{"id":119655,"date":"2023-02-07T20:59:23","date_gmt":"2023-02-07T19:59:23","guid":{"rendered":"https:\/\/material-properties.org\/usos-de-metais-leves-e-ligas-aplicacao-definicao\/"},"modified":"2023-02-13T18:54:02","modified_gmt":"2023-02-13T17:54:02","slug":"usos-de-metais-leves-e-ligas-aplicacao-definicao","status":"publish","type":"post","link":"https:\/\/material-properties.org\/pt-br\/usos-de-metais-leves-e-ligas-aplicacao-definicao\/","title":{"rendered":"Usos de Metais Leves e Ligas \u2013 Aplica\u00e7\u00e3o \u2013 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\">As ligas leves s\u00e3o amplamente utilizadas em aplica\u00e7\u00f5es aeroespaciais, automotivas, arquitet\u00f4nicas, litogr\u00e1ficas, de embalagens, el\u00e9tricas e eletr\u00f4nicas.\u00a0Eles s\u00e3o o principal material de constru\u00e7\u00e3o para a ind\u00fastria aeron\u00e1utica.<\/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><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/titanium-grade-5-image-min.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignright size-medium wp-image-29423\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/titanium-grade-5-image-min-300x300.png\" alt=\"Liga de tit\u00e2nio\" width=\"300\" height=\"300\" \/><\/a><span>Os metais leves<\/span><\/strong><span>\u00a0e suas\u00a0<\/span><strong><span>ligas<\/span><\/strong><span>\u00a0s\u00e3o materiais de\u00a0<\/span><strong><span>densidade relativamente baixa<\/span><\/strong><span>\u00a0e\u00a0<\/span><strong><span>altas rela\u00e7\u00f5es resist\u00eancia-peso<\/span><\/strong><span>.\u00a0Esses metais e ligas s\u00e3o de grande import\u00e2ncia em aplica\u00e7\u00f5es de engenharia para uso em transporte terrestre, mar\u00edtimo, a\u00e9reo e espacial.\u00a0<\/span><strong><span>Magn\u00e9sio, alum\u00ednio e tit\u00e2nio<\/span><\/strong><span>\u00a0s\u00e3o metais leves de significativa import\u00e2ncia comercial.\u00a0Esses tr\u00eas metais e suas ligas compreendem a maior parte dos materiais met\u00e1licos de alta rela\u00e7\u00e3o resist\u00eancia\/peso usados \u200b\u200bem sistemas industriais.\u00a0<\/span><strong><span>O alum\u00ednio \u00e9 o mais vers\u00e1til<\/span><\/strong><span>\u00a0desses materiais e\u00a0<\/span><strong><span>o tit\u00e2nio \u00e9 o mais resistente \u00e0 corros\u00e3o<\/span><\/strong><span>\u00a0com resist\u00eancia muito alta, enquanto\u00a0<\/span><strong><span>o magn\u00e9sio tem a densidade mais baixa<\/span><\/strong><span>.\u00a0Suas densidades de 1,7 (magn\u00e9sio), 2,7 (alum\u00ednio) e 4,5 g\/cm<\/span><sup><span>3<\/span><\/sup><span> (tit\u00e2nio) variam de 19 a 56% das densidades dos metais estruturais mais antigos, ferro (7,9 g\/cm<\/span><sup><span>3<\/span><\/sup><span>) e cobre (8,9 g\/cm<sup>3<\/sup>).<\/span><sup><span>\u00a0<\/span><\/sup><span>Os metais comumente classificados como metais leves s\u00e3o aqueles cuja densidade \u00e9 menor que a densidade do\u00a0<\/span><a href=\"https:\/\/material-properties.org\/what-are-steels-properties-of-steels-definition\/\"><span>a\u00e7o<\/span><\/a><span> (7,8 g\/cm<\/span><sup><span>3<\/span><\/sup><span>, ou 0,28 lb\/in.<\/span><sup><span>3<\/span><\/sup><span>).<\/span><\/p>\n<p><span>Como esses metais puros s\u00e3o geralmente materiais mais macios com resist\u00eancia insuficiente, eles devem ser ligados para atingir as propriedades mec\u00e2nicas desejadas.\u00a0Por exemplo, o alum\u00ednio de alta pureza \u00e9 um material macio com resist\u00eancia m\u00e1xima de aproximadamente 10 MPa, o que limita sua usabilidade em aplica\u00e7\u00f5es industriais.\u00a0Por outro lado, a resist\u00eancia \u00e0 tra\u00e7\u00e3o da liga de alum\u00ednio 6061 pode atingir mais de 290 MPa, dependendo do temperamento do material.