Retained Austenite Reduction near Fracture Surface in Repeatedly Quenched SUJ2 Steel

• DOI: 10.4028/p-88h5mt
• Publication Date: 2022-07-29T13:59:13Z
• Authors: Shunsuke Kita; Yoshiki Takezawa; Koshiro Mizobe; Katsuyuki Kida
• Keywords: 0203 mechanical engineering; 02 engineering and technology

High-carbon high-strength JIS-SUJ2 bearing steel is an alloy having the characteristics of high wear resistance and fatigue strength as a result quenching. When this kind material exposed to long-lasting low stress application loadings, fisheye fractures can often be seen. In research, we measured retained austenite near fracture surface in JIS-SUJ2. After measurement, confirmed decrease vertical under both ductile fracture.