Effect of Optimization of Shot Peening Parameters on Surface Integrity of NAK80

摘要：

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.

关键词： shot peening over peening effect surface integrity

作者: H.Miao D.W.Zuo H.F.Wang X.W.Sha

作者单位: Jiangsu Key Laboratory of Precision and MicroManufacturing Technology,NUAA,Nanjing,210016,China

会议类型: 国际会议

会议名称: The 3rd Conference of Cross-Strait Engineering Education and Ceeusro & 1st International Conference on Engineering Technologies and Ceeusro(ICETC2009)(第三届工程技术与产学研研讨会暨第一届国际功能制造技术学术会议)

会议地点: 常州

会议语种:英文

页码: 537-539

在线出版日期: 2009-11-19（万方平台首次上网日期，不代表论文的发表时间）