| 一种定向凝固Co基合金的热腐蚀行为 | |
| Alternative Title | Hot Corrosion Behavior of a Directional Solid Co-base Superalloy |
孙跃军 ; 刘梦龙; 刘喜中; 张军
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| Source Publication | 表面技术
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| 2012-02-10 | |
| Volume | 41Issue:1Pages:33-36 |
| ISSN | 1001-3660 |
| Abstract | 利用箱式电阻炉、SEM等手段,研究了一种定向凝固Co基合金在不同介质中的热腐蚀行为及机理。研究结果表明:合金在Na_2SO_4中的热腐蚀最为严重,在75%Na_2SO_4+25%NaCl中的热腐蚀程度最轻。合金在Na_2SO_4中的热腐蚀过程中主要发生了酸性熔融反应,形成了Al_2(SO_4)_3,Cr_2Ni_3,Cr_4Ni_(15)W和Al_4CrNi_(15)等腐蚀产物,而在NaCl中的热腐蚀主要发生了活性氧化反应,合金在75%Na_2SO_4+25%NaCl中热腐蚀时,部分酸性熔融反应和活性氧化反应受到抑制,主要形成了一系列的Ni-S化合物。 |
| Other Abstract | The hot corrosion behavior of a directionally solidified Co-base superalloy in different mediums were investigated by using resistance furnace and SEM methods.As showed by the testing results,the most severity corrosion occurred in Na2SO4,and the least in 75%Na2SO4+25%NaCl when the alloy was corroded at 700 ℃ for 10 hours.Analysis of SEM and XRD showed that Al2(SO4)3,Cr2Ni3,Cr4Ni15W and Al4CrNi15 formed which indicate acid melting and fusing reaction occured when the alloy corroded in Na2SO4,oxides and chlo... |
| Keyword | Co基合金 热腐蚀 酸性熔融反应 活性氧化反应 |
| 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:4478225 |
| Department | LMFS多相流及流固耦合(LHO) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46512 |
| 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,刘梦龙,刘喜中,等. 一种定向凝固Co基合金的热腐蚀行为[J]. 表面技术,2012,41,1,:33-36. |
| APA | 孙跃军,刘梦龙,刘喜中,&张军.(2012).一种定向凝固Co基合金的热腐蚀行为.表面技术,41(1),33-36. |
| MLA | 孙跃军,et al."一种定向凝固Co基合金的热腐蚀行为".表面技术 41.1(2012):33-36. |
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