Wear-resistant layered electrospark coatings based on ZrB2

被引：14

作者：

Podchernyaeva, IA ^{[1
]}

Grigor'ev, ON ^{[1
]}

Subbotin, VI ^{[1
]}

Kostenko, AA ^{[1
]}

Isaeva, LP ^{[1
]}

Artemenko, EA ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Problems Mat Sci, UA-252143 Kiev, Ukraine

来源：

POWDER METALLURGY AND METAL CERAMICS | 2004年 / 43卷 / 7-8期

关键词：

electrospark alloying; layered structure; tribological parameters; zirconium diboride;

D O I：

10.1023/B:PMMC.0000048133.84178.97

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have studied the composition and tribological parameters (coefficient of friction and wear rate) of coatings obtained in electrospark alloying (ESA) of steel 45 with the composite ceramic ZrB2 - SiC - B4C based on zirconium diboride. We have shown that layer-by-layer electrospark alloying using Ti-Al -N composites to form an undercoat reduces the coefficient of friction of the coating down to 0.12-0.20 while maintaining a rather low wear level (7-11 mum/km). We have analyzed the effect of the composition of the secondary, structures which are formed during tribo-oxidation under dry friction conditions.

引用

页码：391 / 395

页数：5

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