激光表面处理铝-锂合金的组织与性能
姚大平,胡壮麒,李依依,张匀,师昌绪
摘要(Abstract)：
本文研究了激光表面处理对一种使用状态的铝-锂合金组织与性能的影响。实际结果表明,与基材的未再结晶+局部再结晶组织不同,在激光重熔区内,邻近基材是细小的等轴晶区;与此层相邻的是平行于热流方向的拉长晶粒区,心部则为粗大等轴晶粒组织。加快激光束扫描速度,可细化重熔区内晶粒而使显微硬度提高。在时效处理时,激光重熔区比基材硬度要高,而两者的断口形貌则差别不大。
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作者(Author): 姚大平,胡壮麒,李依依,张匀,师昌绪
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DOI: 10.14024/j.cnki.1004-244x.1989.10.001
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