火花等离子烧结Mg-Ni复合材料摩擦学性能评价

IF 1.6 Q4 MATERIALS SCIENCE, COATINGS & FILMS
Ogunlakin Nasirudeen Olalekan, M. Abdul Samad, S. Hassan, M. M. Elhady
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引用次数: 3

摘要

摘要在不使用球磨的情况下,采用混合火花等离子体烧结粉末冶金技术将元素镍颗粒掺入镁基体中,并评价了其对镁硬度和摩擦学性能的影响。使用440C硬化不锈钢球作为相对面,以0.1的恒定线速度进行球对盘磨损试验 在2.5、5和10的不同正常负载下m/s N、 分别。使用配备有能量色散光谱仪的FESEM对圆盘样品上的磨损轨迹进行表征,以研究磨损机制和特征。结果表明,与单片样品相比,增强镁复合材料表现出优异的摩擦学性能,摩擦系数降低了27.5%,重量损失降低了53.7%。磨损轨迹的微观结构分析建立了磨损、粘着、分层和氧化磨损的不同磨损机制。图形摘要
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Tribological evaluations of spark plasma sintered Mg–Ni composite
ABSTRACT Elemental nickel particle was incorporated into magnesium matrix using blend-spark plasma sintering powder metallurgy technique without the use of ball milling and its effect on the hardness and tribological behaviour of magnesium was evaluated. Ball-on-disc wear tests were carried out using a 440C hardened stainless steel ball as a counter-face with a constant linear speed of 0.1 m/s under varying normal loads of 2.5, 5 and 10 N, respectively. The wear track on the disk samples was characterised using a FESEM equipped with energy dispersive spectrometer to investigate the wear mechanisms and features. Results showed that the reinforced magnesium composite showed excellent tribological properties as compared to the monolithic samples in terms of a reduction of up to 27.5% in the coefficient of friction and a reduction of up to 53.7% in weight loss. Microstructural analysis of the wear track established different wear mechanisms of abrasion, adhesive, delamination and oxidative wear. GRAPHICAL ABSTRACT
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来源期刊
Tribology - Materials, Surfaces & Interfaces
Tribology - Materials, Surfaces & Interfaces MATERIALS SCIENCE, COATINGS & FILMS-
CiteScore
2.80
自引率
0.00%
发文量
15
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