Physical-mechanical and tribotechnical properties of titanium alloys with Ti–C–Mo–S gradient antifriction coatings

被引：0
|
作者：
V. M. Savostikov
A. I. Potekaev
A. N. Tabachenko
E. F. Dudarev
I. A. Shulepov
机构：
[1] V. D. Kuznetsov Siberian Physical Technical Institute at the National Research Tomsk State University,
[2] Physical Technical Institute of the National Research Tomsk Polytechnic University,undefined
来源：
Russian Physics Journal | 2013年 / 55卷
关键词：
nanostructured; coarse-grained; titanium alloys; plasma-assisted magnetron sputtering; gradient coating; hardness; adhesion; friction coefficient; wear resistance;
D O I：
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中图分类号：
学科分类号：
摘要：
The results of comprehensive investigations of physico-mechanical and tribological properties of (α+β)-titanium alloys with Ti–C–Mo–S antifriction coatings using a coarse-grained VT14 alloy and a nanostructured VT6 alloy as examples are presented. The mechanisms of formation of physico-mechanical and tribological properties of titanium alloys with composite gradient coatings composed of Ti–C–Mo–S, which are deposited by low-temperature magnetron sputtering assisted by gas-discharge plasma treatment are revealed. A significant improvement of the properties of titanium alloys with these coatings is shown. It is found out that hardness of the coatings formed by plasma-assisted magnetron sputtering is higher compared to those deposited by conventional magnetron sputtering. Moreover, adhesion (bonding strength) of these coatings to the substrate is higher. Comparative tribological unlubricated friction tests demonstrated that the average friction coefficient decreased by a factor of 7.9–9.5 and the wear intensity of the surface layer decreased by 2–3 orders of magnitude.
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页码：1056 / 1062
页数：6
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