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Effect of boron on the tensile and creep properties of a newly developed Ni-Fe-based weld metal
Wu, Dong1,2; Yao, Tingting3; Li, Dianzhong3; Lu, Shanping1,3
Corresponding AuthorLu, Shanping(shplu@imr.ac.cn)
2018-07-25
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume731Pages:21-28
AbstractBoron in Ni-Fe-based weld metals exists in a state of segregation at the grain boundaries and as a solid solution in the matrix. Boron segregration increased the tensile and creep ductility at 700 degrees C by suppressing intergranular failure. Moreover, B-doped weld metals exhibited longer rupture lives and lower steady creep rates. However, these improvements disappeared during exposure to 700 degrees C within 2000 h, which was mainly attributed to a change in boron distribution from segregation at the grain boundaries to incorporation in M2B-type borides. The electron energy loss spectroscopy results indicated that boron did not diffuse into the M23C6 carbides.
KeywordSolidification microstructure Secondary ion mass spectrometry (SIMS) Grain boundary Segregation Mechanical properties Superalloy Electron energy loss spectroscopy (EELS)
Funding OrganizationResearch & Development of Nuclear Materials and Service Safe Assurance Technology ; National High Technology Research and Development Program
DOI10.1016/j.msea.2018.06.027
Indexed BySCI
Language英语
Funding ProjectResearch & Development of Nuclear Materials and Service Safe Assurance Technology[ZDRW-CW-2017-1] ; National High Technology Research and Development Program[2012AA03A501]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000440881000003
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129128
Collection中国科学院金属研究所
Corresponding AuthorLu, Shanping
Affiliation1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Wu, Dong,Yao, Tingting,Li, Dianzhong,et al. Effect of boron on the tensile and creep properties of a newly developed Ni-Fe-based weld metal[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,731:21-28.
APA Wu, Dong,Yao, Tingting,Li, Dianzhong,&Lu, Shanping.(2018).Effect of boron on the tensile and creep properties of a newly developed Ni-Fe-based weld metal.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,731,21-28.
MLA Wu, Dong,et al."Effect of boron on the tensile and creep properties of a newly developed Ni-Fe-based weld metal".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 731(2018):21-28.
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