| 镍基单晶合金热处理过程中的组织演变 | |
| Alternative Title | Microstructure Evolution of Ni-based Single Crystal Superalloy During Heat-treating |
孙跃军 ; 葛艳辉; 张军
| |
| Source Publication | 热加工工艺
 |
| 2012-01-25 | |
| Volume | 41Issue:2Pages:214-218 |
| ISSN | 1001-3814 |
| Abstract | 利用螺旋选晶法制备了镍基单晶合金,研究了热处理过程中合金的组织演变。结果表明:合金的铸态组织由枝晶组成,W偏析于枝晶干,Ti、Cr、Mo和Ta偏析于枝晶间,固溶处理可以消除铸态组织中的枝晶,减小成分偏析,固溶温度越高,粗大的γ’和γ/γ’共晶溶解的越完全。时效处理过程中,大尺寸的γ’发生粗化,小尺寸的γ’逐渐消失,时效温度越高,γ’粗化得越严重。热处理促进合金元素在γ和γ’中的均匀分布,减小了合金的错配度。 |
| Other Abstract | A Ni-based superalloy was prepared by screw selecting crystal method.Microstructure evolution of the alloy during heat-treatment was investigated.The results show that the as-casting microstructure is composed by dendrites.EDS analysis indicates that W partitioned in dendrite zone and Ti,Cr,Mo,Ta in inter-dendrite.Solid solution treatment decreases composition partitioning,and with the increase of the solution temperature,coarsening γ and γ/γ eutectic solves completely.During the aging treating,the larger... |
| Keyword | 镍基单晶合金 枝晶 固溶 时效 错配度 |
| Subject Area | 新型材料的力学问题 |
| URL | 查看原文 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:4438456 |
| Department | LMFS多相流及流固耦合(LHO) |
| Citation statistics |
Cited Times:2[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46451 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | 孙跃军 |
| Recommended Citation GB/T 7714 | 孙跃军,葛艳辉,张军. 镍基单晶合金热处理过程中的组织演变[J]. 热加工工艺,2012,41,2,:214-218. |
| APA | 孙跃军,葛艳辉,&张军.(2012).镍基单晶合金热处理过程中的组织演变.热加工工艺,41(2),214-218. |
| MLA | 孙跃军,et al."镍基单晶合金热处理过程中的组织演变".热加工工艺 41.2(2012):214-218. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| C2012J-116.pdf（1097KB） | 开放获取 | -- | View Download | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment