|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
热轧Mg-1Zn和Mg-1Y合金退火组织演变及静态再结晶行为
DOI: 10.3724/SP.J.1037.2012.00079, PP. 526-533
Keywords: Mg-Zn合金,Mg-Y合金,热轧制,静态再结晶
Abstract:
对比研究了高温轧制制备的Mg-1.02Zn及Mg-0.76Y(质量分数,%)合金在不同温度退火条件下的组织演变及静态再结晶和晶粒长大动力学行为.结果表明,Mg-1Zn合金的轧制组织以剪切带和孪晶为主,在剪切带和孪晶内伴随着动态再结晶;而Mg-1Y合金的轧制组织中只有孪晶,未观察到剪切带和再结晶发生.退火过程中,Mg-1Zn合金静态再结晶过程主要受控于形核过程,而Mg-1Y合金则既受控于形核过程又受控于长大过程.利用经典的JMAK模型和长大模型分别描述了2种合金热轧制后的静态再结晶和晶粒长大动力学过程,结果表明,静态再结晶过程的Avrami因子n值与理想预测值偏离可能来自于再结晶的不均匀形核.固溶稀土Y原子比Zn原子对晶界移动的拖曳作用更强,导致Mg-1Y合金比Mg-1Zn合金晶粒长大因子n'更高.
| [1] | Yan H, Xu S W, Chen R S, Kamado S, Honma T, Han E H. Scr Mater, 2011; 64: 141
|
| [2] | Stanford N. Mater Sci Eng, 2010; A527: 2669
|
| [3] | Stanford N, Barnett M R. Scr Mater, 2008; 58: 179
|
| [4] | Stanford N, Barnett M R. Mater Sci Eng, 2008; A496: 399
|
| [5] | Chino Y, Kado M, Mabuchi M. Mater Sci Eng, 2008; A494: 343
|
| [6] | Chino Y, Sassa K, Mabuchi M. Mater Sci Eng, 2009; A513-514: 394
|
| [7] | Barnett M R. Mater Sci Eng, 2007; A464: 1
|
| [8] | Barnett M R. Mater Sci Eng, 2007; A464: 8
|
| [9] | Chino Y, Kado M, Mabuchi M. Acta Mater, 2008; 56: 387
|
| [10] | Hantzsche K, Bohlen J, Wendt J, Kainer K U, Yi S B, Letzig D. Scr Mater, 2010; 63: 725
|
| [11] | Mackenzie L W F, Pekguleryuz M O. Scr Mater, 2008; 59: 665
|
| [12] | Humphreys F J, Hatherly M. Recrystallization and Related Annealing Phenomena. Oxford: Pergamon; 1995
|
| [13] | Sandlobes S, Zaefferer S, Schestakow I, Yi S. Acta Mater, 2011; 59: 429
|
| [14] | Cottam R, Robson J, Lorimer G, Davis B. Mater Sci Eng, 2008; A485: 375
|
| [15] | Jager A, Lukac P, Gartnerova V, Haloda J, Dopita M. Mater Sci Eng, 2006; A432: 20
|
| [16] | Xu S W, Matsumoto N, Kamado S, Honma T, Kojima Y. Scr Mater, 2009; 61: 249
|
| [17] | Xu S W, Kamado S, Matsumoto N, Honma T, Kojima Y. Mater Sci Eng, 2009; A527: 52
|
| [18] | Su C W, Lu L, Lai M O. Philos Mag, 2009; 88: 181
|
| [19] | Chao H Y, Sun H F, Chen W Z, Wang E D. Mater Charact, 2011; 62: 312
|
| [20] | Stanford N, Atwell D, Barnett M R. Acta Mater, 2010; 58: 6773
|
| [21] | Burke J E, Turnbull D. Progress in Metal Physics. London: Pergamon, 1952; 3: 220
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
