Retained Austenite Reduction near Fracture Surface in Repeatedly Quenched SUJ2 Steel

Shusuke Kita; Yoshiki Takezawa; Koshiro Mizobe; Katsuyuki Kida

doi:10.4028/p-88h5mt

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HomeSolid State PhenomenaSolid State Phenomena Vol. 335Retained Austenite Reduction near Fracture Surface...

Retained Austenite Reduction near Fracture Surface in Repeatedly Quenched SUJ2 Steel

Abstract:

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

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Periodical:

Solid State Phenomena (Volume 335)

Pages:

121-126

DOI:

https://doi.org/10.4028/p-88h5mt

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Online since:

July 2022

Authors:

Shusuke Kita, Yoshiki Takezawa, Koshiro Mizobe*, Katsuyuki Kida

Keywords:

Fatigue, Fisheye, Prior Austenite Grain, Repeated Heating, Repeated Quenching, Retained Austenite, SUJ2

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* - Corresponding Author

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