Wear resistance of NiTi alloy after surface mechanical attrition treatment
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 506-510 |
| Journal / Publication | Surface and Coatings Technology |
| Volume | 205 |
| Issue number | 2 |
| Publication status | Published - Oct 2010 |
Link(s)
Abstract
An ultrafine grain layer consisting of nanocrystallites as well as submicrometer grains is produced on NiTi shape memory alloy by surface mechanical attrition treatment (SMAT) and the effects of the ultrafine grain layer on the tribological properties are investigated under dry sliding conditions. Compared to the coarse grain (CG) NiTi, the SMAT NiTi has smaller friction coefficients and improved wear resistance at applied loads from 5 to 15. N due to the grain refinement effect. Examination of the worn surfaces indicates that materials delamination and particles co-exist on both the CG and SMAT NiTi samples. Our results indicate that delamination is the main wear mechanism on CG NiTi whereas abrasive particles dominate the wear process on SMAT NiTi. © 2010 Elsevier B.V.
Research Area(s)
- Grain refinement, Nickel titanium shape memory alloy (NiTi SMA), Surface mechanical attrition treatment (SMAT), Ultrafine grain, Wear resistance
Citation Format(s)
Wear resistance of NiTi alloy after surface mechanical attrition treatment. / Hu, T.; Wen, C. S.; Sun, G. Y. et al.
In: Surface and Coatings Technology, Vol. 205, No. 2, 10.2010, p. 506-510.
In: Surface and Coatings Technology, Vol. 205, No. 2, 10.2010, p. 506-510.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
