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An effective strategy towards construction of CVD SiC fiber-reinforced superalloy matrix composite
Zhang, Haoqiang1,2; Liu, Lin1,2; Pei, Zhiliang1; Shi, Nanlin1; Gong, Jun1; Sun, Chao1
Corresponding AuthorSun, Chao(csun@imr.ac.cn)
2020-07-15
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume49Pages:179-185
AbstractIn this work, a modified approach for preparing CVD SiC fiber-reinforced superalloy matrix composites was rationally developed. The composites were fabricated by vacuum hot pressing (VHP) process using precursor wires coated with (Al+Al2O3) diffusion barrier layers and GH4169 superalloy coatings. BNi-7 brazing filler metals were introduced on the surface of precursor wires in order to decrease the temperature of the VHP process. It was found that the VHP temperature was reduced by about 100 degrees C, and the melting, diffusion, nucleation and growth processes of BNi-7 fillers at 900 degrees C motivated the recrystallization and plastic flow of the matrix under the increasing pressure, thereby a compact composite composed of intact SiC fibers and fine equiaxial grain structure superalloy matrix was achieved. Meanwhile, the elements were distributed homogeneously among the fibers in the composite and no interfacial reactions occurred. This method provides a new insight for designing and manufacturing high-quality composites in practical engineering. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordSiC fiber Superalloy Diffusion barrier Brazing filler metal
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.jmst.2020.01.050
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51371170]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000537326300019
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139106
Collection中国科学院金属研究所
Corresponding AuthorSun, Chao
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Haoqiang,Liu, Lin,Pei, Zhiliang,et al. An effective strategy towards construction of CVD SiC fiber-reinforced superalloy matrix composite[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,49:179-185.
APA Zhang, Haoqiang,Liu, Lin,Pei, Zhiliang,Shi, Nanlin,Gong, Jun,&Sun, Chao.(2020).An effective strategy towards construction of CVD SiC fiber-reinforced superalloy matrix composite.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,49,179-185.
MLA Zhang, Haoqiang,et al."An effective strategy towards construction of CVD SiC fiber-reinforced superalloy matrix composite".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 49(2020):179-185.
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