|
|
|
| Effect of Alloying Elements (Sb, B) on Recrystallization and Oxidation of Mn-Containing IF Steel |
| ZHANG Ya-long1,ZHANG Ying-yi1,YANG Fei-hua2,ZHANG Zuo-tai1 |
1. Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871,China
2. Beijing Building Materials Academy of Sciences Research, Beijing 100041, China |
|
|
|
|
Abstract The effects of minor alloying elements (antimony, boron) on the recrystallization and oxidation of Mn-containing interstitial free (IF) steels were investigated using confocal scanning laser microscope (CSLM) under controlled atmosphere of 95% Ar and 5% H2 (volume percent) at different temperatures. The results indicated that oxidation and recrystallization were primarily controlled by the grain boundaries, which moved due to release of the stored energy or acted as the fast path diffusion of alloying elements. It was found that the addition of antimony suppressed both surface oxidation and internal oxidation, whereas boron addition accelerated surface oxidation but decreased internal oxidation. The reasons caused were that the alloying elements of antimony or boron were known to segregate on the surfaces or grain boundaries to occupy the surface adsorption sites, which were expected to be less catalytic than bare iron on the transportation of alloying elements. The recrystallization was also retarded through adding minor antimony and boron elements. The oxidation kinetics of formation of grain boundary oxides were studied through calculating the areas along grain boundaries, and it was found that the areas parabolically increased with increasing time.
|
|
Received: 29 August 2011
Published: 02 April 2013
|
|
Corresponding Authors:
ZHANG Zuo-Tai
E-mail: zuotaizhang@coe.pku.edu.cn
|
|
|
|
| [1] |
Zong-ye Ding,Di Zhang,Qiao-dan Hu,,*,Long Zeng,Jian-guo Li,. Constitutive analysis and optimization on hot working parameters of as-cast high Cr ultra-super-critical rotor steel with columnar grains[J]. Chinese Journal of Iron and Steel, 2017, 24(9): 916-924. |
| [2] |
Yu-cheng Lei,,*,Xiao-kai Guo,Hong-xia Chang,Tian-qing Li,,Qiang Zhu,Gang Chen, Long-ren Xiao. Cavitation erosion behavior of CLAM steel weld joint in liquid lead-bismuth eutectic alloy[J]. Chinese Journal of Iron and Steel, 2017, 24(9): 935-942. |
| [3] |
Ying-yi Zhang,Wei Lv,Xue-wei Lv,Chen-guang Bai,Ke-xi Han,Bing Song. Oxidation kinetics of ilmenite concentrate by non-isothermal thermogravimetric analysis[J]. Chinese Journal of Iron and Steel, 2017, 24(7): 678-684. |
| [4] |
Rui Wang,Yan-ping Bao,*,Yi-hong Li,Tai-quan Li,Di Chen. Effect of slag composition on steel cleanliness in interstitial-free steel[J]. Chinese Journal of Iron and Steel, 2017, 24(6): 579-585. |
| [5] |
Yong-xing Jiao,Jian-sheng Liu*,Xing-wang Duan,Xiao-hua Zheng,Wen-wu He. Prediction of critical forging penetration efficiency for 06Cr19Ni9NbN steel by dynamic recrystallization[J]. Chinese Journal of Iron and Steel, 2017, 24(6): 649-653. |
| [6] |
Hong-huan Mao,Xing Qi,Jing Cao,Li-cong An,Yi-tao Yang*. Effect of Si on high temperature oxidation of 30Cr13 stainless steel[J]. Chinese Journal of Iron and Steel, 2017, 24(5): 561-566. |
|
|
|
|
2013, Vol. 20 
