Effect of quenching process on microstructure and properties of 10Cr15MoVCo high-carbon martensitic stainless steel
SUN Chang1, LI Jing1, LI Shou-hui1, ZHU Shuang1, LI Ji-hui2
1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China; 2. Yangjiang Shibazi Group, Yangjiang 529931, Guangdong, China
Abstract：In order to obtain 10Cr15MoVCo high-carbon martensitic stainless steel with good organization and properties, the effects of quenching temperatures and soaking time on the microstructure and mechanical properties of experimental steel were analyzed by scanning electron microscopy, X-ray diffraction, rockwell hardness tester and impact testing machine. The results show that with the increase of quenching temperature, the average size and area fraction of secondary carbides decrease and the retained austenite content increases, and the hardness of the steel first increases and then decreases. After the quenching temperature exceeds 1 050 ℃, the impact toughness decreases significantly, and the optimum quenching temperature is 1 050 ℃. At the optimum quenching temperature, the average size and area fraction of secondary carbides decrease and the residual austenite content increases slightly with the increase of soaking time. The hardness of the steel first increases and then decreases, but the overall change is small. The impact toughness increases with the increase of soaking time, and the optimum soaking time is 15 min.
孙畅, 李晶, 李首慧, 朱爽, 李积回. 淬火工艺对高碳马氏体不锈钢10Cr15MoVCo组织及性能的影响[J]. 中国冶金, 2023, 33(4): 73-80.
SUN Chang, LI Jing, LI Shou-hui, ZHU Shuang, LI Ji-hui. Effect of quenching process on microstructure and properties of 10Cr15MoVCo high-carbon martensitic stainless steel[J]. China Metallurgy, 2023, 33(4): 73-80.
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2023, Vol. 33 
