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The resource-saving die titanium alloy component and its production manner which are superior in strength and tenacity
The resource-saving die titanium alloy component and its production manner which are superior in strength and tenacity
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机译:强度和韧性优异的节省资源的模具钛合金零件及其生产方式
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摘要
[Object] To provide, at low cost, a resource saving-type titanium alloy that uses alloy elements more abundant in resources and more inexpensively available compared to conventional titanium alloys, and, when added even in a smaller amount than the conventional alloys, can simultaneously realize both high strength and high toughness [Solution] Provided is a titanium alloy member having excellent strength and toughness, consisting of, in mass%, Al: more than or equal to 4.5% and less than 5.5%, Fe: more than or equal to 1.3% and less than 2.3%, Si: more than or equal to 0.25% and less than 0.50%, O: more than or equal to 0.05% and less than 0.25%, and the balance: titanium and unavoidable impurities. The titanium alloy member has a microscopic structure that is an acicular structure having an acicular ± phase with a mean width of less than 5 µm.
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