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激光冲击强化对7075铝合金干摩擦特性的实验研究
Authors
宁成义
张文武
+4 more
王浩
田传鑫
陈晓晓
黄亿辉
Publication date
1 January 2017
Publisher
Abstract
实验研究了激光冲击强化对7075铝合金干摩擦性能的影响。通过对激光冲击强化前后的试件进行物相分析、硬度分析、残余应力分析以及金相组织分析,总结激光冲击强化改善7075铝合金耐磨性的原因。结果表明,激光冲击强化能使材料表面产生晶粒细化,提高材料的表面硬度,产生残余压应力;经过激光冲击强化处理之后7075铝合金的磨损量降低43.63%;磨痕的深度和宽度分别降低45.76%和18.84%,并且摩擦系数明显降低。激光冲击强化是一种能够有效改善7075铝合金耐磨性能的表面处理技术
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Last time updated on 22/01/2018