Affiliation:
1. Nanjing University of Aeronautics and Astronautics
Abstract
Shot peening is known to improve the fatigue performance of materials. The improvement in fatigue is that plastic deformation in the surface increases hardness, yield stress and microstrain of thinning Crystal block and dislocation density, and formed advantaged compress residual stress that are introduced into the near-surface of the components and which hinder crack initiation and growth. But over peening effect is produced when shot peening strengthening goes beyond a certain limit, which was adverse to improve surface quality. This paper adopted the optimization of the critical peening parameters to avoid appearing over peening effect. The experimental result showed that arc high value of optimal shot peening was 0.40mm.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference7 articles.
1. Y.S. Liao, H.M. Lin, Y.C. Chen: International Journal of Machine Tools & Manufacture, 2007, 47: 1667-1676.
2. A.L. Yerokhin, X. Nie, A. Leyland: Surf. Coat. Technol, 1999, 122: 73.
3. Y.K. Gao, X.B. Li, Q.X. Yang: Materials Letters. 2007, 61: 466-469.
4. C. Giummarra, H.R. Zonker: Proceedings ICAF, (2005).
5. G.D. Zhang, C.Y. Zhou, J. L Zhang: Acta Metallurgica Sinica, 2007, 10(44): 1271-1276.
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献