{"id":8857,"date":"2016-03-18T14:50:00","date_gmt":"2016-03-18T14:50:00","guid":{"rendered":"https:\/\/staging.asminternational.org\/hts-new\/results\/-\/journal_content\/56\/10192\/26218150\/NEWS\/"},"modified":"2023-02-07T04:49:23","modified_gmt":"2023-02-07T04:49:23","slug":"one-minute-mentor-effects-of-different-cooling-rates-on-corrosion-resistant-tool-steels","status":"publish","type":"post","link":"https:\/\/www.asminternational.org\/hts\/one-minute-mentor-effects-of-different-cooling-rates-on-corrosion-resistant-tool-steels\/","title":{"rendered":"One Minute Mentor: Effects of Different Cooling Rates on Corrosion-Resistant Tool Steels"},"content":{"rendered":"<p>\n\tThe graph shows the effects of different cooling rates on the toughness properties (un-notched samples) of AISI 420 and nitrogen-alloyed M333 tool steels.<\/p>\n<p>\n\tThe cooling parameter ?<sub>8\/5<\/sub>, which is the cooling time from 1470\u00b0 to 930\u00b0F in seconds, divided by 100, is used. Besides the general trend of falling toughness with rising cooling time, it is clearly evident that the nitrogen-alloyed steel grade M333 (420Mod), which has a lower carbon content, shows significantly higher toughness values. These can be further improved by lowering the austenitizing temperature. This behavior correlates well with the reduced tendency to form proeutectoid carbides at grain boundaries. A similar correlation can be found for the steel grades AISI 440B and the nitrogen-alloyed M340 (440Mod).<\/p>\n<p>\n\tVolume 4D, Heat Treating of Irons and Steels&nbsp;? Tool Steels ?&nbsp;Heat Treating of Mold Steels and Corrosion-Resistant Tool Steels&nbsp;?&nbsp;Recommended Heat Treating Practices<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The graph shows the effects of different cooling rates on the toughness properties (un-notched samples) of AISI 420 and nitrogen-alloyed M333 tool steels.<\/p>\n","protected":false},"author":63082,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[439,440,441,487,474,486,1],"tags":[],"class_list":["post-8857","post","type-post","status-publish","format-standard","hentry","category-general","category-news","category-news-articles","category-process-and-quality-control","category-steels","category-tempering","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>One Minute Mentor: Effects of Different Cooling Rates on Corrosion-Resistant Tool Steels - Heat Treating Society<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.asminternational.org\/hts\/results\/-\/journal_content\/56\/10192\/26218150\/NEWS\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"One Minute Mentor: Effects of Different Cooling Rates on Corrosion-Resistant Tool Steels - Heat Treating Society\" \/>\n<meta property=\"og:description\" content=\"The graph shows the effects of different cooling rates on the toughness properties (un-notched samples) of AISI 420 and nitrogen-alloyed M333 tool steels.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.asminternational.org\/hts\/results\/-\/journal_content\/56\/10192\/26218150\/NEWS\/\" \/>\n<meta property=\"og:site_name\" content=\"Heat Treating Society\" \/>\n<meta property=\"article:published_time\" content=\"2016-03-18T14:50:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-02-07T04:49:23+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/hts\\\/results\\\/-\\\/journal_content\\\/56\\\/10192\\\/26218150\\\/NEWS\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/hts\\\/results\\\/-\\\/journal_content\\\/56\\\/10192\\\/26218150\\\/NEWS\\\/\"},\"author\":{\"name\":\"\",\"@id\":\"\"},\"headline\":\"One Minute Mentor: Effects of Different Cooling Rates on Corrosion-Resistant Tool Steels\",\"datePublished\":\"2016-03-18T14:50:00+00:00\",\"dateModified\":\"2023-02-07T04:49:23+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/hts\\\/results\\\/-\\\/journal_content\\\/56\\\/10192\\\/26218150\\\/NEWS\\\/\"},\"wordCount\":153,\"publisher\":{\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/hts\\\/#organization\"},\"articleSection\":[\"general\",\"news\",\"News Articles\",\"Process and Quality Control\",\"Steels\",\"Tempering\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.asminternational.org\\\/hts\\\/results\\\/-\\\/journal_content\\\/56\\\/10192\\\/26218150\\\/NEWS\\\/\",\"url\":\"https:\\\/\\\/www.asminternational.org\\\/hts\\\/results\\\/-\\\/journal_content\\\/56\\\/10192\\\/26218150\\\/NEWS\\\/\",\"name\":\"One Minute Mentor: Effects of Different Cooling Rates on Corrosion-Resistant Tool Steels - 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