Thermomechanical fatigue of a 316L austenitic steel at two different temperature intervals
- Tsinghua Univ., Beijing (China). Dept. of Engineering Mechanics
- Academia Sinica, Shenyang (China). State Key Lab. for Fatigue and Fracture of Materials
Many investigations of the fatigue and fracture behavior of 316L austenitic steel at high temperatures have been carried out, because of wide applications of this material in high temperature components in the energy, transport and nuclear industries. However, most of these studies deal with problems under isothermal test conditions, and less attention has been paid to thermomechanical fatigue (TMF) studies in comparison with its great importance in engineering applications. In the scientific literature, a few studies are found concerning the TMF behavior of 316L stainless steel at different temperature ranges. In this paper, total strain-controlled TMF tests were performed in in-phase and out-of-phase forms on an AISI 316L austenitic stainless steel. The mechanics of deformation and damage for TMF is more complex than high temperature low cycle isothermal fatigue, for in thermomechanical fatigue the stress-strain behavior is associated with the mechanical cycles as well as the thermal ones and it is difficult to determine the effect of many variables which influence this behavior. In their study, the influences of temperature interval and the stress-strain response on the crack propagation and microstructural behaviors were investigated.
- OSTI ID:
- 409685
- Journal Information:
- Scripta Materialia, Vol. 35, Issue 9; Other Information: PBD: 1 Nov 1996
- Country of Publication:
- United States
- Language:
- English
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