赵秀明,毛向阳,蔡璐,张进,余永兵,惠卫军

• 1:南京工程学院材料工程学院
• 2:南京汽车锻造有限公司
• 3:钢铁研究总院
• 4:先进钢铁材料技术国家工程研究中心

摘要(Abstract)：

研究了锻后控冷工艺对中碳含钒微合金38MnVS非调质钢锻件晶内铁素体形成的影响,对锻后不同控冷工艺条件下微合金非调质钢锻件的显微组织、拉伸性能、冲击韧性和冲击断口进行了试验分析。结果表明,在正常的锻造加热温度(1180~1200℃)和终锻温度(1000~1050℃)条件下,采用锻后快冷并在550℃左右保温缓冷的工艺条件,可抑制先共析铁素体沿原奥氏体晶界的析出,获得较多细小条、块状的晶内铁素体,微合金钢锻件的冲击韧性提高了近4倍,同时仍具有较高的强度,且塑性略有提高。

关键词(KeyWords)： 38MnVS微合金钢;晶内铁素体;冲击韧性

Abstract:

Keywords:

基金项目(Foundation): 南京市科技计划项目(201103041);; 南京工程学院基金项目(KXJ08135,YKJ201008);; 江苏省高校科研成果产业化推进项目(JHB2011-25)

作者(Author): 赵秀明,毛向阳,蔡璐,张进,余永兵,惠卫军

DOI: 10.13289/j.issn.1009-6264.2013.11.022

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