| Influence of heat treatment on the microstructure and mechanical properties of DZ951 alloy | |
| Xia Pengcheng1,2; Yu Jingjiang1; Sun Xiaofeng1; Guan Hengrong1; Hu Zhuangqi1 | |
| 通讯作者 | Xia Pengcheng(xpc328@126.com) |
| 2008-04-01 | |
| 发表期刊 | RARE METALS
 |
| ISSN | 1001-0521 |
| 卷号 | 27期号:2页码:216-222 |
| 摘要 | DZ951 directionally solidified nickel-base superalloy is mainly strengthened by gamma phase. Regularly aligned cuboidal and bimodal gamma precipitates were attained by two heat treatments. The effect of microstructure on the mechanical properties of DZ951 alloy has been investigated. The results indicate that MC carbide changes to little blocks during aging treatment at 1050 degrees C (HT1). MC carbide partly degrades into M(23)C(6) and there is a layer of gamma around the carbide during aging treatment at 1150 degrees C (HT2), which is beneficial to the elongation of DZ951 alloy. Small gamma volume fraction and the uneven deformation structure are contributed to low mechanical properties of the as-cast alloy. HT1 alloy has a better stress rupture life at 1100 degrees C/50 MPa and yield stress at 20 degrees C, 800 degrees C and 1100 degrees C, which is attributed to regularly aligned cuboidal gamma phase and even deformation structure. HT2 alloy has a good combination of strength and ductility. This arises from the bimodal Y precipitates and the degeneration of MC carbide. |
| 关键词 | DZ951 alloy heat treatment microstructure mechanical properties |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:000255482700023 |
| 出版者 | NONFERROUS METALS SOC CHINA |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/93881 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Xia Pengcheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266510, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia Pengcheng,Yu Jingjiang,Sun Xiaofeng,et al. Influence of heat treatment on the microstructure and mechanical properties of DZ951 alloy[J]. RARE METALS,2008,27(2):216-222. |
| APA | Xia Pengcheng,Yu Jingjiang,Sun Xiaofeng,Guan Hengrong,&Hu Zhuangqi.(2008).Influence of heat treatment on the microstructure and mechanical properties of DZ951 alloy.RARE METALS,27(2),216-222. |
| MLA | Xia Pengcheng,et al."Influence of heat treatment on the microstructure and mechanical properties of DZ951 alloy".RARE METALS 27.2(2008):216-222. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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