OALib Journal期刊
ISSN: 2333-9721
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Mg-(11-13)Gd-1Zn变形镁合金的组织和力学性能
DOI: 10.3724/SP.J.1037.2012.00156, PP. 733-738
Keywords: 镁合金,Gd,Zn,时效,长周期堆垛有序相
Abstract:
制备了3种成分的Mg-Gd-Zn三元合金,并对其显微组织和力学性能进行了较系统的研究.结果表明,Mg-(11-13)Gd-1Zn(质量分数,%)三元合金的铸态组织由α-Mg,(Mg,Zn)3Gd和具有14H结构的长周期堆垛有序相(14H-LPSO)组成;(Mg,Zn)3Gd呈现典型的网状共晶形貌,其体积分数随Gd含量的增加而增大.热挤压过程中(Mg,Zn)3Gd相破碎,其颗粒沿挤压方向排列,而14H-LPSO相则分布于条状分布的(Mg,Zn)3Gd颗粒之间.铸态和挤压态合金在高温固溶处理后,14H--LPSO相的体积分数增加,大部分(Mg,Zn)3Gd相溶入基体.挤压态合金经固溶和时效(T6)处理后,显微组织中14H--LPSO相的体积分数大幅度增加,而且出现了β'和β1沉淀颗粒.对挤压后的合金直接进行时效处理(T5)过程中也形成了β'和β1沉淀,但14H-LPSO相没有显著增加.3种合金中Mg-11Gd-1Zn合金在T6态的性能最好,抗拉强度高达416MPa.
References
[1] | Chino Y, Mabuchi M, Hagiwara S, Iwasaki H, Yamamoto A, Tsubakino H. Scr Mater, 2004; 51: 711
|
[2] | Liu K, Meng J. J Alloys Compd, 2011; 509: 3299
|
[3] | Yang Z, Li J P, Guo Y C, Liu T, Xia F, Zeng Z W, Liang M X. Mater Sci Eng, 2007; A454--455: 274
|
[4] | Liu X B, Chen R S, Han E H. J Alloy Compd, 2008; 465: 232
|
[5] | Han X Z, Xu W C, Shan D B. J Alloy Compd, 2011; 509: 8625
|
[6] | Yin D D, Wang Q D, Gao Y, Chen C J, Zheng J. J Alloy Compd, 2011; 509: 1696
|
[7] | Zhang S, Yuan G Y, Lu C, Ding W J. J Alloy Compd, 2011; 509: 3515
|
[8] | Zheng L, Liu C M, Wan Y C, Yang P W, Shu X. J Alloy Compd, 2011; 509: 8832
|
[9] | Yamasaki M, Sasaki M, Nishijima M, Hiraga K, Kawamura Y. Acta Mater, 2007; 55: 6798
|
[10] | Honma T, Ohkubo T, Kamado S, Hono K. Acta Mater, 2007; 55: 4137
|
[11] | Bae D H, Lee M H, Kim K T, Kim D H. J Alloy Compd, 2002; 342: 445
|
[12] | Liu K, Zhang J H, Su G H, Tang D X, Rokhlin L L, Elkin F M, Meng J. J Alloy Compd, 2009; 481: 811
|
[13] | Gao Y, Wang Q D, Gu J H, Zhao Y, Tong Y, Yin D D. J Alloy Compd, 2009; 477: 374
|
[14] | Li D J, Zeng X Q, Dong J, Zhai C Q, Ding W J. J Alloy Compd, 2009; 468: 164
|
[15] | Wu Y J, Zeng X Q, Lin D L, Peng L M, Ding W J. J Alloy Compd, 2009; 477: 193
|
[16] | Apps P J, Karimzadeh H, King J F, Lorimer G. Scr Mater, 2003; 8: 1023
|
[17] | Kawamura Y, Hayashi K, Inoue A, Masumoto T. Mater Trans, 2001; 42: 1171
|
[18] | Itoi T, Seimiya T, Kawamura Y, Hirohashi M. Scr Mater, 2004; 51: 107
|
[19] | Yamasaki M, Anan T, Yoshimoto S, Kawamura Y. Scr Mater, 2005; 53: 799
|
[20] | Shao X H, Yang Z Q, Ma X L. Acta Mater, 2010; 58: 4760
|
[21] | Hagihara K, Kinoshita A, Sugino Y, Yamasaki M, Kawamura Y, Yasuda H Y, Umakoshi Y. Acta Mater, 2010; 58: 6282
|
[22] | Zeng X Q, Wu Y J, Peng L M, Lin D L, Ding W J, Peng Y H. Acta Metall Sin, 2010; 46: 1041
|
[23] | (曾小勤, 吴玉娟, 彭立明, 林栋樑, 丁文江, 彭赢红. 金属学报, 2010; 46: 1041)
|
[24] | Matsuda M, Ando S, Nishida M. Mater Trans, 2005; 46: 361
|
[25] | Antion C, Donnadieu P, Perrard F, Desehamps A, Tassin C, Piseh A. Acta Mater, 2003; 51: 5335
|
[26] | Nie J F, Oh--ishi K, Gao X, Hono K. Acta Mater, 2008; 56: 6061
|
[27] | Liu K, Zhang J H, Lu H, Tang D X, Rokhlin L L, Elkin F M, Meng J. Mater Des, 2010; 31: 210
|
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