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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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氢对锆基块体非晶合金形变和开裂的影响
, PP. 689-693
Keywords: 块状非晶,氢,剪切带,SEM拉伸
Abstract:
通过充氢和未充氢缺口试样和三点弯曲试样在SEM下的原位加载，研究了氢对Zr65Al7.5Ni10Cu17.5块状非晶形变和开裂过程的影响，结果表明无论是否有氢，大块非晶的剪切带发展到临界条件，剪切裂纹就沿剪切带形核、扩展，它一旦张开就导致快速的断裂。断口上的无特征区是剪切带，而不是剪切裂纹断口；剪切断口形貌和拉伸断口形貌没有本质区别。对Zr65Al7.5Ni10Cu17.5非晶，只有当长时间充氢才能形成氢鼓泡，如鼓泡很小或尚未形成，则氢对剪切带以及裂纹的形核、扩展没有明显影响。如存在较大的氢鼓泡，则当剪切带尚未充分发展时微裂纹就形核，导致低应力脆断。
| [1] | Vaidyanathan R,Dao M,Ravichandran G,Suresh S. Acta Mater, 2001; 49: 3781
|
| [2] | Flores K M,Dauskardt R H. Scr Mater, 1999, 41: 937
|
| [3] | Spaepen F. Acta Metall, 1977; 25: 407
|
| [4] | Inoue A, Zhang W, Zhang T, Kurosaka K. Acta Mater, 2001; 49: 2645
|
| [5] | Xing L Q, Li Y, Ramesh K T, Li J, Hufnagel T L.Phys Rev, 2001; 64B: 180201
|
| [6] | Wright W J, Schwarz R B, Nix W D. Mater Sci Eng, 2001;A319-321: 229
|
| [7] | Flores K M, Dauskardt R H. Acta Mater, 2001; 49: 2527
|
| [8] | Li J X, Chu W Y, Gao K W , Qiao L J. Acta Metall Sin,2003; 39: 359 (李金许,褚武扬,高克玮,乔利杰,金属学报,2003;39:359)
|
| [9] | Li J X, Shan G B, Gao KW,Qiao L J,Chu W Y. Mater Sci Eng, 2003; A354: 337
|
| [10] | Namboodhiri T K, Ramesh T A, Singh G,Seghal S. Mater Sci Eng, 1983; 61: 23
|
| [11] | Lin J J, Perng T P. Metall Mater Trans,1995; 26A: 197
|
| [12] | Suh D, Danskardt R H. Scr Mater, 2000; 42: 233
|
| [13] | Guo J X, Li J X, Qiao L J, Gao K W, Chu W Y. Corros Sci, 2003; 45: 735
|
| [14] | Eliaz N, Banks-Sills L,Ashkenazi D,Eliasi R. Acta Mater, 2004; 52: 93
|
| [15] | Shan G. B, Wang Y W,Chu W Y, Li J X, Hui X D. Corros Sci, 2005; 47: 2731
|
| [16] | Peng X, Su Y J,Gao K W,Qiao L J,Chu W Y.Mater Lett, 2004; 58: 2073
|
| [17] | Creager M, Paris P C. Int J Fract Mech,1967; 4: 247
|
| [18] | Wang Y W, Chu W Y, Li J X, Su Y J, Gao K W, Qiao L J. Mater Lett, 2004; 58: 2393
|
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