|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
新的单参数动态再结晶动力学建模及晶粒尺寸预测
DOI: 10.3724/SP.J.1037.2012.00486, PP. 1510-1519
Keywords: 动态再结晶,再结晶分数,动力学模型,镁合金AZ31B
Abstract:
通过引入动态再结晶的演化速率,分析了基于Avrami方程的经典动态再结晶动力学模型的不足,提出了一种新的具有单参数的动态再结晶动力学模型,反映了动态再结晶过程缓慢--快速--缓慢的特点.采用Gleeble-1500热模拟试验机,对典型的具有动态再结晶特性的材料镁合金AZ31B进行了热压缩实验,通过进行参数回归得到了其动态再结晶动力学模型,并与实验结果相对比,验证了该模型的正确性.进一步将稳态变形条件下获得的微观组织演化模型改写成分步叠加形式,与动态再结晶晶粒尺寸模型相结合,应用到非稳态条件的晶粒预测,模拟与实验的对比表明计算结果和定量金相法所获得的结果基本一致,说明了非稳态变形过晶粒的叠加预测方法的合理性.
| [1] | Kim S, Lee Y, Lee D, Yoo Y. Mater Sci Eng, 2003; A355: 384
|
| [2] | Kim S, Yoo Y. Mater Sci Eng, 2001; A311: 108
|
| [3] | Kopp R, Karnhausen K, de Souza M. Scand J Met, 1991; 20: 351
|
| [4] | Laasraoui A, Jonas J J. Metall Trans, 1991; 22A(7): 151
|
| [5] | Serajzadeh S, Taheri A K. Mech Res Commun, 2003; 30: 87
|
| [6] | Bergstrom Y. Mater Sci Eng, 1969/1970; (5): 193
|
| [7] | Liu J, Cui Z, Ruan L. Mater Sci Eng, 2011; A529: 300
|
| [8] | Sellars C M. Mater Sci Tech Ser, 1990; 6: 1072
|
| [9] | Sellars C M, Whiteman J A. Met Sci, 1979; 13(3-4): 187
|
| [10] | McQueen H J, Yue S, Ryan N D, Fry E. J Mater Process Tech, 1995; 53: 293
|
| [11] | Devadas C, Samarasekera I V, Hawbolt E B. Metall Trans, 1991; 22A: 335
|
| [12] | Avedesian M M, Baker H. United States of America: ASMInternational, 1999: 3
|
| [13] | McQueen H J. Mater Sci Eng, 2004; A387-389: 203
|
| [14] | Tan J C, Tan M J. Mater Sci Eng, 2003; A339: 124
|
| [15] | Mwembela A, Konopleva E B, McQueen H J. Scr Mater, 1997; 37: 1789
|
| [16] | Barnett M R, Beer A G, Atwell D, Oudin, A. Scr Mater, 2004; 51: 19
|
| [17] | Zhou H T. PhD Thesis, Shanghai Jiao Tong University, 2004(周海涛. 上海交通大学博士论文, 2004)
|
| [18] | Liu J, Cui Z, Li C. Comp Mater Sci, 2008; 41: 375
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
