Effects of pulse magneto-oscillation on GCr15 bearing steel continuous casting billet

被引：8

作者：

Liu, Yan-jie ^{[1
,2
]}

Xu, Guo-dong ^{[3
]}

Wang, Ying-chun ^{[4
]}

Zhong, Hong-gang ^{[1
,2
]}

Li, Li-juan ^{[2
]}

Wang, Biao ^{[2
]}

Zhai, Qi-jie ^{[2
]}

机构：

[1] Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China

[2] Shanghai Univ, Ctr Adv Solidificat Technol, Shanghai 200444, Peoples R China

[3] China Baowu Steel Grp Corp, Res Inst, Shanghai 200431, Peoples R China

[4] China Baowu Steel Grp Corp, Steel Plant, Shanghai 200431, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2022年 / 29卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Bearing steel; Numerical simulation; Thermal simulation; Pulse magneto-oscillation; SOLIDIFICATION STRUCTURE; PURE ALUMINUM; REFINEMENT; INCLUSIONS; FATIGUE; FIELD; AL;

D O I：

10.1007/s42243-021-00706-y

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Pulse magneto-oscillation (PMO) added during solidification could affect the solidification structure and macrosegregation. A modified thermal simulation equipment was applied to prepare GCr15 bearing steel continuous casting billets with different PMO peak currents. Then, metallographic analysis, component analysis and numerical simulation were adopted to study the influence of PMO peak current and its mechanism. The sample with 150 K(I)A PMO peak current treatment has little difference with the samples without PMO treatment on solidification structure and macrosegregation. As the peak currents are 250 and 350 K(I)A, the columnar zone increases and macrosegregation aggravated. When 450 K(I)A peak current is selected, the equiaxed grain ratio is enlarged, and the dendritic grains are refined, and the macrosegregation of C, Cr, Si and Mn is decreased significantly. By analyzing, different convections induced by PMO with various peak currents are the key factor to change the solidification structure and macrosegregation.

引用

页码：144 / 150

页数：7

共 32 条

[1] Improvement of centre segregation in continuous casting bloom and the resulting carbide homogeneity in bearing steel GCr15 [J].

An, Hanghang ;

Bao, Yanping ;

Wang, Min ;

Yang, Quan ;

Huang, Yongsheng .

IRONMAKING & STEELMAKING, 2019, 46 (09) :896-905

[2] Experimental and Numerical Simulations of the Solidification Process in Continuous Casting of Slab [J].

Bai, Liang ;

Wang, Bo ;

Zhong, Honggang ;

Ni, Jie ;

Zhai, Qijie ;

Zhang, Jieyu .

METALS, 2016, 6 (03)

[3] Steels for bearings [J].

Bhadeshia, H. K. D. H. .

PROGRESS IN MATERIALS SCIENCE, 2012, 57 (02) :268-435

[4] Grain refinement induced by electromagnetic stirring: A dendrite fragmentation criterion [J].

Campanella, T ;

Charbon, C ;

Rappaz, M .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (10) :3201-3210

[5] Effect of Sulphur Concentration on Precipitation Behaviors of MnS-containing Inclusions in GCr15 Bearing Steels after LF Refining [J].

Chen, Peng-ju ;

Zhu, Cheng-yi ;

Li, Guang-qiang ;

Dong, Ya-wen ;

Zhang, Zhi-cheng .

ISIJ INTERNATIONAL, 2017, 57 (06) :1019-1028

[6] Effect of flow on solidification structure of pure aluminium under pulse magneto-oscillation [J].

Cheng, Shumin ;

Zhong, Yuyi ;

Xu, Zhishuai ;

Pei, Ning ;

Zhai, Qijie ;

Gong, Yongyong .

MATERIALS SCIENCE AND TECHNOLOGY, 2018, 34 (10) :1212-1217

[7] Solidification morphology and segregation in continuously cast steel slab [J].

Choudhary, S. K. ;

Ganguly, S. ;

Sengupta, A. ;

Sharma, V. .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2017, 243 :312-321

[8] Application of a rotating magnetic field during directional solidification of Pb-Sn alloys: Consequences on the CET [J].

Eckert, S ;

Willers, B ;

Nikrityuk, PA ;

Eckert, K ;

Michel, U ;

Zouhar, G .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 413 :211-216

[9] Effect of impurity levels on the structure of solidified aluminum under pulse magneto-oscillation (PMO) [J].

Edry, I. ;

Erukhimovitch, V. ;

Shoihet, A. ;

Mordekovitz, Y. ;

Frage, N. ;

Hayun, S. .

JOURNAL OF MATERIALS SCIENCE, 2013, 48 (24) :8438-8442

[10] The effect of pulse magneto-oscillation treatment on the structure of aluminum solidified under controlled convection [J].

Edry, Itzhak ;

Frage, Nachum ;

Hayun, Shmuel .

MATERIALS LETTERS, 2016, 182 :118-120

← 1 2 3 4 →