研究了搅拌摩擦加工AM60B镁合金的显微组织、硬度及摩擦磨损性能

Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence Pub Date : 2019-09-20 DOI:10.1145/3366194.3366207

Nannan Wang, Lijie Cao, Kai Yin

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引用次数: 1

摘要

研究了搅拌摩擦工艺(FSP)参数对AM60B镁合金显微组织和力学性能的影响。对合金进行摩擦搅拌，转速为1600 rpm，横移速度为100 mm/min、200 mm/min和300mm/min。FSP使AM60B镁合金组织均匀，晶粒细化。随着横移速度的增加，搅拌区(SZ)的平均晶粒尺寸减小。所有FSPed样品中SZs的Vikers硬度均高于基材(BM)。较高的FSP横移速度导致摩擦系数为0.012，磨损率为0.008 mg/m，在载荷为80 N、滑动速度为0.2 m/s时，所有试样的磨损机制均以磨蚀磨损为主。

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The microstructure, hardness and friction and wear behavior of AM60B magnesium alloy by friction stir processing

The effect of friction stir process (FSP) parameters on the microstructure and mechanical properties of AM60B magnesium alloy was investigated in this paper. The alloy was friction stir processed with rotation speed of 1600 rpm and three traverse speeds of 100 mm/min, 200 mm/min and 300mm/min. FSP results in remarkable homogeneous microstructure and grain refinement of the AM60B magnesium alloy. With the traverse speed increasing, the average grain size decreases in the stir zone (SZ). The Vikers hardness of SZs in all FSPed samples is higher than that of the base material (BM). Higher FSP traverse speed resulted in coefficient of friction of 0.012 and wear rate of 0.008 mg/m, and in the load 80 N and sliding velocity 0.2 m/s, the wear mechanism is mainly abrasion wear in all samples.

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Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence

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