STUDY OF MICROSTRUCTURES IN gamma/gamma '-alpha Mo DIRECTIONAL EUTECTOID ALLOY INDUCED BY LASER RAPID MELTING SOLIDIFICATION
文献类型：期刊论文
| 作者 | Jin Tao; Sun Xiaofeng; Zhao Nairen; Liu Jinlai; Zhang Jinghua; Hu Zhuangqi |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2009-05-01 |
| 卷号 | 45期号:5页码:527-535 |
| 关键词 | directional-eutectoid laser rapid melting solidification microstructure metastable phase |
| ISSN号 | 0412-1961 |
| 通讯作者 | Jin Tao(tjin@imr.ac.cn) |
| 英文摘要 | The principle purpose of surface modification by laser rapid melting solidification is to improve the surface properties of materals through the change of their surface microstructures. The gamma/gamma'-alpha Mo directional eutectoid alloy consisting of a chemical composition (atomic fraction) of 15.41%Al, 2.56%V, 3.25%Cr, 8.41%Mo and balance Ni was chosen in the present study. The master alloy was melted in a vacuum induction furnace, and then the directional eutectoid specimens were prepared in a vacuum solidified furnace. Two ways, i.e. pulse and scan, were used for the surface laser treatment. A finer directional eutectoid structure grows again in the melting zone when the laser pulse is parallel to the eutectoid growth direction. However, when the laser pulse is perpendicular to the eutectoid growth direction, the microstructures of melting zone are composed of much denser cell-like crystalline and dendrites. The dendritic arm in dendrite structure after laser melting consists of the gamma-solid solution and the fine gamma'-participites, and the microstructures in the interdendrites are composed of the gamma-solid solution containing gamma' and the metastable phase precipitates which are enriched by Mo. These metastable phases are the ordered [alpha Mo-(ordered)], Ni3Mo and ordered [Ni3Mo(ordered)] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000266627900003 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/99397]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jin Tao |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin Tao,Sun Xiaofeng,Zhao Nairen,et al. STUDY OF MICROSTRUCTURES IN gamma/gamma '-alpha Mo DIRECTIONAL EUTECTOID ALLOY INDUCED BY LASER RAPID MELTING SOLIDIFICATION[J]. ACTA METALLURGICA SINICA,2009,45(5):527-535. |
| APA | Jin Tao,Sun Xiaofeng,Zhao Nairen,Liu Jinlai,Zhang Jinghua,&Hu Zhuangqi.(2009).STUDY OF MICROSTRUCTURES IN gamma/gamma '-alpha Mo DIRECTIONAL EUTECTOID ALLOY INDUCED BY LASER RAPID MELTING SOLIDIFICATION.ACTA METALLURGICA SINICA,45(5),527-535. |
| MLA | Jin Tao,et al."STUDY OF MICROSTRUCTURES IN gamma/gamma '-alpha Mo DIRECTIONAL EUTECTOID ALLOY INDUCED BY LASER RAPID MELTING SOLIDIFICATION".ACTA METALLURGICA SINICA 45.5(2009):527-535. |
入库方式： OAI收割
来源：金属研究所
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