ALLOYING AND POST-HEAT-TREATMENT OF THERMAL-SPRAYED COATINGS OF SELF-FLUXING ALLOYS

被引：26
|
作者：
SHIEH, YH [1 ]
WANG, JT [1 ]
SHIH, HC [1 ]
WU, ST [1 ]
机构：
[1] NATL TSING HUA UNIV,DEPT MAT SCI & ENGN,HSINCHU 300,TAIWAN
来源：
SURFACE & COATINGS TECHNOLOGY | 1993年 / 58卷 / 01期
关键词：
D O I：
10.1016/0257-8972(93)90176-O
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The hardness and wear resistance of a thermal-sprayed self-fluxing alloy (Ni-17wt.%Cr-3.3wt.%B-4.3wt.%Si-4.2wt.%Fe-0.9wt.%C) is improved by adding 20 wt.% of B13C2 to the powder and heating the coating at 1030-degrees-C in a vacuum of 10(-2) Torr. Porosity is decreased from 20 to 0.3 vol.% by the heating if a pre-heating at 950-degrees-C is carried out to facilitate the escape of trapped gases. The presence of numerous precipitates of Cr3C2, and CrB in the coating is consistent with a Rockwell hardness of HRC 63. The abrasive wear resistance is much improved compared with that of Stellite 6B.
引用
收藏
页码：73 / 77
页数：5
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