HIGH-SPEED LASER CLADDING - SOLIDIFICATION CONDITIONS AND MICROSTRUCTURE OF A COBALT-BASED ALLOY

被引:71
|
作者
FRENK, A
KURZ, W
机构
[1] Department of Materials, Swiss Federal Institute of Technology
关键词
D O I
10.1016/0921-5093(93)90240-F
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Laser cladding experiments with a hypoeutectic Stellite 6 alloy have been performed with scanning speeds ranging from conventional values (1.67 mm s(-1)) up to very fast values (167 mm s(-1)). The evolution of the secondary dendrite arm spacing is discussed using the solidification conditions deduced from a two-dimensional heat flux model and the quaternary Co-Cr-C-W phase diagram.
引用
收藏
页码:339 / 342
页数:4
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