亚稳β钛合金Ti-5553淬火时BCC相的晶体稳定性及α“马氏体”预测能力的结构准则比较

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-06-04 DOI:10.1016/j.jallcom.2025.181376

C.J. Williamson , A. Deal , B. Brown , L. Nastac , L.N. Brewer

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引用次数: 0

摘要

这项工作评估了目前为Ti-5553粉末开发的成分标准，并探索了亚稳β区域对熔体快速淬火过程中马氏体形成的敏感性。Ti-5553是一种β稳定钛合金，越来越多地用于增材制造应用。对Ti-5553成分空间内的一系列合金进行了双活塞溅射淬火，以实现每种合金成分的快速凝固和淬火。钼当量等典型经验模型不能完全分离残余的BCC和马氏体成分。利用热力学数据来估计形成马氏体所需的转变能量，可以区分合金，并为进一步确定亚稳态β钛合金的成分极限提供一个度量。

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Crystallographic stability of the BCC phase during quenching of metastable beta titanium alloy Ti-5553 and comparison of structural criteria for the predictive capability of α” martensite

This work evaluates the compositional standard currently developed for Ti-5553 powder and explores the metastable β region for sensitivity to martensitic formation during rapid quenching from the melt. Ti-5553 is a beta-stabilized titanium alloy that is increasingly being used in additive manufacturing applications. A series of alloys within the Ti-5553 compositional space was processed using two-piston spat quenching to perform rapid solidification and quenching for each of these alloy compositions. Typical empirical models such as molybdenum equivalency are not able to fully separate the retained BCC and martensitic compositions. The use of thermodynamic data to estimate the transformation energy needed to form martensite can differentiate the alloys and provide a metric to further develop compositional limits for metastable beta titanium alloy development.

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.