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首页> 外文期刊>Journal of Materials Engineering and Performance >Development of Ti-6Al-4V and Ti-1Al-8V-5Fe Alloys Using Low-Cost TiH_2 Powder Feedstock
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Development of Ti-6Al-4V and Ti-1Al-8V-5Fe Alloys Using Low-Cost TiH_2 Powder Feedstock

机译：利用低成本TiH_2粉末原料开发Ti-6Al-4V和Ti-1Al-8V-5Fe合金

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摘要

Thermo-mechanical processing was performed on two titanium alloy billets, a beta-titanium alloy (Ti1Al8V5Fe) and an alpha-beta titanium alloy (Ti6Al4V), which had been produced using a novel low-cost powder metallurgy process that relies on the use of TiH_2 powder as a feedstock material. The thermo-mechanical processing was performed in the beta region of the respective alloys to form 16-mm diameter bars. The hot working followed by the heat treatment processes not only eliminated the porosity within the materials but also developed the preferred microstructures. Tensile testing and rotating beam fatigue tests were conducted on the as-rolled and heat-treated materials to evaluate their mechanical properties. The mechanical properties of these alloys matched well with those produced by the conventional ingot processing route.
机译：对两种钛合金坯料进行了热机械加工，一种是采用新颖的低成本粉末冶金工艺生产的β-钛合金（Ti1Al8V5Fe）和一种α-β钛合金（Ti6Al4V），这种工艺依赖于TiH_2粉末作为原料。在相应合金的β区域中进行热机械加工，以形成16毫米直径的棒。热处理之后进行的热加工不仅消除了材料内的孔隙，而且形成了首选的微结构。对轧制和热处理过的材料进行拉伸测试和旋转梁疲劳测试，以评估其机械性能。这些合金的机械性能与常规铸锭加工路线所产生的机械性能非常匹配。

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