Strengthening mechanism of hot rolled Ti and Nb microalloyed HSLA steels containing Mo and W with various coiling temperature

被引：121
作者：
Park, Dae-Bum [1 ,2 ]
Huh, Moo-Young [1 ]
Shim, Jae-Hyeok [2 ]
Suh, Jin-Yoo [2 ]
Lee, Kyu-Ho [1 ,2 ]
Jung, Woo-Sang [2 ]
机构：
[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea
[2] Korea Inst Sci & Technol, High Temp Energy Mat Res Ctr, Seoul 136791, South Korea
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 560卷
关键词：
HSLA steel; Complex carbide; Coiling temperature; strengthening mechanism; NANOMETER-SIZED CARBIDES; LOW-ALLOY STEELS; PRECIPITATION; FERRITE;
D O I：
10.1016/j.msea.2012.09.098
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of Mo- and W-addition on the precipitation hardening of Ti- and Nb-microalloyed high-strength low-alloy steels was investigated. The variation in simulated hot-coiling temperature caused a significant difference in strength, which is attributed mainly to different precipitation-hardening behavior. Among the four alloys with different combination of the microalloying elements: Ti-Mo, Nb-Mo, Ti-W, and Nb-W, the steel with Nb-Mo turned out to be the most effective in precipitation hardening. The strengthening mechanism was discussed based on the microstructural evolution observed by electron microscopy and the theoretical considerations combining the different hardening models. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：528 / 534
页数：7
相关论文
共 21 条
[1]  
Bain E.C., 1966, STEEL
[2]   Precipitation hardening of high-strength low-alloy steels by nanometer-sized carbides [J].
Chen, C. Y. ;
Yen, H. W. ;
Kao, F. H. ;
Li, W. C. ;
Huang, C. Y. ;
Yang, J. R. ;
Wang, S. H. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 499 (1-2) :162-166
[3]   SIMULATION OF THE HOT-ROLLING AND ACCELERATED COOLING OF A C-MN FERRITE-BAINITE STRIP STEEL [J].
DEBRAY, B ;
TERACHER, P ;
JONAS, JJ .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1995, 26 (01) :99-111
[4]   CONDITIONS CONTROLLING MATRIX AND STACKING FAULT PRECIPITATION [J].
FROES, FH ;
HONEYCOMBE, RW ;
WARRINGTON, DH .
ACTA METALLURGICA, 1967, 15 (01) :157-+
[5]   Development of high strength hot-rolled sheet steel consisting of ferrite and nanometer-sized carbides [J].
Funakawa, Y ;
Shiozaki, T ;
Tomita, K ;
Yamamoto, T ;
Maeda, E .
ISIJ INTERNATIONAL, 2004, 44 (11) :1945-1951
[6]   Copper bearing microalloyed ultrahigh strength steel on a pilot scale: Microstructure and properties [J].
Ghosh, S. K. ;
Bandyopadhyay, P. S. ;
Kundu, S. ;
Chatterjee, S. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (27) :7887-7894
[7]   Stability of (Ti, M)C (M = Nb, V, Mo and W) carbide in steels using first-principles calculations [J].
Jang, Jae Hoon ;
Lee, Chang-Hoon ;
Heo, Yoon-Uk ;
Suh, Dong-Woo .
ACTA MATERIALIA, 2012, 60 (01) :208-217
[8]  
Kaufman L., 1970, Computer calculation of phase diagrams. With special reference to refractory metals
[9]   Influence of Mo on precipitation hardening in hot rolled HSLA steels containing Nb [J].
Lee, WB ;
Hong, SG ;
Park, CG ;
Kim, KH ;
Park, SH .
SCRIPTA MATERIALIA, 2000, 43 (04) :319-324
[10]   Carbide precipitation and high-temperature strength of hot-rolled high-strength, low-alloy steels containing Nb and Mo [J].
Lee, WB ;
Hong, SG ;
Park, CG ;
Park, SH .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2002, 33 (06) :1689-1698
123