\u00a0Portanto, estamos discutindo principalmente as ligas em vez de metais puros.<\/span><\/p>\n<h2><span>Aplica\u00e7\u00e3o de Ligas Leves<\/span><\/h2>\n<figure id=\"attachment_29428\" aria-describedby=\"caption-attachment-29428\" style=\"width: 290px\" class=\"wp-caption alignright\"><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/forged-magnesium-wheels-min.png\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-29428\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/forged-magnesium-wheels-min-300x194.png\" alt=\"Ligas de magn\u00e9sio\" width=\"300\" height=\"194\" \/><\/a><figcaption id=\"caption-attachment-29428\" class=\"wp-caption-text\"><span>Rodas forjadas de magn\u00e9sio<\/span><\/figcaption><\/figure>\n<p><strong><span>As ligas leves<\/span><\/strong><span>\u00a0s\u00e3o amplamente utilizadas em aplica\u00e7\u00f5es aeroespaciais, automotivas, arquitet\u00f4nicas, litogr\u00e1ficas, de embalagens, el\u00e9tricas e eletr\u00f4nicas.\u00a0Eles s\u00e3o o principal material de constru\u00e7\u00e3o para a ind\u00fastria aeron\u00e1utica durante a maior parte de sua hist\u00f3ria.\u00a0Cerca de 70% das fuselagens de aeronaves civis comerciais s\u00e3o feitas de ligas de alum\u00ednio, e sem alum\u00ednio a avia\u00e7\u00e3o civil n\u00e3o seria economicamente vi\u00e1vel.\u00a0Um quilograma de metal economizado no projeto e na constru\u00e7\u00e3o de uma aeronave pode resultar em importantes economias de peso nos custos de constru\u00e7\u00e3o e no consumo total de combust\u00edvel.<\/span><\/p>\n<p><span>Outros metais, como a\u00e7o e tit\u00e2nio, \u00e0s vezes s\u00e3o usados \u200b\u200bpara construir aeronaves.\u00a0O a\u00e7o \u00e9 pesado, portanto, n\u00e3o \u00e9 usado muito.\u00a0O tit\u00e2nio \u00e9 quase t\u00e3o forte quanto o a\u00e7o, tem peso m\u00e9dio, \u00e9 resistente ao calor e resistente \u00e0 corros\u00e3o.\u00a0Por exemplo, o Lockheed SR-71 Blackbird, o avi\u00e3o a jato mais r\u00e1pido do mundo, \u00e9 feito de tit\u00e2nio.\u00a0Em alguns casos, essas ligas leves podem ser substitu\u00eddas por\u00a0<\/span><strong><span>materiais compostos<\/span><\/strong><span>, especialmente aqueles feitos de fibras de vidro, fibras de carbono e Kevlar. Esses materiais compostos s\u00e3o fortes, mas podem pesar metade do alum\u00ednio.\u00a0Esses materiais leves e personaliz\u00e1veis \u200b\u200best\u00e3o se tornando mais populares.\u00a0Mais da metade dos materiais usados \u200b\u200bpara fabricar o Boeing 787 Dreamliner s\u00e3o comp\u00f3sitos.<\/span><\/p>\n<p><span>As ligas leves \u00e0 base de metal tamb\u00e9m podem ser usadas para pe\u00e7as que operam em altas velocidades e, portanto, devem ser leves para minimizar as for\u00e7as inerciais.\u00a0Outras aplica\u00e7\u00f5es comerciais incluem ferramentas port\u00e1teis, laptops, malas e escadas, autom\u00f3veis (por exemplo, volantes e colunas, estruturas de assentos, caixas de transmiss\u00e3o).<\/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>Ligas leves<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/alloys-composition-properties-of-metal-alloys\/light-metals- and-alloys\/\" 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>Usos de metais leves e ligas \u2013 Aplica\u00e7\u00e3o<\/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,\u00a0Usos de metais leves e ligas \u2013 Aplica\u00e7\u00e3o, 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>Usos de Metais Leves e Ligas \u2013 Aplica\u00e7\u00e3o | Propriedades do Material<\/title>\n<meta name=\"description\" content=\"As ligas leves s\u00e3o amplamente utilizadas em aplica\u00e7\u00f5es aeroespaciais, automotivas, arquitet\u00f4nicas, litogr\u00e1ficas, de embalagem, el\u00e9tricas e eletr\u00f4nicas. 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