Hot-deformation-induced alpha(2)/gamma interfacial structure in a two-phase gamma-TiAl-based alloy
文献类型：期刊论文
| 作者 | L. C. Zhang ; G. L. Chen ; J. G. Wang ; H. Q. Ye |
| 刊名 | Materials Letters
 |
| 出版日期 | 1998 |
| 卷号 | 36期号:1-4页码:132-136 |
| 关键词 | TiAl alloy deformation lamellae bending/kinking alpha(2)/gamma interface HREM microstructure transmission electron-microscopy titanium aluminide boundaries |
| ISSN号 | 0167-577X |
| 中文摘要 | The occurrence of nonequilibrium semi-coherent alpha(2)/gamma interfaces is an important microstructural feature of hot-deformed Ti-45Al-10Nb-2.5Mn-0.05B alloys. The feature of the alpha(2)/gamma interfaces is the misorientation from the conventional orientation relationship{111}(gamma) {0001}(alpha 2), (1 (1) over bar 0)(gamma) (11 (2) over bar 0)(alpha 2), as well as the asymmetry in the sense of interfacial boundary planes deviating from the equilibrium atomic planes (111)(gamma) or (0001)(alpha 2). Numerous interfacial ledges containing 1/3[111] Frank partial dislocations exist in this nonequilibrium semi-coherent alpha(2)/gamma interface. The analysis points toward the formation of this type of nonequilibrium alpha(2)/gamma interface accommodating the relative rotation of alpha(2) and gamma plates in the hot-deformation-induced bent lamellar structure. In the sharply bent lamellae, there even occur largely misoriented non-coherent alpha(2)/gamma interfaces with the {111}gamma plane no longer being parallel to the {0001}(alpha 2) plane. These interfaces result from the lamellae bending/kinking during heavy deformation. (C) 1998 Elsevier Science B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37871]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | L. C. Zhang,G. L. Chen,J. G. Wang,et al. Hot-deformation-induced alpha(2)/gamma interfacial structure in a two-phase gamma-TiAl-based alloy[J]. Materials Letters,1998,36(1-4):132-136. |
| APA | L. C. Zhang,G. L. Chen,J. G. Wang,&H. Q. Ye.(1998).Hot-deformation-induced alpha(2)/gamma interfacial structure in a two-phase gamma-TiAl-based alloy.Materials Letters,36(1-4),132-136. |
| MLA | L. C. Zhang,et al."Hot-deformation-induced alpha(2)/gamma interfacial structure in a two-phase gamma-TiAl-based alloy".Materials Letters 36.1-4(1998):132-136. |
入库方式： OAI收割
来源：金属研究所
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