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김찬기(C. K. Kim),박진기(J. G. Park),이승창(S. C. Lee),서창희(C. H. Suh),김동모(D. M. Kim),김영석(Y. S. Kim) 한국소성가공학회 2012 한국소성가공학회 학술대회 논문집 Vol.2012 No.10
In recent, Because of its rustproof property, Stainless steel is widely used in kitchen appliances, building materials, electronics, chemical plants and automobile exhausts. In addition, the utilization of stainless steel for fuel cell application is growing. As the demand for this material increases, it is necessary to study the basic properties of stainless steel such as corrosion resistance, heat transfer, formability, cutting or shearing ability and weld ability. In this study, FLD test and Uniaxial tensile and biaxial tensile test of Stainless steel 304 were performed. R-value and stress-strain curve were obtained. Biaxial tensile tests with cruciform specimen were performed until the breakdown of specimen occurs. The yield surface are made by application of plastic work theory. The results are compared with the theoretical prediction based on the Hill, Mises, Logan-Hosford model.