摘要
通过适当调整FeCrNi合金的成分,改变其热膨胀系数,用以进行激光熔覆,并研究熔覆层的开裂敏感性,结果表明降低熔覆层热膨胀系数有利于明显减小激光熔覆层的开裂敏感性。对此进行了较详细的分析,并为解决熔覆层开裂,提出了熔覆合金与基材间热膨胀系数差值要有合理范围的观点。
After adjusting components of the FeCrNi alloy powder whichis used to laser clad on 45 steel,we find that the expansion coefficient of clad layer and its′ cracking sensitivity have been changed,and the cracking sensitivity decrease with lowering of expansion coefficient of clad layer.In this paper we discusse these results and point out that proper selecting the range of the difference of expansion coefficient between clad layer and substrate is beneficial to reduce cracking sensitivity of clad layer.
出处
《激光技术》
EI
CAS
CSCD
北大核心
1998年第1期34-36,共3页
Laser Technology
基金
国家模具技术重点实验室资助
关键词
激光熔覆
热膨胀系数
开裂敏感性
laser cladding expansion coefficient cracking sensitivity