|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
等通道转角挤压过程中fcc金属的微观结构演化与力学性能
DOI: DOI:10.3724/SP.J.1037.2009.00748, PP. 257-276
Keywords: 等通道转角挤压,fcc金属,微观结构,晶粒细化,力学性能
Abstract:
系统总结了面心立方(fcc)金属材料在等通道转角挤压(ECAP)变形后的晶粒细化、微观结构演化规律和力学性能.根据ECAP变形的特点,利用具有特殊取向的Al单晶体和Cu双晶体,经过一道次ECAP挤压发现材料在ECAP模具对角面附近发生严重塑性变形;除了沿模具对角面切应力的作用外,沿垂直于模具对角面的切应力也起重要作用.此外,通过设计特殊取向的Cu单晶体、Al单晶体和粗晶Cu-3%Si合金经过一道次ECAP挤压,系统研究了层错能、晶粒尺寸和晶体学取向对fcc金属形变孪生所需的孪生应力的影响.对具有不同层错能的Cu-Al合金进行多道次ECAP挤压表明,随着层错能降低,Cu-Al合金的晶粒细化机制逐步从位错分割机制转变为孪生碎化机制,最小晶粒尺寸逐步减小,具有较高或较低层错能材料比中等层错能材料更容易获得均匀的微观组织;Cu-Al合金的拉伸强度和均匀延伸率随着层错能的降低同步提高,即随着层错能的降低,Cu-Al合金的强度--塑性匹配性提高.
| [1] | Gleiter H. Prog Mater Sci, 1989; 33: 223
|
| [2] | Valiev R Z, Islamgaliev R K, Alexandrov I V. Prog Mater Sci, 2000; 45: 103
|
| [3] | Valiev R Z, Langdon T G. Prog Mater Sci, 2006; 51: 881
|
| [4] | Valiev R Z, Korznikov A V, Mulyukov R R. Mater Sci Eng, 1993; A168: 141
|
| [5] | Torre F D, Lapovok R, Sandlin J, Thomson P F, Davies C H J, Pereloma E V. Acta Mater, 2004; 52: 4819
|
| [6] | Zhilyaev A P, Langdon T G. Prog Mater Sci, 2008; 53: 893
|
| [7] | Saito Y, Utsunomiya H, Tsuji N, Sakai T. Acta Mater, 1999; 47: 579
|
| [8] | Li Y S, Tao N R, Lu K. Acta Mater, 2008; 56: 230
|
| [9] | Cui G R, Ma Z Y, Li S X. Acta Mater, 2009; 57: 5718
|
| [10] | Segal V M. Mater Sci Eng, 1995; A197: 157
|
| [11] | Segal V M. Mater Sci Eng, 2003; A345: 36
|
| [12] | Wang Z G, Wu S D, Jiang C B, Liu S M, Alexandrov I V. Proc Fatigue, vol.3, West Midlands: Engineering Advisory Services, 2002: 1541
|
| [13] | Han W Z, Yang H J, An X H, Yang R Q, Li S X, Wu S
|
| [14] | D, Zhang Z F. Acta Mater, 2009; 57: 1132
|
| [15] | Zhang Z F, Wang Z G. Acta Mater, 2003; 51: 347
|
| [16] | Zhang Z F, Wang Z G. Prog Mater Sci, 2008; 53: 1025
|
| [17] | Yamakov V, Wolf D, Phillpot S R, Mukherjee A K, Gleiter
|
| [18] | H. Acta Mater, 2001; 49: 2713
|
| [19] | Han W Z, Zhang Z F, Wu S D, Li S X. Philos Mag, 2008;
|
| [20] | 88: : 3011
|
| [21] | Han W Z, Wu S D, Li S X, Zhang Z F. Appl Phys Lett,
|
| [22] | 200808; 92: 221909
|
| [23] | Han W Z, Cheng G M, Li S X, Wu S D, Zhang Z F. Phys
|
| [24] | Rev Lett, 2008; 101: 115505
|
| [25] | Han W Z, Wu S D, Huang C X, Li S X, Zhang Z F. Adv
|
| [26] | Eng Mater, 2008; 10: 1110
|
| [27] | Christian J W, Mahajan S. Prog Mater Sci, 1995; 39: 1
|
| [28] | Venables J A. Philos Mag, 1961; 6: 379
|
| [29] | Hang C X, Wang K, Wu S D, Zhang Z F, Li G Y, Li S X.
