The formation of coating shrinkage porosity in the process of thermal spraying

被引:15
作者
Sobolev, VV [1 ]
Guilemany, JM [1 ]
机构
[1] UNIV BARCELONA, DEPT CHEM & MET ENGN, E-08028 BARCELONA, SPAIN
关键词
shrinkage porosity; thermal spraying;
D O I
10.1016/0924-0136(95)02100-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The development of shrinkage porosity during thermal spraying is analysed. Equations are presented which describe the kinetics of this porosity formation under the solidification of coating layers of different shapes on account of the shrinkage action. Shrinkage porosity microzones are shown to be formed near crystals of different shapes, and it has been established that these microzones develop in the surface parts of the coating layers. The evolution of porosity parameters is studied. The results obtained agree well with the tendencies of shrinkage porosity behaviour observed experimentally during thermal spraying.
引用
收藏
页码:227 / 232
页数:6
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