LASER CLADDING OF HIGH-TEMPERATURE COATINGS

被引：28

作者：

DEDAMBORENEA, J

VAZQUEZ, AJ

机构：

[1] Centro Nacional de Investigaciones Metalúrgicas (CENIM), Madrid, E-28040

来源：

JOURNAL OF MATERIALS SCIENCE | 1993年 / 28卷 / 17期

关键词：

D O I：

10.1007/BF00414271

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The processing and microstructural characteristics of nickel-based superalloys obtained by high-power laser surface cladding were studied. The processing variables were laser power, scan velocity and the composition of the feeder powder. The initial compositions consisted of a mixture of NiCrAl (71/18/11% by weight) and NiCrAl plus zirconium oxide composite (66/16/12/4% by weight). Following the process, the clad layers were characterized using analytical tools such as optical and scanning electron microscopy and thickness, substrate/coating interface, cracks and their hardness.

引用

页码：4775 / 4780

页数：6

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