Precipitation and phase transformation mechanism of additive manufactured Ni-Co base superalloy
文献类型：期刊论文
| 作者 | Tang, Ling3,4; Liang, Jingjing1,3; Cui, Chuanyong3; Li, Jinguo1,3; Zhou, Yizhou3; Sun, Xiaofeng3; Ding, Yutian2 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 151页码:252-259 |
| 关键词 | Additive manufacturing Ni-Co base superalloy eta phase Element loss |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2019.03.015 |
| 通讯作者 | Cui, Chuanyong(chycui@imr.ac.cn) |
| 英文摘要 | Microstructures of a newly developed Ni-Co base superalloy with different contents of Co manufactured by additive manufacturing (AM) have been investigated using optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM). The results show that, the Ni-Co base superalloy made by AM presents a columnar microstructure. This columnar microstructure is achieved through epitaxial growth of fine parallel dendrites from a substrate. eta phase and gamma' phase precipitate during the deposition process. After heat treatments, there are primary gamma', secondary gamma' and tertiary gamma' precipitated. The heat treatments also promote the precipitation of eta phase. The inductively coupled plasma atomic emission spectroscopy (ICP-AES) investigation shows that the loss and segregation of elements can account for the formation of eta phase. The results also indicate that the addition of Co promotes the precipitation of gamma' and impedes the precipitation of eta phase. Electron probe microanalyser (EPMA) results show that increasing of Co content decreases the segregation of Ti in the heat-treated state and is beneficial for decreasing the precipitation of eta phase. TEM analysis confirms that the phase transformation mechanism is mainly the reordering of atoms and the formation of stacking faults. |
| 资助项目 | National Key R&D Program of China[2018YFB1106600] ; National Key R&D Program of China[2017YFA0700703] ; National Key R&D Program of China[2018YFB1106000] ; National Natural Science Foundation of China (NSFC)[51771190] ; National Natural Science Foundation of China (NSFC)[51671189] ; National Natural Science Foundation of China (NSFC)[U1508213] ; National High-tech R&D Program (863 Program)[2014AA041701] ; State Key Laboratory of Solidification Processing in NWPU[SKLSP201834] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000467668600028 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; National High-tech R&D Program (863 Program) ; State Key Laboratory of Solidification Processing in NWPU |
| 源URL | [http://ir.imr.ac.cn/handle/321006/133317]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Cui, Chuanyong |
| 作者单位 | 1.Space Mfg Technol CAS Key Lab, Beijing 100094, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, 287 Langongping Rd, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Ling,Liang, Jingjing,Cui, Chuanyong,et al. Precipitation and phase transformation mechanism of additive manufactured Ni-Co base superalloy[J]. MATERIALS CHARACTERIZATION,2019,151:252-259. |
| APA | Tang, Ling.,Liang, Jingjing.,Cui, Chuanyong.,Li, Jinguo.,Zhou, Yizhou.,...&Ding, Yutian.(2019).Precipitation and phase transformation mechanism of additive manufactured Ni-Co base superalloy.MATERIALS CHARACTERIZATION,151,252-259. |
| MLA | Tang, Ling,et al."Precipitation and phase transformation mechanism of additive manufactured Ni-Co base superalloy".MATERIALS CHARACTERIZATION 151(2019):252-259. |
入库方式： OAI收割
来源：金属研究所
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