周占明,唐荻,赵征志,袁洪涛,何青

• 1:北京科技大学钢铁共性技术协同创新中心
• 2:北京科技大学工程技术研究院

摘要(Abstract)：

采用OM、SEM、XRD等实验方法,对不同固溶温度下Fe-22.8Mn-8.48Al-0.86C低密度钢的组织演变规律和力学性能进行了研究。结果表明,固溶处理对实验钢的组织与性能影响较大,实验钢晶粒尺寸随固溶温度的升高而增大,抗拉强度随着固溶温度的升高而降低。在1100℃固溶处理1 h后,实验钢具有最佳的强塑性配合,抗拉强度为757.4 MPa,断后伸长率为68.0%,强塑积可达51.5 GPa·%,计算得出Fe-22.8Mn-8.48Al-0.86C钢的密度为6.9 g/cm~3。

关键词(KeyWords)： 低密度钢;奥氏体;固溶温度;力学性能;强塑积

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51371032)

作者(Author): 周占明,唐荻,赵征志,袁洪涛,何青

DOI: 10.13289/j.issn.1009-6264.2017-0225

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