Effect of stage gas nitriding on corrosion and wear resistance of Ti6Al4V alloy in physiological environment

IF 3.8 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Vacuum Pub Date : 2024-10-05 DOI:10.1016/j.vacuum.2024.113713

引用次数: 0

Abstract

The wear and corrosion resistance of the Ti6Al4V alloy after gas nitriding combined with stage heat treatment was studied in the physiological environment. It was shown that nitriding temperature at the first stage of the heat treatment mainly effects on the surface quality and microhardness of the treated alloy. The corrosion behaviour of the nitrided Ti6Al4V alloy was studied in Ringer's solution, which simulates the physiological environment of human body. It was shown that the corrosion resistance of the alloy is enhanced by increasing thickness and TiN content in the nitride layer, and improving surface quality. The tribological characteristics of the nitrided Ti6Al4V alloy in a tribo-pair with PE-UHMW were evaluated in a 10 % aqueous solution of chondroitin sulfate, which simulates the synovial fluid. It was established that reducing nitriding temperature at the first stage of the heat treatment improved the wear resistance of the treated alloy due to decrease of the surface roughness and microhardness.

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阶段气体氮化对生理环境下 Ti6Al4V 合金耐腐蚀性和耐磨性的影响

研究了在生理环境下，Ti6Al4V 合金经气体氮化结合阶段热处理后的耐磨性和耐腐蚀性。结果表明，热处理第一阶段的氮化温度主要影响处理后合金的表面质量和显微硬度。在模拟人体生理环境的林格氏溶液中研究了氮化 Ti6Al4V 合金的腐蚀行为。结果表明，通过增加氮化层的厚度和 TiN 含量以及改善表面质量，合金的耐腐蚀性能得到了提高。在模拟滑液的 10% 硫酸软骨素水溶液中，评估了氮化 Ti6Al4V 合金与 PE-UHMW 三元对的摩擦学特性。结果表明，在热处理的第一阶段降低氮化温度可降低表面粗糙度和显微硬度，从而提高合金的耐磨性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Vacuum 工程技术-材料科学：综合

CiteScore

6.80

自引率

17.50%

发文量

审稿时长

34 days

期刊介绍： Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences. A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below. The scope of the journal includes: 1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes). 2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis. 3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification. 4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.