Low-cost Fe-bearing powder metallurgy Ti alloys
Low-cost Fe-bearing powder metallurgy Ti alloys
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低成本含铁粉末冶金钛合金
DOI：
10.1016/j.mprp.2019.01.007
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发表时间：
2019
影响因子：
--
通讯作者：
L. Bolzoni
中科院分区：
文献类型：
--
作者：
L. Bolzoni
低成本钛合金可以进入汽车等对成本敏感的行业，带来显著的环境效益，并可能导致钛市场的稳定，从而进一步降低成本。本文综述了粉末冶金法制备的低成本含铁钛合金在设计、制造和性能方面取得的进展。合金和制造成本降低的最大化来自于所选择的起始材料、合金元素和用于生产合金的加工步骤的组合的共同贡献。具体而言，低成本的市售粉末（纯钛和铁粉末）通过压制和烧结进行元素混合和加工。低成本含铁粉末冶金钛合金旨在防止脆化，通常达到α + β钛合金的典型性能;因此，它们是制造非关键工程部件的合适替代品。概述最后提出了需要进一步基础研究的科学兴趣领域，这将有助于应对推进这些新的低成本含铁粉末冶金钛合金的工业实施的生产的挑战。
Low-cost titanium alloys could find their way into cost-sensitive sectors such as the automotive bringing significant environmental benefits and potentially leading to the stabilization of the titanium market, with an associated further reduction in costs. This work presents an overview of the advancements made on the understanding of the design, manufacturing and properties of low-cost Fe-bearing Ti alloys manufactured via powder metallurgy. Maximization of the reduction in the alloy and manufacturing costs derives from the joint contribution of the selected starting materials, alloying elements, and combination of processing steps used to produce the alloy. Specifically, low-cost commercially available powders (pure Ti and ferrous powders) are elementally blended and processed via press and sinter. The low-cost Fe-bearing powder metallurgy Ti alloys are designed to prevent embrittlement and commonly reach the properties typical of alpha + beta titanium alloys; they are therefore suitable alternative to manufacture non-critical engineering components. The overview is finalized by proposing areas of scientific interest needing further basic research which will help to tackle the challenge of moving forward the production of these new low-cost Fe-bearing powder metallurgy Ti alloys for industrial implementation.