薛钢,杨澍

• 1:洛阳船舶材料研究所
• 2:洛阳船舶材料研究所 河南洛阳471039
• 3:河南洛阳471039

摘要(Abstract)：

对经不同规范火工处理的热轧铜沉淀强化钢进行了拉伸和冲击试验,采用透射电子显微镜对火工处理前后钢板的微观结构进行了分析。结果表明,峰值温度为850℃、不同冷却方式和处理次数的火工处理均使钢的强度降低、冲击韧性提高,且强韧性的变化幅度随着冷却速度的降低、处理次数的增多而增大;微观结构分析表明在火工处理过程中,α-Fe基体发生回复与再结晶,同时ε-Cu析出颗粒发生粗化,导致强度下降,韧性提高。

关键词(KeyWords)： 铜;沉淀强化;火工处理;强度;冲击韧性

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 薛钢,杨澍

参考文献(References)：

• [1]Czyryca E J.Advances in high strength steel technology for naval hull construction[J].Key Engineering Materials,1993,84-85:491-520.
• [2]Czyryca E J.Development of low-carbon,copper-strengthened HSLA steel plate for naval ship construction[R].ADA224341,1990.
• [3]Weber R A,Somers B R,Kaufmann E J.Low-carbon,age-hardenable steels for use in construction:A Review[R].ADA3190097XSP,1996.
• [4]杨才福,张永权.新一代易焊接高强度高韧性船体钢的研究[J].钢铁,2001,36(11):50-54.YANG Cai-fu,ZHANG Yong-quan.New generation of HSLA steels for naval structures[J].Iron and Steel,2001,36(11):50-54.
• [5]杨才福,苏航,李丽,等.高性能铜沉淀硬化船体钢[J].中国有色金属学报,2004,14(1):211-216.YANG Cai-fu,SU Hang,LI Li,et al.High performance copper-precipitation-hardened ship hull steel[J].The Chinese Journal of Nonferrous Metals,2004,14(1):211-216.
• [6]林慧国,傅代直.钢的奥氏体转变曲线——原理、测试与应用[M].北京:机械工业出版社,1988:227-228.
• [7]Lis A K,Mujahid M,Garcia C I,et al.The role of copper in the aging behavior of HSLA-100 plate steel[A].Gilbert R.Speich Symposium Proceedings:Fundamentals of Aging and Tempering in Bainitic and Martensitic Steel Products[C].Pennsylvania:Iron and Steel Society,Inc,1992:129-138.
• [8]Mujahid M,Lis A K,Garcia C I,et al.HSLA-100 steels:microstructure and properties[J].Key Engineering Materials,1993,84-85:209-236.
• [9]Mujahid M,Lis A K,Garcia C I,et al.HSLA-100 Steels:Influence of aging heat treatment on microstructure and properties[J].Journal of MaterialsEngineering and Performance,1998,7(2):247-257.

文章评论(Comment)：