Ti-48Al-2Nb-2Cr合金干滑动磨损行为研究

IF 1.6 Q4 MATERIALS SCIENCE, COATINGS & FILMS

Tribology - Materials, Surfaces & Interfaces Pub Date : 2021-02-22 DOI:10.1080/17515831.2021.1881876

Keyan Enayati, F. Sayyedan

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引用次数: 2

摘要

摘要本研究的目的是研究Ti-48Al-2Nb-2Cr合金在干滑动往复条件下的摩擦学行为。采用往复磨损试验机对该合金的典型耐磨性进行了评价。利用扫描电子显微镜(SEM)和能量色散x射线能谱(EDS)对磨损表面的基础结构进行了评估。初始试样的平均表面粗糙度为32 nm。通过对磨损表面和碎屑的扫描电镜观察，确定了摩擦系统下的主要磨损机制是磨粒磨损和分层磨损。失重测量结果表明，当施加载荷从10 N增加到40 N时，在超过1000 m滑移距离后，失重从5.4µg显著增加到18.5µg。图形抽象

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Study of dry sliding wear behaviour of Ti-48Al-2Nb-2Cr alloy

ABSTRACT The aim of this research was to study the tribological behaviour of Ti–48Al–2Nb–2Cr alloy under dry sliding reciprocating conditions. A reciprocating wear machine was employed to evaluate the typical abrasion resistance of the alloy. Infrastructure assessment of worn surfaces was performed by scanning electron microscopy (SEM) analysis equipped with Energy Dispersive X-Ray Spectroscopy (EDS). The average surface roughness of initial specimen was 32 nm. According to the SEM observations of worn surfaces and debris, the dominant wear mechanism under defined tribosystem was identified to be abrasive and delamination wear. The weight loss measurements showed that by increasing the applied load from 10 to 40 N, the weight loss was significantly increased from 5.4 to 18.5 µg after passing 1000 m slip distance. GRAPHICAL ABSTRACT

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来源期刊

Tribology - Materials, Surfaces & Interfaces MATERIALS SCIENCE, COATINGS & FILMS-

CiteScore

2.80

自引率

0.00%

发文量