| Effects of Al content on microstructure and stability of GH4169 nickel base alloy | |
| Liu Fang1,2; Sun Wenru1; Yang Shulin1; Li Zhan3; Guo Shouren1; Yang Hongcai2; Hu Zhuangqi1 | |
| Corresponding Author | Sun Wenru(wrsun@imr.ac.cn) |
| 2008-07-01 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 44Issue:7Pages:791-798 |
| Abstract | When Al contents are in the standard range required by GH4169 alloy (0.45%), gamma '' phase and gamma' phase precipitated separately in the matrix grain, and delta phase precipitated as the main precipitate along the grain boundaries. When Al content >= 1.24%, gamma ''/gamma' with compact morphology formed in the grain, delta phase decreased greatly and a large amount of Laves phase, a small amount of M7C3 carbide and sigma phase precipitated along boundaries. After aging at 680 degrees C for 1000 h, the compact morphology grew slowly, whereas the phases precipitated along the grain boundaries increased in amount and coarsened in dimension, and alpha-Cr phase appeared. This trend is more obvious with increasing A1 content, as a result, the impact toughness of the alloy is largely decreased. |
| Keyword | Ni base alloy GH4169 Al compact morphology Laves phase M7C3 carbide sigma phase impact toughness |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000258314600005 |
| Publisher | SCIENCE CHINA PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/95648 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sun Wenru |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China 3.Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110168, Peoples R China |
| Recommended Citation GB/T 7714 | Liu Fang,Sun Wenru,Yang Shulin,et al. Effects of Al content on microstructure and stability of GH4169 nickel base alloy[J]. ACTA METALLURGICA SINICA,2008,44(7):791-798. |
| APA | Liu Fang.,Sun Wenru.,Yang Shulin.,Li Zhan.,Guo Shouren.,...&Hu Zhuangqi.(2008).Effects of Al content on microstructure and stability of GH4169 nickel base alloy.ACTA METALLURGICA SINICA,44(7),791-798. |
| MLA | Liu Fang,et al."Effects of Al content on microstructure and stability of GH4169 nickel base alloy".ACTA METALLURGICA SINICA 44.7(2008):791-798. |
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