| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7896246 | Corrosion Science | 2013 | 16 Pages |
Abstract
The effect of surface modifications induced by machine hammer peening on pitting corrosion behavior of nickel-base alloy 718 in a 3.5Â wt.% NaCl solution is investigated. Severe work hardening and high compressive residual stress are generated with surface smoothing and microstructure evolution in terms of formation of nano-grains and nano-twins in the near surface region after machine hammer peening. Electrochemical tests results show that machine hammer peening has a beneficial influence on the corrosion resistance, indicated by a significant increase of the critical pitting potential (+134Â mV) accompanied with lower corrosion current density and higher polarization resistance.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Ting Chen, Hendrik John, Jing Xu, Qiuhong Lu, Jeffrey Hawk, Xingbo Liu,