Effects of plasma surface Ta alloying on the tribology behavior of γ-TiAl

IF 0.9 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2021-01-01 DOI:10.2298/JMMB200617002W

D. Wei, Xiaoyong Zhou, Fengkun Li, M. Li, Shuqin Li, Pingze Zhang

引用次数: 2

Abstract

To improve the wear resistance of ?-TiAl alloy, Ta alloy layer was prepared on surface by double glow plasma surface alloying technique. The tribology behavior of Ta alloy layer against Si3N4 at 25?, 350? and 500? were comparatively studied. The results showed that Ta alloy layer comprised a deposition layer and a diffusion layer. The deposition layer played a role in protection as a soft film. With the increase of temperature, the wear mechanism of ?-TiAl changed from abrasive wear to coexistence of abrasive wear and oxidation wear. Ta alloy layer?s wear mechanism changed from adhesive wear to coexistence of adhesive wear and oxidation wear. Surface Ta alloying process significantly reduced the wear volume, the specific wear rate and the friction coefficient of ?-TiAl and improved the wear resistance properties of ?-TiAl.

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等离子体表面Ta合金化对γ-TiAl摩擦学行为的影响

为提高tial合金的耐磨性，采用双辉光等离子体表面合金化技术在表面制备了Ta合金层。25?时Ta合金层对Si3N4的摩擦行为, 350 ?和500年?比较研究。结果表明:Ta合金层由沉积层和扩散层组成。沉积层作为软膜起到保护作用。随着温度的升高，tial的磨损机制由磨粒磨损转变为磨粒磨损与氧化磨损并存。合金层?S磨损机理由黏着磨损转变为黏着磨损与氧化磨损并存。表面Ta合金化处理显著减小了-TiAl的磨损体积、比磨损率和摩擦系数，提高了-TiAl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

Journal of Mining and Metallurgy Section B-Metallurgy 工程技术-冶金工程

CiteScore

2.00

自引率

40.00%

发文量

审稿时长

2 months

期刊介绍： University of Belgrade, Technical Faculty in Bor, has been publishing the journal called Journal of Mining and Metallurgy since 1965 and in 1997 it was divided in two independent journals dealing with mining and metallurgy separately. Since 2009 Journal of Mining and Metallurgy, Section B: Metallurgy has been accepted in Science Citation Index Expanded. Journal of Mining and Metallurgy, Section B: Metallurgy presents an international medium for the publication of contributions on original research which reflect the new progresses in theory and practice of metallurgy. The Journal covers the latest research in all aspects of metallurgy including hydrometallurgy, pyrometallurgy, electrometallurgy, transport phenomena, process control, solidification, mechanical working, solid state reactions, materials processing, surface treatment and relationships among processing, structure, and properties of materials.