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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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镍基高温合金γ'相析出的经典动态模型及应用
DOI: 10.3724/SP.J.1037.2011.00769, PP. 661-670
Keywords: 经典形核理论,高温合金,沉淀相,模拟计算
Abstract:
基于经典形核理论,考虑温度和保温时间对沉淀相析出的影响,建立了镍基高温合金中γ'沉淀相析出模型.同时结合GH738合金在等温时效实验条件下获得的γ'相析出特征值数据,验证模拟计算结果的相对正确性.结果表明,沉淀相析出过程经典动态模型可较好预测多元复杂镍基合金体系γ'相以均匀形核为主的析出过程.进一步利用该模型对GH80A,GH738,U720Li和DD407共计4种典型高温合金计算分析了Al和Ti含量及其比值变化对γ'相析出行为的影响.结果表明,对于γ'相平衡态含量,Al的作用程度比Ti大;而在Al+Ti总量不变的前提下,Ti含量增加将对提高γ'相的析出驱动力,从而减少完全析出时间有较大的贡献;Ti含量的增加也将使得沉淀相在析出初期的数量增加,而尺寸减小.
| [1] | Wang G, Du D S, Ma N. Acta Mater, 2009; 57: 316
|
| [2] | Gale W F, Nemani R V, Horton J A. J Mater Sci, 1996; 31: 1681
|
| [3] | Mao J. PhD Thesis, West Virginia University, Morgantown, 2002
|
| [4] | Booth-Morrison C, Weninger J, Sudbrack C K, Mao Z, Noebe R D,Seidman D N. Acta Mater, 2008; 56: 3422
|
| [5] | Kelekanjeri S K, Gerhardt R A. Electrochim Acta, 2006; 51: 1873
|
| [6] | Yao Z H, Dong J X, Zhang M C, Yu Q Y. Trans Mater Heat Treat,2011; 32(10): 43
|
| [7] | (姚志浩, 董建新, 张麦仓, 于秋颖. 材料热处理学报, 2011; 32(10): 43)
|
| [8] | Oja M, Chandran K S, Tryon R G. Int J Fatigue, 2010; 32: 551
|
| [9] | Moat R J, Pinkerton A J, Li L, Withers P J, Preuss M. Acta Mater,2009; 57: 1220
|
| [10] | Wisniewski A, Beddoes J. Mater Sci Eng, 2009; A510: 266
|
| [11] | Wang Y, Sun F, Dong X P, Zhang L T, Shan A D. Acta Metall Sin,2010; 46: 334
|
| [12] | (王衣, 孙峰, 董显平, 张澜庭, 单爱党. 金属学报, 2010; 46: 334)
|
| [13] | Wang M G, Tian S G, Yu X F, Qian B J. Rare Met Mater Eng,2010; 39: 268
|
| [14] | (王明罡, 田素贵, 于兴福, 钱本江. 稀有金属材料与工程, 2010; 39: 268)
|
| [15] | Zhu T, Wang C Y, Gan Y. Acta Phys Sin, 2009; 58: 156
|
| [16] | (朱弢,王崇愚, 干勇. 物理学报, 2009; 58: 156)
|
| [17] | Wen Y H, Zhu T, Cao L X, Wang C Y. Acta Phys Sin, 2003; 52: 2520
|
| [18] | (文玉华, 朱弢,曹立霞, 王崇愚. 物理学报, 2003; 52: 2520)
|
| [19] | Lifshitz I M, Slyozov V V. J Phys Chem Sol, 1961; 19: 35
|
| [20] | Wagner C. Z Elektrochem, 1961; 65: 581
|
| [21] | Wang X D, Wang Q, Jiang J Z. J Alloys Compd, 2007; 440: 189
|
| [22] | Hong C M, Dong J X, Zhang Y F, Zhang M C, Zheng L. Rare Met Mater Eng, 2009; 38: 510
|
| [23] | (洪成淼, 董建新, 张玉峰, 张麦仓, 郑磊. 稀有金属材料与工程, 2009; 38: 510)
|
| [24] | Song X P, Li H Y, Gai J F, Chen G L. Acta Metall Sin,2005; 41: 1233
|
| [25] | (宋西平, 李红宇, 盖靖峰, 陈国良. 金属学报, 2005; 41: 1233)
|
| [26] | Wang Y, Banerjee D, Su C C. Acta Mater, 1998; 46: 2983
|
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