Laser Remelting of Plasma-Sprayed Tungsten Coatings

被引：16

作者：

Matejicek, Jiri ^{[1
]}

Holub, Petr ^{[2
]}

机构：

[1] Acad Sci Czech Republ, Inst Plasma Phys, Prague 18200, Czech Republic

[2] Indet Safety Syst, Vsetin 75501, Czech Republic

来源：

JOURNAL OF THERMAL SPRAY TECHNOLOGY | 2014年 / 23卷 / 04期

关键词：

functionally graded coatings; laser remelting; plasma facing materials; thermal conductivity; water stabilized plasma;

D O I：

10.1007/s11666-014-0067-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Laser surface melting was applied on plasma-sprayed tungsten coatings, with the aim to eliminate intersplat voids and improve thermal conductivity. A variety of laser parameters was tested and the morphology and melt depth were evaluated. With the most promising conditions, 2D areas were remelted and thermal conductivity was determined. Improvements in conductivity were observed, but the depth of the remelted layer was quite limited under current conditions. Advantages and limitations of this method, as well as possible directions for improvement are discussed.

引用

页码：750 / 754

页数：5

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