Application of a Corner Chamfer to Steel Billets to Reduce Risk of Internal Cracking during Casting with Soft Reduction

被引:11
作者
Hu, Peng [1 ,2 ]
Zhang, Hui [1 ]
Zhang, Xingzhong [1 ]
Zhu, Miaoyong [2 ]
机构
[1] Ctr Iron & Steel Inst, Natl Engn & Res Ctr Continuous Casting Technol, Beijing 100081, Peoples R China
[2] Northeastern Univ, Sch Met & Mat, Shenyang 110819, Peoples R China
关键词
chamfer billet; soft reduction; finite element model; solidification phase transformation model; internal cracks; SOLIDIFICATION; SURFACE; CARBON; MODEL;
D O I
10.2355/isijinternational.54.2283
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
In order to get the brittle temperature range for internal crack, the solidification phase transformation model is established and LIT and ZDT are calculated. Then the fully coupled thermo-mechanical finite element models are developed using the commercial software ABAQUS to investigate stress and strain states in the brittle temperature range of the chamfer billets during soft reduction. The relation between chamfer angle and maximal principal stress, as well as equivalent plastic strain is analyzed, and the influence of chamfer angle of billet on the internal crack is studied. The results indicate that the maximal principal stress and the tensile stress decrease with the increase of chamfer angle. Reducing the soft reduction can lower the stress and strain in the brittle temperature range. It can be obtained that the larger reduction effect and lesser internal crack risk by adjusting the chamfer angle of the billet.
引用
收藏
页码:2283 / 2287
页数:5
相关论文
共 26 条
[1]  
[Anonymous], T ISIJ
[2]  
[Anonymous], ISIJ INT
[3]  
[Anonymous], 1996, ISIJ INT, DOI DOI 10.2355/ISIJINTERNATIONAL.36.SUPPL_S231
[4]  
[Anonymous], NSFMEA82082 U MICH D
[5]   EMPOWERMENT WITH KNOWLEDGE - TOWARD THE INTELLIGENT MOLD FOR THE CONTINUOUS-CASTING OF STEEL BILLETS [J].
BRIMACOMBE, JK .
METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1993, 24 (06) :917-935
[6]  
Chen W, 2007, Acta Metall Sin, V20, P241
[7]   Dynamic soft reduction for continuously cast rail bloom [J].
Chen, Yong ;
Li, Gui-Jun ;
Yang, Su-Bo ;
Zhu, Miao-Yong .
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2007, 14 (05) :13-+
[8]   THE EFFECT OF MELT COMPOSITION ON SOLIDIFICATION CRACKING OF STEEL, WITH PARTICULAR REFERENCE TO CONTINUOUS-CASTING [J].
CLYNE, TW ;
WOLF, M ;
KURZ, W .
METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1982, 13 (02) :259-266
[9]   Our understanding of macrosegregation: Past and present [J].
Flemings, MC .
ISIJ INTERNATIONAL, 2000, 40 (09) :833-841
[10]   Internal reduction efficiency of continuously cast strand with liquid core [J].
Ito, Y ;
Yamanaka, A ;
Watanabe, T .
REVUE DE METALLURGIE-CAHIERS D INFORMATIONS TECHNIQUES, 2000, 97 (10) :1171-1176