Effect of boron on the tensile and creep properties of a newly developed Ni-Fe-based weld metal

doi:10.1016/j.msea.2018.06.027

IMR OpenIR

	Effect of boron on the tensile and creep properties of a newly developed Ni-Fe-based weld metal
	Wu, Dong 1,2; Yao, Tingting 3; Li, Dianzhong 3; Lu, Shanping 1,3
通讯作者	Lu, Shanping(shplu@imr.ac.cn)
	2018-07-25
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	731 页码:21-28
摘要	Boron 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.
关键词	Solidification microstructure Secondary ion mass spectrometry (SIMS) Grain boundary Segregation Mechanical properties Superalloy Electron energy loss spectroscopy (EELS)
资助者	Research & Development of Nuclear Materials and Service Safe Assurance Technology ; National High Technology Research and Development Program
DOI	10.1016/j.msea.2018.06.027
收录类别	SCI
语种	英语
资助项目	Research & Development of Nuclear Materials and Service Safe Assurance Technology[ZDRW-CW-2017-1] ; National High Technology Research and Development Program[2012AA03A501]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000440881000003
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/129128
专题	中国科学院金属研究所
通讯作者	Lu, Shanping
作者单位	1.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
推荐引用方式 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.