Effects of Nb addition on microstructure and mechanical property of Ti-48Al-0.713 alloy
文献类型：期刊论文
| 作者 | Jiang Zhiguo; Ma Yingche; Chen Bo; Zhao Xiujuan; Liu Kui; Li Yiyi |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2007-05-01 |
| 卷号 | 43期号:5页码:482-486 |
| 关键词 | Ti-Al-B-Nb alloy car exhaust valve microstructure mechanical property |
| ISSN号 | 0412-1961 |
| 通讯作者 | Jiang Zhiguo() |
| 英文摘要 | Ti-48Al-0.7B-xNb (x=0, 3, 5, 8; atomic fraction, %) alloys were centrifugal cast into car exhaust valves and their microstructures and mechanical properties were studied. The results indicate that all the cast alloys possessed the fully lamellar alpha(2) + gamma structure, and has no 3 phase. The grain sizes of the alloys with different Nb contents are related to the additive composition supercooling induced by boron at the solidification front area and the grain boundary pinned by the precipitated borides during the solidification process. The interlamellar spacing (A) has a linear relationship with grain size d(-1/2). The sigma(b) of the alloy is affected by oxygen and niobium contents and the 6 is directly dominated by the grain size. The Ti-48Al-0.713-5Nb alloy has the most refined grain size and the optimum combined mechanical property (sigma(b)=399.6 MPa, delta=0.26%). |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000247026200007 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/90186]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jiang Zhiguo |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang Zhiguo,Ma Yingche,Chen Bo,et al. Effects of Nb addition on microstructure and mechanical property of Ti-48Al-0.713 alloy[J]. ACTA METALLURGICA SINICA,2007,43(5):482-486. |
| APA | Jiang Zhiguo,Ma Yingche,Chen Bo,Zhao Xiujuan,Liu Kui,&Li Yiyi.(2007).Effects of Nb addition on microstructure and mechanical property of Ti-48Al-0.713 alloy.ACTA METALLURGICA SINICA,43(5),482-486. |
| MLA | Jiang Zhiguo,et al."Effects of Nb addition on microstructure and mechanical property of Ti-48Al-0.713 alloy".ACTA METALLURGICA SINICA 43.5(2007):482-486. |
入库方式： OAI收割
来源：金属研究所
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