Laser shock peening enhanced corrosion properties in a nickel based Inconel 600 superalloy
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- 作者：D. Karthik karthik25587@gmail.com ; S. Swaroop ; n.r.sathya.swaroop@gmail.com
- 关键词：Laser peening ; Inconel 600 ; Residual stresses ; Hardness ; Roughness ; Pitting corrosion
- 刊名：Journal of Alloys and Compounds
- 出版年：2017
- 出版时间：15 February 2017
- 年：2017
- 卷：694
- 期：Complete
- 页码：1309-1319
- 全文大小：3515 K
- 卷排序：694
文摘
Laser peening induced residual stresses reached −672 MPa (maximum) and 0 MPa (1400 μm from surface). Work-hardening up to a depth of 400 μm. Roughness of ≤1 μm resulted in peened surface with column or steps like feature. Corrosion rate decreased about 106 times at laser peened surface. XPS results indicate a better passivation at laser peened surface.