Structural and phase transformations on spark-laser coatings under fretting corrosion in air

被引：0
|
作者：
V. M. Panashenko
I. A. Podchernyaeva
A. I. Dukhota
A. D. Panasyuk
机构：
[1] National Academy of Sciences of Ukraine,Frantsevich Institute for Problems of Materials Science
来源：
Powder Metallurgy and Metal Ceramics | 2012年 / 51卷
关键词：
laser–spark coating; zirconium diboride; fretting; tribofilm; structure and phase transformations;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The structure and phase transformations on the surface of a ZrB2-based combined laser–spark coating on titanium alloy are studied. The transformations are induced by triboprocesses under fretting corrosion in air. It is shown that the surface transformations result from a combination of three mechanisms: plastic deformation (surface texturing, fatigue, crack formation, brittle fracture); oxygen diffusion from the environment, chemical reactions of tribooxidation, diffusion of substrate elements (Al) toward the wear surface; and removal of particles from the surface. Two-phase nanostructured eutectic is found on the wear surface of the combined coating.
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页码：112 / 120
页数：8
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