Laser enhanced thermal spray coatings

被引：0
|
作者：
Loganathan, V [1 ]
Jenkins, CH [1 ]
Allen, C [1 ]
Sears, JW [1 ]
机构：
[1] S Dakota Sch Mines & Technol, Adv Mat Proc Ctr, Rapid City, SD 57701 USA
来源：
POWDER MATERIALS: CURRENT RESEARCH AND INDUSTRIAL PRACTICES III | 2003年
关键词：
laser glazing; thermal spraying; spalling failure;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The objective of this project was to develop a process for improving the bond characteristics of thermal spray coatings. The method under study here is laser surface glazing. Thermal spray coatings in this case are used to impart a wear resistant surface on stainless steel substrates. For this study, chrome-carbide coatings on stainless steel were evaluated. The as-sprayed chrome-carbide coatings do not form a metallurgical bond, and are therefore susceptible to impact damage and delamination. After laser glazing the sprayed coating, a metallurgical bond is generated producing a more robust surface. The resultant hardness of the laser-glazed surface was greater than the as-sprayed coating.
引用
收藏
页码：239 / 245
页数：7
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