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Ta对一种镍基单晶合金微观组织及蠕变机制的影响
Alternative TitleEffects of Ta on microstructure and creep mechanism of a Ni-base single crystal superalloy
孙跃军; 张军; Sun, YJ; Liaoning Tech Univ, Sch Mat Sci & Engn, Fuxing 123000, Peoples R China.
Source Publication稀有金属材料与工程=Rare Metal Materials and Engineering
2012-09-15
Volume41Issue:9Pages:1615-1618
ISSN1002-185X
Abstract利用螺旋选晶法制备不同Ta含量的镍基单晶合金,研究Ta对合金微观组织及蠕变机制的影响。结果表明:Ta改变了合金中γ’相的形貌,随着Ta含量的提高,γ’相由椭圆形向方形转变;Ta促进了Mo在γ基体中的溶解,增大了合金的错配度;Ta对镍基单晶合金的高温蠕变寿命有较大影响,随着Ta含量的提高,合金的蠕变寿命增加;Ta促进了γ/γ’界面的位错网的发展与完善,影响了蠕变变形过程中位错的运动方式。
Other AbstractNi-base superalloys with different Ta contents were prepared by the screw selecting method. The effects of Ta on microstructure and creep mechanism of Ni-base single crystal superalloys were investigated. Results show that the morphology of gamma' phase changes from ellipse to square with the increasing of Ta content. Negative mismatch of the superalloy increases due to more Ta and Mo dissolved into gamma phase. The creep rupture time is prolonged and dislocation net in gamma/gamma' interface is improved when the content of Ta increases form 6wt% to 10wt%.
Subject Area固体力学
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Indexed BySCI ; EI ; CSCD
Language中文
WOS IDWOS:000310046300023
WOS KeywordALLOYS
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
CSCD IDCSCD:4641703
DepartmentLMFS多相流及流固耦合(LHO)
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46648
Collection流固耦合系统力学重点实验室
Corresponding AuthorSun, YJ; Liaoning Tech Univ, Sch Mat Sci & Engn, Fuxing 123000, Peoples R China.
Recommended Citation
GB/T 7714
孙跃军,张军,Sun, YJ,等. Ta对一种镍基单晶合金微观组织及蠕变机制的影响[J]. 稀有金属材料与工程=Rare Metal Materials and Engineering,2012,41(9):1615-1618.
APA 孙跃军,张军,Sun, YJ,&Liaoning Tech Univ, Sch Mat Sci & Engn, Fuxing 123000, Peoples R China..(2012).Ta对一种镍基单晶合金微观组织及蠕变机制的影响.稀有金属材料与工程=Rare Metal Materials and Engineering,41(9),1615-1618.
MLA 孙跃军,et al."Ta对一种镍基单晶合金微观组织及蠕变机制的影响".稀有金属材料与工程=Rare Metal Materials and Engineering 41.9(2012):1615-1618.
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