Solidification Characteristics and Dendritic Segregation of As-Cast GH742 Alloys
文献类型：期刊论文
| 作者 | Pan Xiaolin1,2; Sun Wenru1; Li Zhan3; Yang Shulin1; Guo Shouren1; Yang Hongcai2; Hu Zhuangqi1 |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 2010 |
| 卷号 | 39期号:1页码:55-59 |
| 关键词 | GH742 solidification segregation microstructure |
| ISSN号 | 1002-185X |
| 通讯作者 | Pan Xiaolin(xlpan0512@hotmail.com) |
| 英文摘要 | High alloying GH742 alloys exhibit severe dendritic segregation with Nb and Ti intensively segregated to the interdendritic regions, leading to the precipitation of MC carbide, (gamma+gamma') eutectic, Laves phase and delta phase. High content of Mo as well as its dendritic segregation is the significant reason for the precipitation of sigma phase. Two phases containing rare earth elements, Ni(5)Ce phase and RE-O-S phase, are precipitated in the interdendritic regions due to the enrichment of La and Ce. Different from other superalloys, both eutectic reactions of (gamma+gamma') and (gamma+Laves) take place in sequence during the solidification process of GH742 alloys owing to the high contents of Al, Ti and Nb. The solidification temperature range of GH742 alloys is between 1346 and 1190 degrees C, and the solidification sequence is gamma, MC, (gamma+gamma'), Laves and Ni(5)Ce, which is determined by differential thermal analysis and solidification microstructure characterization. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000276258200012 |
| 出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
| 源URL | [http://ir.imr.ac.cn/handle/321006/100615]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Pan Xiaolin |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Northeastern Univ, Shenyang 110004, Peoples R China 3.Shenyang Univ Sci & Technol, Shenyang 110168, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pan Xiaolin,Sun Wenru,Li Zhan,et al. Solidification Characteristics and Dendritic Segregation of As-Cast GH742 Alloys[J]. RARE METAL MATERIALS AND ENGINEERING,2010,39(1):55-59. |
| APA | Pan Xiaolin.,Sun Wenru.,Li Zhan.,Yang Shulin.,Guo Shouren.,...&Hu Zhuangqi.(2010).Solidification Characteristics and Dendritic Segregation of As-Cast GH742 Alloys.RARE METAL MATERIALS AND ENGINEERING,39(1),55-59. |
| MLA | Pan Xiaolin,et al."Solidification Characteristics and Dendritic Segregation of As-Cast GH742 Alloys".RARE METAL MATERIALS AND ENGINEERING 39.1(2010):55-59. |
入库方式： OAI收割
来源：金属研究所
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