{"id":119401,"date":"2023-01-21T03:47:52","date_gmt":"2023-01-21T02:47:52","guid":{"rendered":"https:\/\/material-properties.org\/o-que-e-endurecimento-de-metais-definicao\/"},"modified":"2023-02-07T09:00:12","modified_gmt":"2023-02-07T08:00:12","slug":"o-que-e-endurecimento-de-metais-definicao","status":"publish","type":"post","link":"https:\/\/material-properties.org\/pt-br\/o-que-e-endurecimento-de-metais-definicao\/","title":{"rendered":"O que \u00e9 Endurecimento de Metais &#8211; Defini\u00e7\u00e3o"},"content":{"rendered":"<p><span><div class=\"su-quote su-quote-style-default\"><div class=\"su-quote-inner su-u-clearfix su-u-trim\"> Endurecimento de metais \u00e9 um processo metal\u00fargico usado para aumentar a dureza de um metal.\u00a0A dureza de um metal \u00e9 diretamente proporcional \u00e0 tens\u00e3o de escoamento uniaxial no local da deforma\u00e7\u00e3o imposta.<\/div><\/div><\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><strong><span>Resist\u00eancia e dureza<\/span><\/strong><span>\u00a0s\u00e3o propriedades materiais diferentes.\u00a0<\/span><a href=\"https:\/\/material-properties.org\/what-is-strength-definition\/\"><strong><em><span>A resist\u00eancia<\/span><\/em><\/strong><\/a><span>\u00a0\u00e9 a capacidade de um material resistir \u00e0 deforma\u00e7\u00e3o, enquanto a\u00a0<\/span><a href=\"https:\/\/material-properties.org\/what-is-hardness-definition\/\"><strong><span>dureza<\/span><\/strong><\/a><span>\u00a0\u00e9 a capacidade de resistir a indenta\u00e7\u00f5es e arranh\u00f5es na superf\u00edcie. Essas propriedades n\u00e3o s\u00e3o intercambi\u00e1veis, mas suas melhorias s\u00e3o baseadas em procedimentos semelhantes, mas n\u00e3o nos mesmos.<\/span><\/p>\n<p><span>A alta resist\u00eancia dos materiais \u00e9 \u00fatil em muitas aplica\u00e7\u00f5es.\u00a0Uma aplica\u00e7\u00e3o prim\u00e1ria de materiais refor\u00e7ados \u00e9 para a constru\u00e7\u00e3o.\u00a0Para ter edif\u00edcios e pontes mais fortes, deve-se ter uma estrutura forte que possa suportar altas cargas de tra\u00e7\u00e3o ou compress\u00e3o e resistir \u00e0 deforma\u00e7\u00e3o pl\u00e1stica.\u00a0As ferramentas tamb\u00e9m s\u00e3o baseadas em materiais de alta resist\u00eancia (por exemplo, <\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/steels-properties-of-steels\/tool-steel\/\"><span>a\u00e7o para ferramentas<\/span><\/a><span>\u00a0ou\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/alloys-composition-properties-of-metal-alloys\/copper-alloys\/bronze\/beryllium-bronze\/\"><span>cobre ber\u00edlio<\/span><\/a><span>).<\/span><\/p>\n<p><span>Alta dureza de materiais \u00e9 necess\u00e1ria para outras aplica\u00e7\u00f5es.\u00a0Uma aplica\u00e7\u00e3o prim\u00e1ria de materiais endurecidos \u00e9 para ferramentas de corte de m\u00e1quinas (brocas, machos, ferramentas de torno), que precisam ser muito mais duras do que o material em que est\u00e3o operando para serem eficazes.\u00a0Essas ferramentas de corte geralmente s\u00e3o feitas de\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/steels-properties-of-steels\/high-speed-steel-hss\/\"><span>a\u00e7o r\u00e1pido<\/span><\/a><span>.\u00a0As l\u00e2minas de faca tamb\u00e9m usam a\u00e7os de alta dureza para manter uma borda afiada da l\u00e2mina.\u00a0Os rolamentos devem ter uma superf\u00edcie muito dura que resista a tens\u00f5es cont\u00ednuas.<\/span><\/p>\n<h2><span>Endurecimento de Metais<\/span><\/h2>\n<p><span>Na ci\u00eancia dos materiais, a\u00a0<\/span><strong><span>dureza<\/span><\/strong><span>\u00a0\u00e9 a capacidade de resistir \u00e0\u00a0<\/span><strong><span>indenta\u00e7\u00e3o da superf\u00edcie<\/span><\/strong><span> (<\/span><strong><span>deforma\u00e7\u00e3o pl\u00e1stica localizada<\/span><\/strong><span>) e\u00a0<\/span><strong><span>arranh\u00f5es<\/span><\/strong><span>.