Surface Treatments to Improve Fatigue Performance of Age-hardenable CuNi3Si1 Mg

Author:  M.Gholami, I. Altenberger, M. Mhaede, Y. Sano and L. Wagner
Source:  Conf Proc 2014: ICSP-12 Goslar, Germany (pgs.208-213)
Doc ID:  2014077
Year of Publication:  2014
Abstract:  
In present work, the fatigue performance of CuNi3SiMg alloy has been studied after thermomechanical processing and mechanical surface treatment of laser peening (LP) and shot peening (SP). It was observed that fatigue behavior can be improved by a uniform distribution of small-sized precipitates. After LP and SP, the changes in the surface and near-surface layer treated samples could improve fatigue performance by about 70 MPa compared to the electropolished condition.