全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
金属学报  2014 

基于微观偏析模型的连铸方坯内裂纹敏感性研究

DOI: 10.11900/0412.1961.2014.00317, PP. 1505-1512

Keywords: 连铸方坯,非均匀冷却,微观偏析,内裂纹敏感性

Full-Text   Cite this paper   Add to My Lib

Abstract:

建立了YQ450NQR1钢连铸方坯的微观偏析模型,研究了在不同冷却速率的凝固过程中钢中主要溶质元素C,Si,Mn,P和S的晶间偏析行为及其对固-液两相区特征温度,即零强度温度(zerostrengthtemperature,ZST),零塑性温度(zeroductilitytemperature,ZDT)及黏滞性温度(liquidimpenetrabletemperature,LIT)的影响.在此基础上定义了内裂纹敏感性指数(IICS),并对YQ450NQR1钢连铸方坯内裂纹敏感性进行了表征.结果表明IICS值越趋近于1,铸坯内裂纹敏感性越大.此外,还建立了描述IICS与冷却速率(CR)关系的内裂纹敏感性模型,并对其进行验证,结果表明,该模型能够定量描述非均匀冷却条件下YQ450NQR1钢连铸方坯的内裂纹敏感性.

References

[1]  Brimacombe J K, Sorimachi K. Metall Mater Trans, 1977; 8B: 489
[2]  Mintz B, Yue S, Jonas J J. Int Mater Rev, 1991; 36: 187
[3]  Liu Q, Zhang L Q, Wang L Z, Ding X Z, Cao L G, Qi Y G, Liu Y W. J Univ Sci Technol Beijing, 2006; 28: 133 (刘 青, 张立强, 王良周, 丁秀中, 曹立国, 齐永革, 刘彦伟. 北京科技大学学报, 2006; 28: 133)
[4]  Himemiya T, Umeda T. ISIJ Int, 1998; 38: 730
[5]  Han Z Q, Cai K K. Acta Metall Sin, 2000; 36: 869 (韩志强, 蔡开科. 金属学报, 2000; 36: 869)
[6]  Luo H W, Karjalainen L P, Porter D A, Liimatainen H M, Zhang Y. ISIJ Int, 2002; 42: 273
[7]  El-Bealy M, Leskinen N, Fredrikson H. Ironmaking Steelmaking, 1995; 22: 246
[8]  Hardin R A, Liu K, Beckermann C, Kapoor A. Metall Mater Trans, 2003; 34B: 297
[9]  Wang X Y, Liu Q, Wang B. Ironmaking Steelmaking, 2011; 38: 552
[10]  Won Y M, Thomas B G. Metall Mater Trans, 2001; 32A: 1755
[11]  Clyne T W, Wolf M, Kurz W. Metall Mater Trans, 1982; 13B: 259
[12]  Dhindaw B K, Antonsson T, Fredriksson H, Tinoco J. Metall Mater Trans, 2004; 35A: 2869
[13]  Cornelissen M C M. Ironmaking Steelmaking, 1986; 13: 204
[14]  Yoon J K. ISIJ Int, 2008; 48: 879
[15]  Cai K K. Quality Control of Continuous Casting Billet. Beijing: Metallurgical Industry Press, 2010: 90 (蔡开科. 连铸坯质量控制. 北京: 冶金工业出版社, 2010: 90)
[16]  Clyne T W, Kurz W. Metall Mater Trans, 1981; 12A: 965
[17]  Yaguchi H. Metall Mater Trans, 1986; 17A: 2080
[18]  Liu Z Z, Wei J, Cai K K. ISIJ Int, 2002; 42: 958
[19]  Matsumiya T, Kajioka H, Mizoguchi S, Ueshima Y, Esaka H. Trans Iron Steel Inst Jpn, 1984; 24: 873
[20]  Liu Q, Wang L Z, Zhang L Q, Cao L G, Ding X Z, Liang M, Qi Y G. Int J Miner Metall Mater, 2008; 15: 17
[21]  Cai Z Z, Zhu M Y. Acta Metall Sin, 2009; 45: 949 (蔡兆镇, 朱苗勇. 金属学报, 2009; 45: 949)
[22]  Wang W L, Zhu M Y, Cai Z Z, Luo S, Ji C. Steel Res Int, 2012; 83: 1152
[23]  Cai Z Z, Zhu M Y. Foundry Technol, 2009; 11: 1396 (蔡兆镇, 朱苗勇. 铸造技术, 2009; 11: 1396)
[24]  Luo S, Zhu M Y, Ji C, Cai Z Z. Iron Steel, 2010; 45(6): 31 (罗 森, 朱苗勇, 祭 程, 蔡兆镇. 钢铁, 2010; 45(6): 31)
[25]  Jing C L, Wang X H, Jiang M. Steel Res Int, 2011; 82: 1173
[26]  Zhang Z X, Min Y, Jiang M F. J Northeastern Univ (Nat Sci Ed), 2010; 31: 966 (张志祥, 闵 义, 姜茂发. 东北大学学报(自然科学版), 2010; 31: 966)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133