Effect of composition and pre-deformation on age hardening response in a copper-containing interstitial free steel

被引:12
作者
Rana, R. [1 ]
Singh, S. B. [2 ]
Mohanty, O. N. [2 ]
机构
[1] Rhein Westfal TH Aachen, Dept Ferrous Met, D-52072 Aachen, Germany
[2] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India
关键词
interstitial free steel; copper alloying; pre-deformation; dislocation density; age hardening;
D O I
10.1016/j.matchar.2007.08.008
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of composition and a wide range of pre-deformation on the ageing response of a promising high strength copper-containing interstitial free steel has been studied. It has been observed that higher amount of copper and the addition of Ni, P and B improve the hardening potential and accelerate the copper precipitation kinetics. Pre-deformation also affects the copper precipitation in a similar way. It has been shown that the fastest precipitation kinetics and the dominance of recovery over ageing in a pre-deformed material correspond to a critical amount of pre-deformation. (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码:969 / 974
页数:6
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