| Microstructure and Phase Evolution in TiAl-Ti2AlNb Gradient Material Prepared by Micro-beam Plasma Melting Deposition | |
| Cai Yusheng; Liu Renci; Liu Dong; Cui Yuyou; Yang Rui | |
| Corresponding Author | Cai Yusheng(yscai14b@imr.ac.cn) |
| 2017-06-01 | |
| Source Publication | RARE METAL MATERIALS AND ENGINEERING
 |
| ISSN | 1002-185X |
| Volume | 46Pages:15-19 |
| Abstract | A Ti(2)ALNb-base alloy was deposited on a TiAl-base alloy by micro-beam plasma melting deposition. Optical microscope (OM), scanning electron microscope (SEM), energy-dispersive spectrometer (EDS), X-ray diffraction (XRD) and microhardness testing methods were used to investigate the typical microstructure evolution, phase transformation and the corresponding hardness evolution. Results show that micro-beam plasma melting deposited Ti(2)ALNb-base alloy are mainly composed of beta, O and alpha(2) phases. With the increase of distance from TiAl-base alloy, a series of phase evolutions along the compositional gradient occurs: gamma+alpha(2)/gamma ->beta(solid solution)+O -> beta(2)+O+alpha(2)(widmannstatten structure)->beta/(solid solution)+O. The microhardness of gradient material shows a wave-like distribution. The phase morphological evolution during forming of micro-beam plasma melting deposition gradient materials was explained based on the effect of the various elements on the phase stability in TiAl/Ti2AlNb-base alloy combining with the effects of special thermal cycle and heat accumulation in micro-beam plasma melting deposition forming. |
| Keyword | Ti2AlNb-base alloy micro-beam plasma microstructure microhardness |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000406570100004 |
| Publisher | NORTHWEST INST NONFERROUS METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/124816 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Cai Yusheng |
| Affiliation | Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Cai Yusheng,Liu Renci,Liu Dong,et al. Microstructure and Phase Evolution in TiAl-Ti2AlNb Gradient Material Prepared by Micro-beam Plasma Melting Deposition[J]. RARE METAL MATERIALS AND ENGINEERING,2017,46:15-19. |
| APA | Cai Yusheng,Liu Renci,Liu Dong,Cui Yuyou,&Yang Rui.(2017).Microstructure and Phase Evolution in TiAl-Ti2AlNb Gradient Material Prepared by Micro-beam Plasma Melting Deposition.RARE METAL MATERIALS AND ENGINEERING,46,15-19. |
| MLA | Cai Yusheng,et al."Microstructure and Phase Evolution in TiAl-Ti2AlNb Gradient Material Prepared by Micro-beam Plasma Melting Deposition".RARE METAL MATERIALS AND ENGINEERING 46(2017):15-19. |
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