衣海龙,韦弦,王宏,赵连瑞

• 1:安阳钢铁集团有限责任公司
• 2:东北大学轧制技术及连轧自动化国家重点实验室

摘要(Abstract)：

通过热处理工艺实验及SEM与TEM组织观察,研究了不同淬火及回火工艺对碳锰钢与中锰钢组织和性能的影响。结果表明,提高锰含量显著降低了实验钢的Ac1和Ac3温度,缩小了两相区范围;随着淬火温度的升高,实验钢的屈服强度、抗拉强度有所降低;随着回火时间的增加,实验钢的冲击功升高;碳锰钢与中锰钢最优淬火温度分别为800~900℃和750~800℃,其屈服强度、抗拉强度分别为818、847和820、878 MPa,-40℃的冲击功在200 J左右,均具有良好的综合性能,中锰钢具有低成本、高强度及高韧性的综合优势。两种实验钢均可获得细小均匀的马氏体组织,马氏体板条束交错分布,随着回火时间的增加,实验钢中大尺寸碳化物的数量有所降低。

关键词(KeyWords)： 淬火工艺;回火工艺;中锰钢;冲击功

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51104046,51674079)

作者(Author): 衣海龙,韦弦,王宏,赵连瑞

DOI: 10.13289/j.issn.1009-6264.2016.12.018

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