赵征志,尹鸿祥,赵爱民,左茂方,曾尚武,党宁

• 1:北京科技大学冶金工程研究院

摘要(Abstract)：

采用CCT-AY-Ⅱ型钢板连续退火机模拟分析了V元素添加对TRIP800钢组织性能的影响规律。采用SEM和TEM等微观分析方法观察含钒与不含钒TRIP的微观组织,利用XRD法测量了残留奥氏体量,实验室测量了其力学性能。结果表明,随着退火温度的升高,试验钢铁素体相比例降低,贝氏体相比例升高,且含钒TRIP钢中有V(C,N)析出。820℃保温时,试验钢均获得最佳的综合力学性能。V元素的添加增加了试验TRIP钢的抗拉强度,而降低了屈服强度,有效降低了TRIP钢屈强比。且含V TRIP钢瞬时加工硬化指数前期大于无V TRIP钢,后期则小于无V TRIP钢。

关键词(KeyWords)： TRIP钢;亚稳奥氏体;两相区退火;加工硬化;钒微合金化

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50904006);; 中央高校基本科研业务费专项资金(FRF-TP-10-001A);; 教育部博士学科点专项科研基金(20110006110007)

作者(Author): 赵征志,尹鸿祥,赵爱民,左茂方,曾尚武,党宁

DOI: 10.13289/j.issn.1009-6264.2014.03.024

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