c4\uc18c\ub2f9\ub7c9\uc5d0 \ub300\ud55c \ub2f4\uae08\uc9c8 \uade0\uc5f4 \ube44\uc728\uc744 \ub098\ud0c0\ub0b4\uba70, \ub2c8\ucf08-\ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374 \uac15, \ud0c4\uc18c-\ub9dd\uac04 \uac15 \ubc0f \uc644\uc804\ud55c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uac00 \ub418\uc9c0 \uc54a\uc740 \uac15\uc885\uc740 \ubcc4\ub3c4\ub85c \ud45c\uc2dc\ud558\uc600\ub2e4. \uade0\uc5f4\uc740 M<sub>s<\/sub> \uac00\uc7a5 \ub0ae\uc740 \uac12\uc774 \uc544\ub2c8\ub77c, \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\ub824\uba74 \ubcc0\ud0dc\uac00 \uc751\ub825\uc744 \ucd95\uc801\ud560 \ub9cc\ud07c \ucda9\ubd84\ud788 \ub2a6\uac8c \uc77c\uc5b4\ub098\uc57c \ud558\uace0 \ucf54\uc5b4\uac00 \uc774\ub97c \uc804\ub2ec\ud560 \ub9cc\ud07c \ucda9\ubd84\ud788 \uac15\ud558\uac8c \uc720\uc9c0\ub418\uc5b4\uc57c \ud558\uae30 \ub54c\ubb38\uc774\uba70, \uc644\uc804\ud55c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uac15\uc885\uc740 \uade0\uc5f4\uc774 \uac00\uc7a5 \uc801\ub2e4. \uc774 \uadf8\ub9bc\uc740 \ucd9c\ucc98\uc5d0\uc11c ASM Handbook, Volume 4\ub85c \ud45c\uae30\ub418\uc5c8\ub2e4. \ucd9c\ucc98: M. Narazaki and G.E. Totten, Distortion of Heat-Treated Components, in Steel Heat Treatment: Metallurgy and Technologies (G.E. Totten, ed.), CRC Press, 2006, Fig. 10.16.<\/figcaption><\/figure>\n\n\n\n<h2 id=\"h-identification-in-practice\" class=\"wp-block-heading\">\uc2e4\uc81c \uc2dd\ubcc4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2f4\uae08\uc9c8 \uade0\uc5f4\uc740 \ubc1c\uc0dd \uc6d0\uc778, \ud615\ud0dc \ubc0f \uc57c\uae08\ud559\uc801 \ud2b9\uc9d5\uc73c\ub85c \uc2dd\ubcc4\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uade0\uc5f4\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ud45c\uba74\uc5d0\uc11c \uc2dc\uc791\ud558\uc5ec \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uacb0\uc815\ub9bd\uacc4\ub97c \ub530\ub77c \uc9c4\ud589\ud558\uba70, \uadf8 \uacb0\uacfc \uc785\uacc4 \ud30c\uad34 \uacbd\ub85c\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \uade0\uc5f4 \ubc1c\uc0dd \ud6c4 \ud15c\ud37c\ub9c1\uc774 \uc774\ub8e8\uc5b4\uc9c0\uba74 \uade0\uc5f4 \ub0b4\ubd80\uc758 \uc0b0\ud654\ub85c \uc778\ud574 \ud15c\ud37c\ub9c1 \uc0c9\uc774\ub098 \uc2a4\ucf00\uc77c\uc774 \uc0dd\uc131\ub418\ub294\ub370, \uc774\ub294 \uade0\uc5f4\uc774 \ud15c\ud37c\ub9c1 \uc804\uc5d0 \ubc1c\uc0dd\ud588\uc74c\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \ubc18\uba74, \uc5f4\ucc98\ub9ac \ud6c4\uc5d0 \ubc1c\uc0dd\ud55c \uade0\uc5f4\uc740 \ub0b4\ubd80 \uc0b0\ud654\ub97c \ubcf4\uc774\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc8fc\ubcc0 \ubbf8\uc138\uc870\uc9c1\uc5d0\ub294 \ud0c8\ud0c4\uc774 \ub098\ud0c0\ub098\uc9c0 \uc54a\ub294\ub370, \uc774\ub294 \uade0\uc5f4\uc774 \uace0\uc628 \ub2e8\uacc4 \uc774\ud6c4\uc5d0 \ubc1c\uc0dd\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-prevention-and-mitigation\" class=\"wp-block-heading\">\uc608\ubc29 \ubc0f \uc644\ud654<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\ubc29\uc740 \uc2a4\ud2b8\ub808\uc2a4 \uc9d1\uc911\uc744 \uc904\uc774\uace0 \ud574\ub2f9 \uc139\uc158 \uc804\uccb4\uc5d0 \uac78\uccd0 \ubcc0\ud654\uc758 \uc870\ud654\ub97c \uc774\ub8e8\ub294 \ub370 \uc911\uc810\uc744 \ub461\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uade0\uc77c\ud55c \ub0c9\uac01\uc744 \ucd09\uc9c4\ud558\ub3c4\ub85d \ub0a0\uce74\ub85c\uc6b4 \uc804\uc774\uc640 \ud070 \ub450\uaed8 \ucc28\uc774\ub97c \ud53c\ud558\ub3c4\ub85d \ud615\uc0c1\uc744 \uc124\uacc4\ud569\ub2c8\ub2e4. \ud45c\uba74 \uc900\ube44\ub294 \uac00\uacf5 \uacb0\ud568\uc744 \uc81c\uac70\ud558\uace0 \uac00\uc5f4 \uc911 \ud0c8\ud0c4\uc744 \ubc29\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub0c9\uac01 \uc18d\ub3c4\ub97c \uc81c\uc5b4\ud558\uace0 \uc628\ub3c4 \uad6c\ubc30\ub97c \uc904\uc774\ub3c4\ub85d \ub2f4\uae08\uc9c8 \ubc29\ubc95\uc744 \uc120\ud0dd\ud569\ub2c8\ub2e4. \ub9c8\ub974\ud15c\ud37c\ub9c1\uacfc \uac19\uc740 \uacf5\uc815\uc740 \ubcc0\ud0dc \uc804\uc5d0 \uc628\ub3c4\ub97c \uade0\uc77c\ud654\ud558\uc5ec \ub0b4\ubd80 \uc751\ub825\uc744 \ud06c\uac8c \uac10\uc18c\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud15c\ud37c\ub9c1\uc744 \uc2e4\uc2dc\ud569\ub2c8\ub2e4 <a href=\"https:\/\/aobosteel.com\/ko\/quench-to-temper-delay-tool-steel\/\">\ub2f4\uae08\uc9c8 \uc9c1\ud6c4<\/a>, \ubd80\ud488\uc774 \uc544\uc9c1 \ub530\ub73b\ud560 \ub54c, <a href=\"https:\/\/aobosteel.com\/ko\/xrd-residual-stress-measurement-tool-steel\/\">\uc794\ub958 \uc751\ub825\uc744 \uc644\ud654\ud558\uace0 \uc9c0\uc5f0 \uade0\uc5f4\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574<\/a>.<\/p>\n\n\n\n<h2 id=\"h-material-selection-and-hardenability\" class=\"wp-block-heading\">\uc7ac\ub8cc \uc120\ud0dd \ubc0f \uacbd\ud654\uc131<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc7ac\ub8cc \uc120\ud0dd\uc740 \ub2f4\uae08\uc9c8 \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uc751\ub825 \uc218\uc900\uc744 \uc81c\uc5b4\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uacbd\ud654\ub2a5\uc774 \ub0ae\uc740 \uac15 <a href=\"https:\/\/aobosteel.com\/ko\/quenching-chart-water-oil-air-hardening\/\">\uc740 \uc644\uc804\ud55c \uacbd\ub3c4\ub97c \uc5bb\uae30 \uc704\ud574 \uae09\uc18d \ub0c9\uac01\uc774 \ud544\uc694\ud558\uba70<\/a>, \uc774\ub294 \uae09\uaca9\ud55c \uc5f4 \uad6c\ubc30\uc640 \ub192\uc740 \ub0b4\ubd80 \uc751\ub825\uc744 \ubc1c\uc0dd\uc2dc\ud0b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uac15\uc740 \ub2e8\uc21c\ud55c \ud615\uc0c1\uc5d0\ub9cc \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub0c9\uac01 \uc18d\ub3c4 \uc790\uccb4\uc5d0\ub3c4 \uc704\ud5d8\ud55c \uad6c\uac04\uc774 \uc788\uc73c\uba70, \uc774\ub294 \uce21\uc815 \uac00\ub2a5\ud558\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Quench-Cracking-totten-fig-9-47-crack-formation-probability-vs-cooling-rate.jpg\" alt=\"Probability of crack formation against the cooling rate inside the martensite formation range, for a 6 mm diameter 41Cr4 steel cylinder\"\/><figcaption class=\"wp-element-caption\">\uadf8\ub9bc 9.47. 6 mm \uc9c1\uacbd 41Cr4 \uac15 \uc2e4\ub9b0\ub354\uc5d0 \ub300\ud574 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ud615\uc131 \ubc94\uc704 \ub0b4 \ub0c9\uac01 \uc18d\ub3c4\uc5d0 \ub300\ud55c \uade0\uc5f4 \ud615\uc131 \ud655\ub960. \ud655\ub960\uc740 \ub290\ub9b0 \ucabd\uc5d0\uc11c \ub0ae\uace0, 350 K\/s \ubd80\uadfc\uc5d0\uc11c \uc57d 100 %\uc758 \ucd5c\ub300\uce58\ub85c \uc0c1\uc2b9\ud55c \ub4a4 \ub0c9\uac01 \uc18d\ub3c4\uac00 \uacc4\uc18d \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \ub2e4\uc2dc \uac10\uc18c\ud558\ub294\ub370, \uc774\ub294 \ud45c\uba74\uacfc \ucf54\uc5b4\ub97c \uac70\uc758 \ub3d9\uc2dc\uc5d0 \ubcc0\ud0dc\uc2dc\ud0ac \ub9cc\ud07c \ube60\ub978 \uc18d\ub3c4\uac00 \ubd88\uc77c\uce58\ub97c \ub2e4\uc2dc \uc81c\uac70\ud558\uae30 \ub54c\ubb38\uc774\ub2e4. \uc774\uac83\uc774 \ub2f4\uae08\uc9c8\uc774 \ub9e4\uccb4\uc640 \ub2e8\uba74 \uce58\uc218\ub97c \ud568\uaed8 \uc9c0\uc815\ud558\ub294 \uc774\uc720\uc774\ub2e4: \uc704\ud5d8\uc740 \ub2e8\uc77c \uac12\uc774 \uc544\ub2c8\ub77c \ub0c9\uac01 \uc18d\ub3c4\uc758 \uad6c\uac04\uc5d0 \uc874\uc7ac\ud55c\ub2e4. 41Cr4\ub294 \uc800\ud569\uae08 \ud06c\ub86c \uac15\uc885\uc73c\ub85c \uacf5\uad6c\uac15\uc774 \uc544\ub2c8\uba70, \uc774 \uad6c\uac04\uc740 \uacf5\uad6c\uac15\uc885\uc774 \ud1b5\uacfc\ud558\ub294 \uac83\uacfc \ub3d9\uc77c\ud55c \uad6c\uac04\uc774\ub2e4. \ucd9c\ucc98: H.M. Tensi, A. Stich and G.E. Totten, Quenching and Quenching Technology, in Steel Heat Treatment: Metallurgy and Technologies (G.E. Totten, ed.), CRC Press, 2006, Fig. 9.47.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uacbd\ud654\ub2a5\uc774 \ub192\uc740 \uacf5\uad6c\uac15\uc740 \ub354 \ub290\ub9b0 \ub0c9\uac01 \uc18d\ub3c4\uc5d0\uc11c \ubcc0\ud0dc\ub418\uc5b4 \uacf5\ub7ad \ub610\ub294 \uc644\ub9cc\ud55c \ub2f4\uae08\uc9c8\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4. \uc774\ub294 \uc628\ub3c4 \uad6c\ubc30\uc640 \ub0b4\ubd80 \uc751\ub825\uc744 \uac10\uc18c\uc2dc\ucf1c \ubcf5\uc7a1\ud55c \ud615\uc0c1\uacfc \ud070 \ub2e8\uba74\uc5d0 \ub354 \uc801\ud569\ud558\uac8c \ud569\ub2c8\ub2e4. \uc8fc\uc5b4\uc9c4 \ub2f4\uae08\uc9c8\uc5d0\uc11c \uac01 \uac15\uc885\uc774 \uc644\uc804 \uacbd\ud654\ub418\ub294 \ub2e8\uba74\uc740 \ub2e4\uc74c\uc5d0 \uc81c\uc2dc\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4: <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-hardenability-chart\/\">\uacf5\uad6c\uac15 \uacbd\ud654\ub2a5 \ucc28\ud2b8<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Quench Cracking in Tool Steel: Mechanisms, Identification, and Prevention What is Quench Cracking? Quench cracking is a failure that occurs during or shortly after quenching. Cracks typically initiate at the surface and propagate inward along longitudinal or radial paths. Once formed, the component cannot be recovered. Why Quench Cracking Occurs Quench cracking occurs when internal [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-12849","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO 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Quench cracking is a failure that occurs during or shortly after quenching. Cracks typically initiate at the surface and propagate inward along longitudinal or radial paths. Once formed, the component cannot be recovered. Why Quench Cracking Occurs Quench cracking occurs when internal&hellip;","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"Quench Cracking in Tool Steel: Mechanisms, Identification, and Prevention What is Quench Cracking? Quench cracking is a failure that occurs during or shortly after quenching. Cracks typically initiate at the surface and propagate inward along longitudinal or radial paths. Once formed, the component cannot be recovered. 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