Effects of ultrasonic nanocrystal surface modification (UNSM) on the very high cycle fatigue response of AISI 310 stainless steel have been investigated. The higher impact force used in UNSM treatment showed a higher fatigue life improvement. The fatigue life improvement was higher in crack initiation from the surface of specimens. The subsurface crack initiation depth in the alloy increased with increase in the fatigue failure cycles. It was concluded that UNSM treatment can increase the life of the alloy significantly up to very high cycle fatigue.
|Number of pages||12|
|Journal||Fatigue & Fracture of Engineering Materials & Structures|
|Early online date||15 Jan 2016|
|Publication status||Published - Apr 2016|
Bibliographical noteThis is the peer reviewed version of the following article: Khan, M. K. , Liu, Y.J. , Wang, Q.Y. , Pyun, Y.S. and Kayumov, R. (2016) Effect of ultrasonic nanocrystal surface modification on the characteristics of AISI 310 stainless steel up to very high cycle fatigue. Fatigue & Fracture of Engineering Materials & Structures, volume 39 (4): 427–438, which has been published in final form at http://dx.doi.org/10.1111/ffe.12367. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
- crack initiation
- subsurface cracks
- surface hardness
- ultrasonic nanocrystal surface modification
- very high cycle fatigue