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TEM study of microstructural characteristic and evaluation of mechanical performance for the hastelloy N/Ti/Hastelloy N superalloy joint brazed for diverse soaking time
He, Yanming1,3; Zheng, Wenjian1; Yang, Jianguo1; Zhu, Dongdong2; Yang, Xueshun1; Sun, Yuan4; Gao, Zengliang1
Corresponding AuthorZheng, Wenjian(zwj0322@zjut.edu.cn) ; Sun, Yuan(yuansun@imr.ac.cn)
2018-10-01
Source PublicationJOURNAL OF MANUFACTURING PROCESSES
ISSN1526-6125
Volume35Pages:271-281
AbstractThe purpose of this work was to describe and discuss the fundamental issues involved in brazing of Hastelloy N to Hastelloy N superalloy using pure Ti foil at 1333 K for different soaking time (1 similar to 90 min). A detailed electron microscopy examination (transmission electron microscopy and high-resolution transmission electron microscopy) was performed to study the microstructure of the joint. The mechanical performance of the joint was evaluated by a shear test. Results show that the brazed joint obtained could be described as Hastelloy N/Zone 1/ Zone 2/Zone 1/Hastelloy N. The Zone 1 whose constitution was hardly affected through modifying the soaking time was produced because of the eutectic melting of Cr(9)Mo(21)Ni(20)( )and Ni3Ti intermetallics. The constitution of Zone 2, however, was very sensitive to the joining condition. Among the soaking time under investigation, the highest joint average shear strength obtained was 350.4 MPa. The strength of the joint, as revealed, was closely related with the microstructure in the Zone 2. When the Hastelloy N superalloy was brazed for different soaking time, the microstructural evolution in the joint was clarified and its relationship with mechanical performance was built. The work will contribute to understand the brazeability of the Hastelloy series alloys and then broaden their applications.
KeywordHastelloy N alloy Brazing Titanium Electron microscopy Mechanical property
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province
DOI10.1016/j.jmapro.2018.07.022
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51475426] ; National Natural Science Foundation of China[51405439] ; National Natural Science Foundation of China[51501100] ; Natural Science Foundation of Zhejiang Province[LY17E050019]
WOS Research AreaEngineering
WOS SubjectEngineering, Manufacturing
WOS IDWOS:000448225000027
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/130134
Collection中国科学院金属研究所
Corresponding AuthorZheng, Wenjian; Sun, Yuan
Affiliation1.Zhejiang Univ Technol, Inst Proc Equipment & Control Engn, Hangzhou 310014, Zhejiang, Peoples R China
2.Quzhou Univ, Sch Mech Engn, Quzhou 324000, Peoples R China
3.Northwestern Univ, Dept Mat Sci & Engn, 2220 Campus Dr, Evanston, IL 60208 USA
4.Chinese Acad Sci, Dept Superalloy, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
He, Yanming,Zheng, Wenjian,Yang, Jianguo,et al. TEM study of microstructural characteristic and evaluation of mechanical performance for the hastelloy N/Ti/Hastelloy N superalloy joint brazed for diverse soaking time[J]. JOURNAL OF MANUFACTURING PROCESSES,2018,35:271-281.
APA He, Yanming.,Zheng, Wenjian.,Yang, Jianguo.,Zhu, Dongdong.,Yang, Xueshun.,...&Gao, Zengliang.(2018).TEM study of microstructural characteristic and evaluation of mechanical performance for the hastelloy N/Ti/Hastelloy N superalloy joint brazed for diverse soaking time.JOURNAL OF MANUFACTURING PROCESSES,35,271-281.
MLA He, Yanming,et al."TEM study of microstructural characteristic and evaluation of mechanical performance for the hastelloy N/Ti/Hastelloy N superalloy joint brazed for diverse soaking time".JOURNAL OF MANUFACTURING PROCESSES 35(2018):271-281.
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