Effect of silicon on the kinetics of Nb(C, N) precipitation during the hot working of Nb-bearing steels

被引：33

作者：

Dong, JX

Siciliano, F

Jonas, JJ

Liu, WJ

Essadiqi, E

机构：

[1] McGill Univ, Dept Engn Met, Montreal, PQ H3A 2B2, Canada

[2] Canada Ctr Mineral & Energy Technol, Mat Technol Lab, Ottawa, ON K1A 0G1, Canada

来源：

ISIJ INTERNATIONAL | 2000年 / 40卷 / 06期

关键词：

Nb microalloyed steels; Nb(C; N); precipitation; Si additions; PTT curves; solubility product;

D O I：

10.2355/isijinternational.40.613

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The effect of Si on the rate of Nb(C, N) precipitation was investigated by using fractional softening measurements. Compression specimens, with diameters of 7.6 mm and lengths of 11.4 mm, were prepared from four Nh microalloyed steels containing a range of Si concentrations from 0.01 mass% to 0.41 mass%. Double-hit compression tests, with a strain of 0.3 for each pass and a strain rate of 6.1/sec., were employed. A solution heat treatment was applied immediately prior to each test. It was found that the rate of Nb(C,N) precipitation in hot deformed austenite increases with Si concentration. This phenomenon is attributed to the increases in the activities of C and N that result from Si addition.

引用

页码：613 / 618

页数：6

共 50 条

[41] A mathematical model for Nb(C, N) precipitation kinetics in austenite controlled both by chemical and interfacial energy [J].

Okamoto, R ;

Suehiro, M .

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1998, 84 (09) :650-657

[42] Modelling strain-induced precipitation kinetics of Nb (C, N) by symbolic regression machine learning [J].

Gao, Zhiwei ;

Wu, Siwei ;

Li, Xin ;

Zhou, Xiaoguang ;

Cao, Guangming ;

Liu, Zhenyu .

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2025, 35 :1712-1721

[43] The influence of N on hot ductility of V-, Nb-, and Nb-Ti- containing steels using improved thermal simulation of continuous casting [J].

Banks, K. M. ;

Tuling, A. ;

Mintz, B. .

JOURNAL OF THE SOUTHERN AFRICAN INSTITUTE OF MINING AND METALLURGY, 2011, 111 (10) :711-716

[44] Modeling of strain-induced precipitation kinetics and evolution of austenite grains in Nb microalloyed steels [J].

Zhou Xiao-guang ;

Liu Zhen-yu ;

Yuan Xiang-qian ;

Wu Di ;

Wang Guo-dong ;

Liu Xiang-hua .

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2008, 15 (03) :65-69

[45] Modeling of Strain-Induced Precipitation Kinetics and Evolution of Austenite Grains in Nb Microalloyed Steels [J].

ZHOU Xiaoguang LIU Zhenyu YUAN Xiangqian WU DiWANG Guodong LIU XianghuaState Key Laboratory of Rolling Technology and Automation Northeastern University Shenyang Liaoning China .

JournalofIronandSteelResearch(International), 2008, (03) :65-69

[46] Modeling of Strain-Induced Precipitation Kinetics and Evolution of Austenite Grains in Nb Microalloyed Steels [J].