等径角挤压Al-Si-Mg合金的力学性能及干滑动磨损行为

IF 1.4 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
N.F.B.W. Anuar, M. S. Salleh, M. Z. Omar, Saifudin Hafiz Yahaya
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引用次数: 2

摘要

本研究研究了一种冷却斜面Al-Si-Mg合金经ECAP和T6热处理后的显微组织、硬度、拉伸和摩擦学行为。利用光学显微镜和扫描电镜对铸态材料和热处理后的ecape Al-Si-Mg合金的显微组织进行了研究。干滑动磨损试验采用针盘式摩擦计,分别在10 N、50 N和100 N三种不同载荷下进行,滑动速度为1.0 m/s,滑动距离为9000 m。通过显微硬度、UTS和YS测量对铸态Al-Si-Mg合金进行了硬度和拉伸性能评估,包括热处理和未热处理的eced合金。分析了不同载荷下Al-Si-Mg合金的磨损率和COF,并将其与ECAP工艺后的显微组织和强度行为联系起来。同时,这些分析结果与铸态Al-Si-Mg铝合金和热处理后的非eced合金的行为相关联。结果表明,在100 N载荷下,ECAP加工和T6热处理相结合改善了合金的力学性能,同时提高了COF和磨损率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mechanical properties and dry sliding wear behaviour of Al–Si–Mg alloy by equal channel angular pressing
This study investigated the microstructure, hardness, tensile and tribological behaviour of a cooling slope Al–Si–Mg alloy following ECAP and T6 heat treatment. The optical and scanning electron microscopes were applied to investigate the microstructure of the as-cast material and heat-treated ECAPed Al–Si–Mg alloy. The dry sliding wear test was tested with three different loads of 10 N, 50 N, and 100 N with constant sliding speed and sliding distance at 1.0 m/s and 9000 m, respectively, using the pin-on-disc tribometer. The hardness and tensile properties were evaluated through microhardness, UTS, and YS measurement for the as-cast Al–Si–Mg alloy, both heat-treated with and without ECAPed alloys. Moreover, wear rate and COF in the Al–Si–Mg alloy with different loads were analysed and linked with microstructural and strength behaviour after the ECAP process. Meanwhile, these analyses of results were correlated with the behaviour of the as-cast Al–Si–Mg aluminium alloy and heat-treated non-ECAPed alloy. Results demonstrated that a combination of ECAP processing and T6 heat treatment improves the mechanical behaviour, while the COF and wear rate are improved at a load of 100 N.
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来源期刊
AIMS Materials Science
AIMS Materials Science MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
3.60
自引率
0.00%
发文量
33
审稿时长
4 weeks
期刊介绍: AIMS Materials Science welcomes, but not limited to, the papers from the following topics: · Biological materials · Ceramics · Composite materials · Magnetic materials · Medical implant materials · New properties of materials · Nanoscience and nanotechnology · Polymers · Thin films.
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