EFFECTS OF HIP AND HEAT TREATMENT ON MICROSTRUCTURE AND COMPRESSIVE PROPERTIES OF RAPIDLY SOLIDIFIED NiAl-Cr(Mo)-Hf EUTECTIC ALLOY
文献类型：期刊论文
| 作者 | Sheng Liyuan; Guo Jianting; Zhang Wei; Xie Yi; Zhou Lanzhang; Ye Hengqiang |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2009-09-11 |
| 卷号 | 45期号:9页码:1025-1029 |
| 关键词 | NiAl-Cr(Mo)-Hf eutectic alloy rapid solidification hot isostatic pressing (HIP) microstructure mechanical property |
| ISSN号 | 0412-1961 |
| 通讯作者 | Guo Jianting(jtguo@imr.ac.cn) |
| 英文摘要 | The NiAl-Cr(Mo) eutectic alloy has better fracture toughness and high temperature strength among NiAl alloys. Hf addition can raise the high temperature strength of NiAl-Cr(Mo) eutectic alloy further, but decreases its room temperature compressive properties obviously; which is caused by the microsegregation of Heusler phases. The NiAl-Cr(Mo)-0.5Hf alloy was rapidly solidified and then hot isostatic pressed (HIP) or high temperature treated (HTT) in order to improve the structure and property of this eutectic alloy. The results reveal that rapid solidification can well refine the microstructure of eutectic alloy and keep more amount of Hf solid solution phase in the alloy. Simultaneously, the shapes and distributions of the Heusler (Ni(2)AlHf) phases and Hf solid solution phases are well improved. After the HIP treatment, more Heusler phases are transformed into Hf solid solution phases, and the distributions of Heusler phases and Hf solid solution phases become homogeneous, and moreover the primary NiAl phases become coarsening obviously. After HTT, the amount of primary NiAl phases decreases a little, the Heusler phases and Hf solid solution phases become finer. The rapid solidification improves the room temperature compressive properties of the alloy significantly, the HIP and HTT improve its high temperature compressive properties further. |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000271663400001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/98695]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Guo Jianting |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sheng Liyuan,Guo Jianting,Zhang Wei,et al. EFFECTS OF HIP AND HEAT TREATMENT ON MICROSTRUCTURE AND COMPRESSIVE PROPERTIES OF RAPIDLY SOLIDIFIED NiAl-Cr(Mo)-Hf EUTECTIC ALLOY[J]. ACTA METALLURGICA SINICA,2009,45(9):1025-1029. |
| APA | Sheng Liyuan,Guo Jianting,Zhang Wei,Xie Yi,Zhou Lanzhang,&Ye Hengqiang.(2009).EFFECTS OF HIP AND HEAT TREATMENT ON MICROSTRUCTURE AND COMPRESSIVE PROPERTIES OF RAPIDLY SOLIDIFIED NiAl-Cr(Mo)-Hf EUTECTIC ALLOY.ACTA METALLURGICA SINICA,45(9),1025-1029. |
| MLA | Sheng Liyuan,et al."EFFECTS OF HIP AND HEAT TREATMENT ON MICROSTRUCTURE AND COMPRESSIVE PROPERTIES OF RAPIDLY SOLIDIFIED NiAl-Cr(Mo)-Hf EUTECTIC ALLOY".ACTA METALLURGICA SINICA 45.9(2009):1025-1029. |
入库方式： OAI收割
来源：金属研究所
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