激光粉末床熔合β型钛合金：研究热处理后的腐蚀行为和磨损性能

IF 6.2 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-06-19 DOI:10.1016/j.jmrt.2025.06.120

Xuan Luo , Yuhao Li , Chao Yang , Chao Zhao , Hongwei Ma , Tao Song , Minghan Sun , Xiaotao Liu , Dongdong Li , Ning Li

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引用次数: 0

摘要

系统地评估钛合金的耐蚀性和磨损性能对于推进生物医学钛合金在植入物中的应用至关重要。本研究系统研究了激光粉末床熔合（LPBF）制备的β型Ti-34.5Nb-6.9Zr-4.9Ta-1.4Si （TNZTS）合金热处理后的腐蚀磨损特性，并与LPBF制备的Ti-35Nb-7Zr-5Ta （TNZT）和Ti-6Al-4V合金进行了比较。电化学分析表明，TNZTS体系具有良好的耐腐蚀性，这主要源于钝化膜的稳定形成。Si的掺入对TNZT合金的腐蚀性能影响不显著。此外，具有硬S2相的TNZTS合金的耐磨性得到了改善，表现为磨损痕迹更浅、更窄，比磨损率更低。该研究为新型β型Ti-Nb-Zr-Ta-Si合金提供了基础见解，该合金具有优异的耐腐蚀性和磨损性能，将其定位为承载骨科植入物应用的有前途的候选者。

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Insights into laser powder bed fused β-type titanium alloy: Investigating corrosion behavior and wear properties after post-heat treatment

The systematic evaluation of corrosion resistance and wear behavior represents a critical imperative for advancing biomedical titanium alloys in implant applications. This study systematically examines the corrosion-wear characteristics of laser powder bed fusion (LPBF)-fabricated β-type Ti-34.5Nb-6.9Zr-4.9Ta-1.4Si (TNZTS) alloy after post heat treatment, comparing with LPBF-processed Ti–35Nb–7Zr–5Ta (TNZT) and Ti–6Al–4V counterparts. Electrochemical analysis reveals the TNZTS system's good corrosion resistance, stemming primarily from stabilized passivation film formation. The incorporation of Si did not significantly affect the corrosion performance of TNZT alloy. In addition, the TNZTS alloy with hard S2 phase showes improvement in wear resistance, as manifested by shallower and narrower wear tracks and a lower specific wear rate. This study provides foundational insights into the novel β-type Ti–Nb–Zr–Ta–Si alloy with excellent corrosion resistance and wear properties, positioning it as a promising candidate for load-bearing orthopedic implant applications.

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来源期刊

Journal of Materials Research and Technology-Jmr&t Materials Science-Metals and Alloys

CiteScore

8.80

自引率

9.40%

发文量

1877

审稿时长

35 days

期刊介绍： The Journal of Materials Research and Technology is a publication of ABM - Brazilian Metallurgical, Materials and Mining Association - and publishes four issues per year also with a free version online (www.jmrt.com.br). The journal provides an international medium for the publication of theoretical and experimental studies related to Metallurgy, Materials and Minerals research and technology. Appropriate submissions to the Journal of Materials Research and Technology should include scientific and/or engineering factors which affect processes and products in the Metallurgy, Materials and Mining areas.