Brittle-to-ductile transition in multiphase NiAl alloy
文献类型：期刊论文
| 作者 | Cui, CY; Chen, YX; Guo, JT; Qi, YH; Ye, HQ |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2002-02-28 |
| 卷号 | 325期号:1-2页码:186-193 |
| 关键词 | microstructure BDTT fracture morphology the apparent activation energy (Q) |
| ISSN号 | 0921-5093 |
| 通讯作者 | Cui, CY() |
| 英文摘要 | The microstructure of a directionally solidified (DS) NiAl Cr(Mo,Hf) alloy was studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). This alloy was composed of NiAl, Cr(Mo) and Ni2AlHf phases. Tensile testing of this multiphase NiAl alloy was performed from room temperature to 1323 K at various strain rates from 1.04 x 10(-4) s(-1) to 1.04 x 10(-2) s(-1). It was found that the brittle-to-ductile transition temperature (BDTT) of this alloy was higher than values reported for many of NiAl-based alloys and dependent on the strain rate. Regardless of strain rate, at temperatures just above the BDTT. the fracture morphology changed from NiAl's cleavage and debonding along the NiAl Cr(Mo) interface to completely ductile in nature. It was also found that the apparent activation energy responsible for BDT is 463 kJ mol(-1) which may be responsible for the higher BDTT. (C) 2002 Elsevier Science B.V. All rights reserved. |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000174080600023 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.imr.ac.cn/handle/321006/115206]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Cui, CY |
| 作者单位 | Chinese Acad Sci, Met Res Inst, Atom Imaging Solids Lab, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, CY,Chen, YX,Guo, JT,et al. Brittle-to-ductile transition in multiphase NiAl alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2002,325(1-2):186-193. |
| APA | Cui, CY,Chen, YX,Guo, JT,Qi, YH,&Ye, HQ.(2002).Brittle-to-ductile transition in multiphase NiAl alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,325(1-2),186-193. |
| MLA | Cui, CY,et al."Brittle-to-ductile transition in multiphase NiAl alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 325.1-2(2002):186-193. |
入库方式： OAI收割
来源：金属研究所
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