Effect of Bearing Mode on Martensite Phase Transformation and Mechanical Property of Constructional Stainless Steel Material
P. Chen†*, Y. Su‡ , & F. Massardo§
†School of Architecture, North China University of Water Resources and Electric Power, China, ‡Zhengzhou Institute of Aeronautical Industry Management, China, §Thermochemical Power Group, University of Genova, DiMSET, Italy
ABSTRACT: This paper studies martensite phase transformation law and mechanical property change of constructional austenitic stainless steel at different temperature ranges and different bearing modes. The results show that if drop-down loading bearing is adopted for experiment, unloading can promote austenite deformation, which causes martensite phase transformation, nucleation growth and enhanced strain hardening of material, delaying material fracture and necking. In different temperature ranges, influence of different bearing modes on mechanical property of the specimen varies.
Keywords : Austenitic Stainless Steel; Bearing Mode; Martensite; Drop-Down Loading; Phase Transformation Law.