Tribology testing of ultrafine-grained Ti processed by high-pressure torsion with subsequent coating

被引：34

作者：

Wang, Chuan Ting ^{[1
,2
]}

Gao, Nong ^{[2
]}

Gee, Mark G. ^{[3
]}

Wood, Robert J. K. ^{[1
]}

Langdon, Terence G. ^{[2
,4
,5
]}

机构：

[1] Univ Southampton, Natl Ctr Adv Tribol Southampton, Fac Engn & Environm, Southampton SO17 1BJ, Hants, England

[2] Univ Southampton, Fac Engn & Environm, Mat Res Grp, Southampton SO17 1BJ, Hants, England

[3] Natl Phys Lab, Teddington TW16 5PT, Middx, England

[4] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA

[5] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA

来源：

JOURNAL OF MATERIALS SCIENCE | 2013年 / 48卷 / 13期

基金：

美国国家科学基金会; 英国工程与自然科学研究理事会;

关键词：

PURE TITANIUM; MECHANICAL-PROPERTIES; NANOSTRUCTURED TITANIUM; METALLIC BIOMATERIALS; FATIGUE PROPERTIES; WEAR PROPERTIES; MICROSTRUCTURE; ECAP; BEHAVIOR; DEFORMATION;

D O I：

10.1007/s10853-012-7110-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A grade 2 pure Ti was processed by high-pressure torsion (HPT) under 3.0 GPa for 10 revolutions to achieve an improved strength. Wear tests revealed that HPT only slightly improved the wear resistance of pure Ti. Subsequently, a TiN coating with a thickness of 2.5 mu m was deposited on different Ti substrates to improve the wear resistance. Both indentation and scratch testing demonstrated a much improved load-bearing capacity when ultrafine-grained Ti was chosen as the substrate compared with coarse-grained Ti. All results indicate that pure Ti processed by HPT, when combined with a subsequent coating, represents a good candidate material for bio-implant applications.

引用

页码：4742 / 4748

页数：7

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