杜忠泽,路超,王庆娟,王敬忠,朱晓雅,周民

• 1:西安建筑科技大学冶金工程学院

摘要(Abstract)：

采用Gleeble 3500热模拟实验机研究了G20Cr Ni2Mo A轴承钢在连续冷却过程中的相变规律,结合膨胀曲线绘制出G20Cr Ni2Mo A钢连续冷却转变曲线,并对不同冷速下显微组织和维氏硬度进行分析。结果表明:在低速冷却时,在两相区先发生铁素体相变,随着冷速的增加,铁素体逐渐减少,基体内残留奥氏体增多,珠光体相变温度区间为600~700℃,贝氏体相变区间主要集中在400~600℃,马氏体转变温度为412℃,当冷速在0.5~5℃/s时,室温下获得贝氏体组织,当冷速大于10℃/s时室温下将获得马氏体组织。

关键词(KeyWords)： 轴承钢;冷却速度;CCT曲线;控制冷却

Abstract:

Keywords:

基金项目(Foundation): 基金项目:陕西省工业科技攻关(2016GY-207)

作者(Author): 杜忠泽,路超,王庆娟,王敬忠,朱晓雅,周民

DOI: 10.13289/j.issn.1009-6264.2017-0209

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