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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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梯度硬质合金梯度层形成的计算机模拟及验证
DOI: 10.3724/SP.J.1037.2011.00151, PP. 1307-1314
Keywords: 梯度硬质合金,热力学,动力学,相图计算,模拟
Abstract:
建立了多组元梯度硬质合金W-C-Co-Ti-Ta-Nb-N体系的热力学和扩散动力学数据库,采用Thermo-Calc相图热力学计算软件描述了梯度烧结过程中出现的各相及其成分,并采用DICTRA扩散动力学软件对WC-Ti(C,N)-Co,WC-Ti(C,N)-TaC-Co和WC-Ti(C,N)-NbC-Co合金梯度层的各相体积分数及各组元成分随距离的分布进行了计算机模拟,模拟结果与实验结果吻合良好.在热力学和扩散动力学数据库基础上制备了WC-(Ti,W)C-Ti(C,N)-(Ta,Nb)C-Co合金,采用SEM观察梯度层的显微结构,利用EDS分析合金组元分布,并对合金梯度层的形成进行了计算模拟,模拟结果与实验结果吻合良好.
| [1] | Zhang W Z, Liu Y, He Y H, Wang H B. Rare Met Cem Carbides, 2005; 33(2): 28
|
| [2] | (张武装, 刘 咏, 贺跃辉, 王海兵. 稀有金属及硬质合金, 2005; 33(2): 28)
|
| [3] | Konyashin I Y. Mater Sci Eng, 1997; A230: 213
|
| [4] | Konyashin I Y. Surf Coat Technol, 1995; 71: 277
|
| [5] | Knotek O, Loffler F, Kramer G. Int J Ref Hard Mater, 1996; 14: 195
|
| [6] | Narasimhan K, Boppana S P, Bhat D G. Wear, 1995; 188: 123
|
| [7] | Frykholm R, Ekroth M, Jansson B, Andrén H O,？gren J. Acta Mater, 2003; 51: 1115
|
| [8] | Schwarzkopf M, Exner H E, Fischmeister H F. Mater Sci Eng, 1998; A105-106: 225
|
| [9] | Chen L M, Lengauer W, Ettmayer P, Dreyer K, Daub H W, Kassel D. Int J Ref Hard Mater, 2000; 18: 307
|
| [10] | Frykholm R, Andrén H O. Mater Chem Phys, 2001; 67: 203
|
| [11] | Andr′en H O. Mater Chem Phy, 2001; 67: 209
|
| [12] | Rosso M, Kassel D. Int J Ref Hard Mater, 1999; 17: 187
|
| [13] | Dreyer K, Kassel D. Int Plansee Seminar, 2001; 2: 768
|
| [14] | Suzuki H, Koji H, Yasuro T. Trans Jpn Inst Met, 1981; 22: 758
|
| [15] | Gustafson P,？stlund？. Int J Ref Hard Mater, 1993-1994; 12: 129
|
| [16] | Ekroth M, Frykholm R, Lindholm M, Andrén H O,？gren J. Acta Mater, 2000; 48: 2177
|
| [17] | Frykholm R, Ekroth M, Jansson B, Andrén H O,？gren J. Int J Ref Hard Mater, 2001; 19: 527
|
| [18] | Ekroth M, Frisk K, Jansson B, Dumitrescu F S. Metall Mater Trans, 2000; 31B: 615
|
| [19] | Frisk K, Dumitrescu F S, Ekroth M, Jansson B, Kruse O, Sundman B. J Phase Equilib, 2001; 22: 645
|
| [20] | Gustafson P. Mater Sci Technol, 1986; 2: 635
|
| [21] | Andrén J O, Helander T, H¨oglund L H, Shi P F, Sundman B. Calphad, 2002; 26: 273
|
| [22] | Andrén H O. Mater Chem Phys, 2001; 67: 209
|
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