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金属学报  2011, Vol. 47 Issue (12): 1483-1489    DOI: 10.3724/SP.J.1037.2011.00514
  论文 本期目录 | 过刊浏览 |
先进超高强度-高塑性Q-P-T钢
戎咏华
上海交通大学材料科学与工程学院, 上海 200240
ADVANCED Q–P–T STEELS WITH ULTRAHIGH STRENGTH–HIGH DUCTILITY
RONG Yonghua
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240
引用本文:

戎咏华. 先进超高强度-高塑性Q-P-T钢[J]. 金属学报, 2011, 47(12): 1483-1489.
. ADVANCED Q–P–T STEELS WITH ULTRAHIGH STRENGTH–HIGH DUCTILITY[J]. Acta Metall Sin, 2011, 47(12): 1483-1489.

全文: PDF(899 KB)  
摘要: 首先论述从淬火-分配(Q&P)工艺发展起来的淬火-分配-回火(Q-P-T)工艺以及两者的差异, 总结Q-P-T钢从超高强度到高强塑性的发展,对比先进新型Q-P-T工艺和传统淬火-回火(Q-T)工艺的差异及其对钢力学性能的不同影响, 重点讨论在形变中残留奥氏体对超高强钢塑性增强的微观机制, 为先进高强钢的进一步发展提供组织设计和控制的理论指导.
关键词 淬火-分配-回火(Q-P-T)工艺 超高强度-高塑性 残留奥氏体 微观机制    
Abstract:The quenching–partitioning–tempering (Q–P–T) process was developed from quenching & partitioning (Q&P) process and their difference are first described in this paper. The development of Q–P–T steels from ultrahigh strength to high strength–ductility is summarized. Novel Q–P–T process and conventional quenching–tempering (Q–T) process and their different effects on mechanical properties are compared. The micro–mechanism of the ductility enhancement from retained austenite in unltrahigh strength steels during deformation is emphasized in discussion, which is as a theoretical direction of microstructural design and control on the further development of advanced high strength steels.
Key wordsquenching–partitioning–tempering (Q–P–T) process    ultrahigh strength–high ductility    retained austenite    micro–mechanism
收稿日期: 2011-08-08     
基金资助:

国家自然科学基金重点资助项目51031001

作者简介: 戎咏华, 男, 1950年生, 教授
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