GCr15轴承钢球化退火工艺的模拟试验  

Simulation Test on Spheroidizing Annealing Process of GCr15 Bearing Cteel

作　　者：陈敏 CHEN Min(Jiangyin Xingcheng Special Steel Works Co.Ltd.,Jiangyin 214429,China)

机构地区：[1]江阴兴澄特种钢铁有限公司,江苏江阴214429

出　　处：《山东冶金》2022年第1期57-58,61,共3页Shandong Metallurgy

摘　　要：通过对高碳铬轴承钢GCr15采用不同的实验室球化退火工艺进行模拟试验研究,分析不同的球化退火工艺对GCr15轴承钢球化组织及碳化物带状的影响,以寻求GCr15轴承钢最优的球化退火工艺。试验结果表明:在保证GCr15能够球化的前提下,在奥氏体化温度的保温时间越短,从奥氏体化温度到等温温度的冷却速度越快,相对应的GCr15轴承钢球化组织越细化,且碳化物带状控制越好。In this paper, the high carbon chromium bearing steel GCr15 is simulated by different laboratory spheroidizing annealing processes, and the effects of different spheroidizing annealing processes on spheroidizing structure and carbide banding of GCr15 bearing are analyzed, so as to seek the best spheroidizing annealing process for GCr15 bearing steel. The test results show that on the premise of ensuring the spheroidization of GCr15, the shorter the holding time at the austenitizing temperature, the faster the cooling rate from the austenitizing temperature to the isothermal temperature, the finer the spheroidization structure of the corresponding GCr15 bearing steel, and the better the control of carbide banding.

关 键 词：GCR15轴承钢 球化退火 模拟试验 球化组织 碳化物带状 

分 类 号：TG156.2[金属学及工艺—热处理]