\u00a0<\/span><strong><span>A dureza<\/span><\/strong><span>\u00a0\u00e9 provavelmente a propriedade do material menos definida porque pode indicar resist\u00eancia a arranh\u00f5es, resist\u00eancia \u00e0 abras\u00e3o, resist\u00eancia \u00e0 indenta\u00e7\u00e3o ou mesmo resist\u00eancia \u00e0 modelagem ou deforma\u00e7\u00e3o pl\u00e1stica localizada.\u00a0A dureza \u00e9 importante do ponto de vista da engenharia porque a resist\u00eancia ao desgaste por fric\u00e7\u00e3o ou eros\u00e3o por vapor, \u00f3leo e \u00e1gua geralmente aumenta com a dureza.<\/span><\/p>\n<p><span>Endurecimento \u00e9 um processo metal\u00fargico de usinagem usado para aumentar a dureza de um metal.\u00a0A dureza de um metal \u00e9 diretamente proporcional \u00e0 tens\u00e3o de escoamento uniaxial no local da deforma\u00e7\u00e3o imposta.\u00a0Para melhorar a dureza de um metal puro, podemos usar diferentes maneiras, que incluem:<\/span><\/p>\n<ul>\n<li><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/metalworking\/hall-petch-equation-hall-petch-method\/\"><strong><span>M\u00e9todo Hall-Petch<\/span><\/strong><\/a><\/li>\n<li><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/metalworking\/solid-solution-strengthening-alloying\/\"><strong><span>Endurecimento por Solu\u00e7\u00e3o S\u00f3lida<\/span><\/strong><\/a><span>\u00a0(liga)<\/span><\/li>\n<li><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/metalworking\/work-hardening-cold-working\/\"><strong><span>Endurecimento por Trabalho (Trabalho a Frio)<\/span><\/strong><\/a><\/li>\n<li><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/metalworking\/precipitation-hardening-age-hardening\/\"><strong><span>endurecimento por precipita\u00e7\u00e3o<\/span><\/strong><\/a><\/li>\n<li><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/metalworking\/transformation-hardening-martensitic-transformation-hardening\/\"><strong><span>Fortalecimento da transforma\u00e7\u00e3o<\/span><\/strong><\/a><\/li>\n<li><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/metalworking\/dispersion-hardening\/\"><strong><span>Endurecimento por Dispers\u00e3o<\/span><\/strong><\/a><\/li>\n<li><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/metalworking\/surface-hardening-case-hardening\/\"><strong><span>Endurecimento de Superf\u00edcie<\/span><\/strong><\/a><\/li>\n<\/ul>\n<h2><span>Dureza e resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/span><\/h2>\n<p><span>Al\u00e9m da correla\u00e7\u00e3o entre diferentes n\u00fameros de dureza, tamb\u00e9m existem algumas correla\u00e7\u00f5es poss\u00edveis com outras propriedades do material.\u00a0Por exemplo, para a\u00e7os carbono tratados termicamente e a\u00e7os de m\u00e9dia liga, outra convers\u00e3o conveniente \u00e9 a\u00a0<\/span><strong><span>dureza Brinell para\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/strength\/stress-strain-curve-stress-strain-diagram\/ultimate-tensile-strength-uts\/\"><span>resist\u00eancia \u00e0 tra\u00e7\u00e3o final<\/span><\/a><\/strong><span>.\u00a0Nesse caso, a resist\u00eancia \u00e0 tra\u00e7\u00e3o final (em psi) \u00e9 aproximadamente igual ao n\u00famero de dureza Brinell multiplicado por\u00a0<\/span><strong><span>500<\/span><\/strong><span>.\u00a0Geralmente, uma alta dureza indica uma\u00a0<\/span><a href=\"https:\/\/material-properties.org\/what-is-strength-definition\/\"><span>resist\u00eancia relativamente alta<\/span><\/a><span>\u00a0e\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/ductility\/\"><span>baixa ductilidade<\/span><\/a><span>\u00a0no material.<\/span><\/p>\n<p><span>Na ind\u00fastria, os testes de dureza em metais s\u00e3o usados \u200b\u200bprincipalmente para verificar a qualidade e uniformidade dos metais, especialmente durante as opera\u00e7\u00f5es de tratamento t\u00e9rmico.\u00a0Os testes geralmente podem ser aplicados ao produto acabado sem danos significativos.