|
| [30] | Acta Mater, 2006; 54: 655
|
| [31] | Hirth J P, Lothe J. Theory of Dislocations. 2 Ed., John
|
| [32] | Wiley & Son Inc., Canada, 1982: 1
|
| [33] | Shan Z W, Stach E A, Wiezorek J M K, Knapp J A, Follstaedt
|
| [34] | D M, Mao S X. Science, 2004; 305: 654
|
| [35] | Van Swygenhoven H. Science, 2002; 296: 66
|
| [36] | Qu S, An X H, Yang H J, Huang C X, Yang G, Zang Q
|
| [37] | S, Wang Z G, Wu S D, Zhang Z F. Acta Mater, 2009; 57:
|
| [38] | 1586
|
| [39] | Komura S, Horita Z, Nemoto M. J Mater Res, 1999; 14:
|
| [40] | 4044
|
| [41] | Fukuda Y, Oh-ishi K, Furukawa M, Horita Z, Langdon T G. Mater Sci Eng, 2006; A420: 79
|
| [42] | Fukuda Y, Oh-ishi K, Furukawa M, Horita Z, Langdon T G. Acta Mater, 2004; 52: 1387
|
| [43] | Miyamoto H, Erb U, Koyama T, Mimaki T, Vinogradov A, Hashimoto S. Philos Mag Lett, 2004; 84: 235
|
| [44] | Zhu Y T, Lowe T C. Mater Sci Eng, 2000; A291: 46
|
| [45] | Iwahashi Y, Horita Z, Nemoto M, Langdon T G. Acta Mater, 1997; 45: 4733
|
| [46] | Iwahashi Y, Horita Z, Nemoto M, Langdon T G. Acta Mater, 1998; 46: 3317
|
| [47] | Tao N R, Lu K. Scr Mater, 2009; 60: 1039
|
| [48] | An X H, Han W Z, Huang C X, Zhang P, Yang G, Wu S D, Zhang Z F. Appl Phys Lett, 2008; 92: 201915
|
| [49] | Wang Y M, Ma E. Acta Mater, 2004; 52: 1699
|
| [50] | Zhao Y H, Zhu Y T, Liao X Z, Horita Z, Langdon T G. Appl Phys Lett, 2006; 89: 121906
|
| [51] | Han W Z. PhD Thesis, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 2008
|
| [52] | (韩卫忠. 中国科学院金属研究所博士论文, 沈阳, 2008)
|
| [53] | Qu S. PhD Thesis, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 2009
|
| [54] | (屈伸. 中国科学院金属研究所博士论文, 沈阳, 2009)
|
| [55] | An X H, Lin Q Y, Qu S, Yang G, Wu S D, Zhang Z F. J
|
| [56] | Mater Res, 2009: 24: 3636
|
| [57] | An X H, Qu S, Wu S D, Zhang Z F. J Mater Res, submitted
|
| [58] | Han W Z, Zhang Z F, Wu S D, Li S X. Acta Mater, 2007;
|
| [59] | 55: : 5889
|
| [60] | Zhilyaev A P, Kim B K, Szpunar J A. Mater Sci Eng,
|
| [61] | 200505; A391: 377
|
| [62] | Mohamed F A. Acta Mater, 2003; 51: 4107
|
| [63] | Balogh L, Ung′ar T, Zhao Y H, Zhu Y T, Horita Z, Xu C,
|
| [64] | Langdon T G. Acta Mater, 2008; 56: 809
|
| [65] | Lu L, Shen Y, Chen X, Qian L, Lu K. Science, 2004; 304:
|
| [66] | 422
|
| [67] | Lu L, Chen X, Huang X, Lu K. Science, 2009; 323: 607
|
| [68] | Shen Y, Lu L, Lu Q H, Jin Z H, Lu K. Scr Mater, 2005;
|
| [69] | 52: : 989
|
| [70] | Li Y S, Zhang Y, Tao N R, Lu K. Acta Mater, 2009; 57:
|
| [71] | 761
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
