TY - JOUR
T1 - Competitive effect of residual stress and surface roughness on the fatigue life of shot peened S42200 steel at room and elevated temperature
AU - Fan, Kaifa
AU - Liu, Daoxin
AU - Liu, Yanjie
AU - Wu, Junnan
AU - Shi, Hailan
AU - Zhang, Xiaohua
AU - Zhou, Kai
AU - Xiang, Junfeng
AU - Abdel Wahab, Magd
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/5
Y1 - 2023/5
N2 - The effect of shot peening (SP) on the fatigue life of S42200 steel at room and elevated temperature is investigated. The fatigue test is carried out on a high temperature rotating bending tester. Surface integrity characterization is used to study the effect of SP on surface properties. Furthermore, Finite Element Method (FEM) combined with a fatigue damage model, namely Zheng Equation, is proposed to predict the fatigue life. The results show that SP effectively improves the fatigue life of S42200 steel under all temperatures. However, at lower temperature, higher strength SP leads to higher fatigue resistance, while at higher temperature, lower strength SP leads to higher fatigue resistance. This can be explained by the competitive effect of surface roughness and compressive residual stress (CRS) relaxation on the local stress concentration. This research can be a good guide to the application of SP at different temperatures.
AB - The effect of shot peening (SP) on the fatigue life of S42200 steel at room and elevated temperature is investigated. The fatigue test is carried out on a high temperature rotating bending tester. Surface integrity characterization is used to study the effect of SP on surface properties. Furthermore, Finite Element Method (FEM) combined with a fatigue damage model, namely Zheng Equation, is proposed to predict the fatigue life. The results show that SP effectively improves the fatigue life of S42200 steel under all temperatures. However, at lower temperature, higher strength SP leads to higher fatigue resistance, while at higher temperature, lower strength SP leads to higher fatigue resistance. This can be explained by the competitive effect of surface roughness and compressive residual stress (CRS) relaxation on the local stress concentration. This research can be a good guide to the application of SP at different temperatures.
KW - Compressive residual stress
KW - Fatigue
KW - Finite element model
KW - Shot peening
KW - Stress intensity factor
UR - http://www.scopus.com/inward/record.url?scp=85150414379&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2023.108422
DO - 10.1016/j.triboint.2023.108422
M3 - 文章
AN - SCOPUS:85150414379
SN - 0301-679X
VL - 183
JO - Tribology International
JF - Tribology International
M1 - 108422
ER -