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一种定向凝固Co基合金的热腐蚀行为
Alternative TitleHot Corrosion Behavior of a Directional Solid Co-base Superalloy
孙跃军; 刘梦龙; 刘喜中; 张军
Source Publication表面技术
2012-02-10
Volume41Issue:1Pages:33-36
ISSN1001-3660
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 AbstractThe 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...
KeywordCo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
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Indexed ByCSCD
Language中文
CSCD IDCSCD:4478225
DepartmentLMFS多相流及流固耦合(LHO)
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Document Type期刊论文
Identifierhttp://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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