| STUDY ON HOT CORROSION RESISTANCE OF A NEW DIRECTIONAL SOLIDIFICATION Ni-BASED SUPERALLOY | |
| Ning Likui1,2; Zheng Zhi1; Tan Yi2; Liu Enze1; Tong Jian1; Yu Yongsi2; Wang Hua3 | |
| Corresponding Author | Zheng Zhi(zhcngzhi@imr.ac.cn) |
| 2009-02-11 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 45Issue:2Pages:161-166 |
| Abstract | The hot corrosion resistance of a new directional solidification (DS) Ni-based super-alloy DZ68 was studied and compared with K438 alloy. The results indicate that the microstructure of DZ68 alloy is more uniform than K438 alloy after heat treatment. There are small size carbides in the microstructure of DZ68 alloy after heat treatment, but there are big size carbides and a lot (gamma + gamma') eutectic in the microstructure of K438 alloy. The hot corrosion of DZ68 alloy is uniform, and the corrosion products are mainly (Ni, Co)Cr(2)O(4) and Al(2)O(3), More (Ni, Co)Cr(2)O(4) exists in outer corrosion layer and more Al(2)O(3) exists in inner corrosion layer. For the K438 alloy the hot corrosion is not uniform, NiO is the mainly corrosion product in outer corrosion layer and CrS is the main corrosion product in inner corrosion layer, Moreover, the segregation of Ti can induce segregation of other elements in the two alloys, which leads to a severe local corrosion of alloys. Under the same experimental condition, the corrosion resistance of DZ68 alloy is a little better than that of K438 alloy. |
| Keyword | DZ68 hot corrosion superalloy |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000264304600006 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/98935 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zheng Zhi |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116023, Peoples R China 3.AVIC Xian Aeroengine Grp Ltd, Xian 710021, Peoples R China |
| Recommended Citation GB/T 7714 | Ning Likui,Zheng Zhi,Tan Yi,et al. STUDY ON HOT CORROSION RESISTANCE OF A NEW DIRECTIONAL SOLIDIFICATION Ni-BASED SUPERALLOY[J]. ACTA METALLURGICA SINICA,2009,45(2):161-166. |
| APA | Ning Likui.,Zheng Zhi.,Tan Yi.,Liu Enze.,Tong Jian.,...&Wang Hua.(2009).STUDY ON HOT CORROSION RESISTANCE OF A NEW DIRECTIONAL SOLIDIFICATION Ni-BASED SUPERALLOY.ACTA METALLURGICA SINICA,45(2),161-166. |
| MLA | Ning Likui,et al."STUDY ON HOT CORROSION RESISTANCE OF A NEW DIRECTIONAL SOLIDIFICATION Ni-BASED SUPERALLOY".ACTA METALLURGICA SINICA 45.2(2009):161-166. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment