Phase Stability of Residual Austenite in 60Si2Mn Steels Treated by Quenching and Partitioning

钢铁研究学报(英文版), 2011, 18(2): 70-74.

^1, , ^2, , ^3, , ^4, , ^5,

1.Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education,Shandong University, Jinan 250061 Shandong, China;School of Materials Science and Engineering,Shandong University, Jinan 250061, Shandong, China

2.Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education,Shandong University, Jinan 250061 Shandong, China;School of Materials Science and Engineering,Shandong University, Jinan 250061, Shandong, China

3.Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education,Shandong University, Jinan 250061 Shandong, China;School of Materials Science and Engineering,Shandong University, Jinan 250061, Shandong, China

4.Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education,Shandong University, Jinan 250061 Shandong, China;School of Materials Science and Engineering,Shandong University, Jinan 250061, Shandong, China

5.Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education,Shandong University, Jinan 250061 Shandong, China;School of Materials Science and Engineering,Shandong University, Jinan 250061, Shandong, China

Phase Stability of Residual Austenite in 60Si2Mn Steels Treated by Quenching and Partitioning

LI Yang ^1, , LU Yu-peng ^2, , WANG Chong ^3, , LI Shi-tong ^4, , CHEN Lu-bin ^5,

Keywords： 60Si2Mn steel

The residual austenite and its stability in commercial 60Si2Mn steel treated by quenching and partitioning (Q-P) were investigated. The Q-P heat treatment was carried out using a system of ordinary electric furnace-oil bath box-electric furnace. Cryogenic treatments at different temperatures were performed to assess the thermal stability of residual austenite. The microstructure, particularly residual austenite, was analyzed using optical microscope and X-ray diffraction (XRD), and the microhardness and Rockwell hardness were measured. The residual austenite with the volume fraction as much as 13. 7% and the HRC hardness level of 41 were achieved, and the residual austenite is relatively stable.

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Phase Stability of Residual Austenite in 60Si2Mn Steels Treated by Quenching and Partitioning

参考文献