马莉,王毛球,徐香秋,王连海,赵亚平,董瀚

• 1:钢铁研究总院先进钢铁材料技术国家工程研究中心
• 2:中国第一汽车集团公司技术中心
• 3:抚顺特殊钢股份有限公司
• 4:宝山钢铁股份有限公司特殊钢分公司制造部

摘要(Abstract)：

研究了Nb-B微合金化20CrMoH渗碳齿轮钢的奥氏体晶粒长大规律及微合金化对其淬透性的影响。结果表明,添加0.04%Nb可以有效地细化奥氏体晶粒,并且在1050℃奥氏体化10h无混晶现象。此外,添加0.0008%B能够明显提高钢的淬透性,使淬透性不因晶粒细化及Nb(C,N)析出而降低。

关键词(KeyWords)： 齿轮钢;微合金化;晶粒尺寸;淬透性

Abstract:

Keywords:

基金项目(Foundation): 国家“863”计划(2006AA03Z526)

作者(Author): 马莉,王毛球,徐香秋,王连海,赵亚平,董瀚

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