{"id":21199,"date":"2022-06-18T15:27:46","date_gmt":"2022-06-18T07:27:46","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=21199"},"modified":"2022-06-18T15:27:51","modified_gmt":"2022-06-18T07:27:51","slug":"7-factors-affecting-fatigue-of-metal-materials","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/zh\/7-factors-affecting-fatigue-of-metal-materials\/","title":{"rendered":"\u5f71\u54cd\u91d1\u5c5e\u6750\u6599\u75b2\u52b3\u76847\u4e2a\u56e0\u7d20"},"content":{"rendered":"
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\u5e94\u529b\u96c6\u4e2d\u5bf9\u75b2\u52b3\u7684\u5f71\u54cd<\/h2>\n\n\n\n

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\"\"<\/figure>\n\n\n\n

\u5c3a\u5bf8\u56e0\u7d20\u7684\u5f71\u54cd<\/h2>\n\n\n\n

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There are always uneven machining marks on the machined surface, which are equivalent to tiny notches, causing stress concentration on the material surface, thus reducing the fatigue strength of the material. The test shows that for steel and aluminum alloy, the fatigue limit of rough machining (rough turning) is reduced by 10% – 20% or more than that of longitudinal fine polishing. The higher the strength of the material, the more sensitive it is to the surface finish.<\/p>\n\n\n\n

\u5316\u5b66\u6210\u5206\u7684\u5f71\u54cd<\/h2>\n\n\n\n

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\"\"<\/figure>\n\n\n\n

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The fatigue strength of metal materials is very sensitive to various external and internal factors. External factors include the shape and size of the part, surface finish and service conditions, while internal factors include the composition of the material itself, organizational state, purity and residual stress. Subtle changes of these factors will cause fluctuations or…<\/p>","protected":false},"author":2,"featured_media":21203,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[79],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2022\/06\/image-18-1.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/posts\/21199"}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/comments?post=21199"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/posts\/21199\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/media\/21203"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/media?parent=21199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/categories?post=21199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/tags?post=21199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}