文献类型：期刊文献

英文题名：Effect of Shot Peening on the Surface Oxidation of P92 Steel in the Steam Environment at 600 °C

作者：Huang, Yuhui[1];Xuan, Fu-Zhen[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Minist Educ, Key Lab Pressure Syst & Safety, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：144

期号：5

外文期刊名：JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME

收录：;EI(收录号：20225213314237);WOS:【SCI-EXPANDED(收录号:WOS:000881468400013)】；

基金：National Natural Science Foundation of China (Grant No. 51875202; Funder ID: 10.13039/501100001809).

语种：英文

外文关键词：shot peening; residual stress; oxidation

摘要：The effect of shot peening on oxidation behavior of P92 steel was investigated under the steam environment of 600 degrees C. Evolution of microstructure, hardness and residual stress under different air pressure of shot peening were discussed. On the shot peened surface, a stable hematite outer layer was detected by using scanning electron microscope (SEM), energy dispersive spectrometer (EDS), and X-ray diffraction (XRD) analysis. The increased oxidation resistance of hematite layer was ascribed to the increased outward diffusion of Cr and the decreased inward diffusion of oxygen. In addition, the role of residual stress in the oxygen diffusion was discussed.