<\/span><\/p>\n<p><span><\/span><\/p><\/div><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><span><div class=\"su-accordion su-u-trim\"><div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-plus\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Refer\u00eancias:<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">Ci\u00eancia dos Materiais:<\/div><\/div><\/div><\/span><\/p>\n<p><span>Departamento de Energia dos EUA, Ci\u00eancia de Materiais.\u00a0DOE Fundamentals Handbook, Volume 1 e 2. Janeiro de 1993.<\/span><br \/>\n<span>Departamento de Energia dos EUA, Ci\u00eancia de Materiais.\u00a0DOE Fundamentals Handbook, Volume 2 e 2. Janeiro de 1993.<\/span><br \/>\n<span>William D. Callister, David G. Rethwisch.\u00a0Ci\u00eancia e Engenharia de Materiais: Uma Introdu\u00e7\u00e3o 9\u00aa Edi\u00e7\u00e3o, Wiley;\u00a09 edi\u00e7\u00e3o (4 de dezembro de 2013), ISBN-13: 978-1118324578.<\/span><br \/>\n<span>Eberhart, Mark (2003).\u00a0Por que as coisas quebram: entendendo o mundo pela maneira como ele se desfaz.\u00a0Harmonia.\u00a0ISBN 978-1-4000-4760-4.<\/span><br \/>\n<span>Gaskell, David R. (1995).\u00a0Introdu\u00e7\u00e3o \u00e0 Termodin\u00e2mica dos Materiais (4\u00aa ed.).\u00a0Editora Taylor e Francis.\u00a0ISBN 978-1-56032-992-3.<\/span><br \/>\n<span>Gonz\u00e1lez-Vi\u00f1as, W. &amp; Mancini, HL (2004).\u00a0Uma Introdu\u00e7\u00e3o \u00e0 Ci\u00eancia dos Materiais.\u00a0Princeton University Press.\u00a0ISBN 978-0-691-07097-1.<\/span><br \/>\n<span>Ashby, Michael;\u00a0Hugh Shercliff;\u00a0David Cebon (2007).\u00a0Materiais: engenharia, ci\u00eancia, processamento e design (1\u00aa ed.).\u00a0Butterworth-Heinemann.\u00a0ISBN 978-0-7506-8391-3.<\/span><br \/>\n<span>JR Lamarsh, AJ Baratta, Introdu\u00e7\u00e3o \u00e0 Engenharia Nuclear, 3\u00aa ed., Prentice-Hall, 2001, ISBN: 0-201-82498-1.<\/span><br \/>\n<span><\/span><\/p><\/div><\/div><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><div class=\"su-divider su-divider-style-default\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\"><\/div><\/div><div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><span>Veja acima:<\/span><br \/>\n<span>Ind\u00fastria metalmec\u00e2nica<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/metalworking\/\" class=\"su-button su-button-style-flat\" style=\"color: #606060;background-color:#ffffff;border-color:#cccccc;border-radius:10px;-moz-border-radius:10px;-webkit-border-radius:10px\" target=\"_self\"><span style=\"color: #606060;padding:7px 20px;font-size:16px;line-height:24px;border-color:#ffffff;border-radius:10px;-moz-border-radius:10px;-webkit-border-radius:10px;text-shadow:0px 0px 0px #000000;-moz-text-shadow:0px 0px 0px #000000;-webkit-text-shadow:0px 0px 0px #000000\"><i class=\"sui sui-link\" style=\"font-size:16px;color:#5d5d5d\"><\/i> <\/span><\/a><\/span><\/p><\/div><\/div><div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\"><\/div><\/div><\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<p><span>Esperamos que este artigo,\u00a0<\/span><strong><span>Endurecimento de metais<\/span><\/strong><span>, ajude voc\u00ea.\u00a0Se sim,\u00a0<\/span><strong><span>d\u00ea um like<\/span><\/strong><span>\u00a0na barra lateral.\u00a0O objetivo principal deste site \u00e9 ajudar o p\u00fablico a aprender algumas informa\u00e7\u00f5es interessantes e importantes sobre materiais e suas propriedades.<\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Esperamos que este artigo,\u00a0Endurecimento de metais, ajude voc\u00ea.\u00a0Se sim,\u00a0d\u00ea um like\u00a0na barra lateral.\u00a0O objetivo principal deste site \u00e9 ajudar o p\u00fablico a aprender algumas informa\u00e7\u00f5es interessantes e importantes sobre materiais e suas propriedades. &nbsp;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>O que \u00e9 Endurecimento de Metais - Defini\u00e7\u00e3o | Propriedades do Material<\/title>\n<meta name=\"description\" content=\"O endurecimento de metais \u00e9 um processo metal\u00fargico de usinagem usado para aumentar a dureza de um metal. 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