Journal
TRIBOLOGY LETTERS
Volume 45, Issue 1, Pages 59-66Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11249-011-9862-y
Keywords
Titanium; Nanocrystalline metals; Sliding wear; Surface mechanical attrition treatment (SMAT)
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Funding
- Alfred Deakin Postdoctoral Research Fellowship
- National Natural Science Foundation of China [51004055]
- Natural Science Foundation of Yunnan province, China [2008CD201]
- Cultivate objects for Technology Innovation Talents of Yunnan Province [2009CI081]
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Surface mechanical attrition treatment (SMAT), a novel surface severe plastic deformation method, was carried out for titanium (Ti) to create a gradient-structured Ti (SMAT Ti). The tribological behaviour was studied under different loads and dry sliding conditions. The results showed that the deformation layer of SMAT Ti was about 160 mu m. The friction and wear results showed that the wear resistance of SMAT Ti was enhanced compared to the coarse-grained (CG) counterpart. SMAT Ti showed abrasive wear under 1 and 5 N, and exhibited abrasive and adhesive wear under 2 N. While CG Ti showed abrasive and adhesive wear under 1-2 N, and exhibited abrasive wear under 5 N for the work hardening effects.
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