高纯净GCr15轴承钢组织演变与快速球化工艺的研究
闫文凯 杨卯生 等
钢铁研究总院结构材料研究所
Microstructure evolution and rapid spheroidizing technology of high-purity of GCr15 bearing steel
摘要 摘要：本文研究了高纯净GCr15轴承钢预备组织与退火工艺对碳化物球化质量的影响；利用碳化物的金相形貌、数量、大小、分布及圆整度表征试验钢的球化质量。实验表明，优良的预备组织适宜的退火制度有利于碳化物在短时间内球化和细化，采用文中退火制度c，GCr15轴承钢圆整度为0.087、平均粒径为0.27μm，球化时间比传统工艺减少3.5h。
Abstract ：Abstract:The paper studies that both the high-purity of GCr15 Bearing Steel tissue preparation and annealing process have an effect on carbide spheroidizing quality. it can get spherodization by carbide metallographic morphology,number,size,distribution and the roundness characteristics of the carbide quality. Using annealing schedule c of this paper, the GCr15 Bearing Steel roundness of 0.087, with an average particle size of 0.27μm, the spherodization of time shorter than the traditional process 3.5 hours
收稿日期: 2010-01-26
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2010, Vol. 45 
