tens\u00e3o interna<\/a> n\u00e3o for razoavelmente eliminada, estas tens\u00f5es concentrar-se-\u00e3o no material, causando problemas como a fissura\u00e7\u00e3o e a delamina\u00e7\u00e3o do material, o que tornar\u00e1 o carboneto de tungst\u00e9nio fr\u00e1gil.<\/p>\n\n\n\n3. fissura\u00e7\u00e3o no contorno de gr\u00e3o:<\/p>\n\n\n\n
Os limites dos gr\u00e3os s\u00e3o os elos fracos do carboneto de tungst\u00e9nio e os locais onde o material \u00e9 propenso a fissuras. Quando o material de carboneto de tungst\u00e9nio est\u00e1 num estado de alta temperatura, devido ao pequeno espa\u00e7amento molecular do material no limite do gr\u00e3o, \u00e9 f\u00e1cil dobrar e quebrar o limite do gr\u00e3o. Nas aplica\u00e7\u00f5es reais de processamento, se a for\u00e7a de corte for demasiado grande e a temperatura for demasiado elevada, o limite do gr\u00e3o do material de carboneto de tungst\u00e9nio ser\u00e1 mais facilmente danificado.<\/p>\n\n\n\n
4. influ\u00eancia da tecnologia de transforma\u00e7\u00e3o:<\/p>\n\n\n\n
A tecnologia de transforma\u00e7\u00e3o do carboneto de tungst\u00e9nio tamb\u00e9m afectar\u00e1 a sua resist\u00eancia e tenacidade. Por exemplo, o tratamento t\u00e9rmico excessivo, o arrefecimento excessivo, a sobrecarga, etc. durante o processamento afectar\u00e3o as propriedades mec\u00e2nicas do carboneto de tungst\u00e9nio. Al\u00e9m disso, os diferentes m\u00e9todos de processamento de corte, a sele\u00e7\u00e3o dos par\u00e2metros de corte, etc., tamb\u00e9m ter\u00e3o um certo impacto na resist\u00eancia e na tenacidade dos materiais de carboneto de tungst\u00e9nio.<\/p>\n\n\n\n
Em suma, as principais raz\u00f5es para a fragilidade do carboneto de tungst\u00e9nio incluem problemas como a concentra\u00e7\u00e3o intr\u00ednseca de tens\u00f5es e a fissura\u00e7\u00e3o dos limites do gr\u00e3o. A fim de melhorar as propriedades mec\u00e2nicas dos materiais de carboneto de tungst\u00e9nio, \u00e9 necess\u00e1rio refor\u00e7ar o controlo e a otimiza\u00e7\u00e3o do processo de prepara\u00e7\u00e3o do material e da tecnologia de processamento para melhorar a tenacidade e a durabilidade do material. <\/p>","protected":false},"excerpt":{"rendered":"
Is tungsten carbide brittle 1.Characteristics of tungsten carbide: Tungsten carbide has the advantages of high hardness, high strength, high wear resistance, and high temperature resistance, and is an important cutting tool material.\u00a0However, tungsten carbide also has shortcomings, mainly manifested in low toughness and brittleness. 2.Internal stress concentration: Tungsten carbide is obtained by high-temperature sintering of 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and high temperature resistance, and is an important cutting tool material.\u00a0However, tungsten carbide also has shortcomings, mainly manifested in low toughness and brittleness. 2.Internal stress concentration: Tungsten carbide is obtained by high-temperature sintering of…","_links":{"self":[{"href":"https:\/\/www.wolframcarbide.com\/pt\/wp-json\/wp\/v2\/posts\/2803","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wolframcarbide.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wolframcarbide.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wolframcarbide.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wolframcarbide.com\/pt\/wp-json\/wp\/v2\/comments?post=2803"}],"version-history":[{"count":2,"href":"https:\/\/www.wolframcarbide.com\/pt\/wp-json\/wp\/v2\/posts\/2803\/revisions"}],"predecessor-version":[{"id":2806,"href":"https:\/\/www.wolframcarbide.com\/pt\/wp-json\/wp\/v2\/posts\/2803\/revisions\/2806"}],"wp:attachment":[{"href":"https:\/\/www.wolframcarbide.com\/pt\/wp-json\/wp\/v2\/media?parent=2803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wolframcarbide.com\/pt\/wp-json\/wp\/v2\/categories?post=2803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wolframcarbide.com\/pt\/wp-json\/wp\/v2\/tags?post=2803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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