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Cold spraying SiC/Al metal matrix composites: effects of SiC contents and heat treatment on microstructure, thermophysical and flexural properties
Gyansah, L; Tariq, NH; Tang, JR; Qiu, X; Feng, B; Huang, J; Du, H; Wang, JQ; Xiong, TY; Wang, JQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
2018-02-01
Source PublicationMATERIALS RESEARCH EXPRESS
ISSN2053-1591
Volume5Issue:2Pages:-
AbstractIn this paper, cold spray was used as an additive manufacturing method to fabricate 5mmthick SiC/Al metal matrix composites with various SiC contents. The effects of SiC contents and heat treatment on the microstructure, thermophysical and flexural properties were investigated. Additionally, the composites were characterized for retention of SiC particulates, splat size, surface roughness and the progressive understanding of strengthening, toughening and cracking mechanisms. Mechanical properties were investigated via three-point bending test, thermophysical analysis, and hardness test. In the as-sprayed state, flexural strength increased from 95.3 MPa to 133.5 MPa, an appreciation of 40% as the SiC contents increased, and the main toughening and strengthening mechanisms were zigzag crack propagation and high retention of SiC particulates respectively. In the heat treatment conditions, flexural strength appreciated significantly compared to the as-sprayed condition and this was as a result of coarsening of pure Al splat. Crack branching, crack deflection and interface delamination were considered as the main toughening mechanisms at the heat treatment conditions. Experimental results were consistent with the measured CTE, hardness, porosity and flexural modulus.; In this paper, cold spray was used as an additive manufacturing method to fabricate 5mmthick SiC/Al metal matrix composites with various SiC contents. The effects of SiC contents and heat treatment on the microstructure, thermophysical and flexural properties were investigated. Additionally, the composites were characterized for retention of SiC particulates, splat size, surface roughness and the progressive understanding of strengthening, toughening and cracking mechanisms. Mechanical properties were investigated via three-point bending test, thermophysical analysis, and hardness test. In the as-sprayed state, flexural strength increased from 95.3 MPa to 133.5 MPa, an appreciation of 40% as the SiC contents increased, and the main toughening and strengthening mechanisms were zigzag crack propagation and high retention of SiC particulates respectively. In the heat treatment conditions, flexural strength appreciated significantly compared to the as-sprayed condition and this was as a result of coarsening of pure Al splat. Crack branching, crack deflection and interface delamination were considered as the main toughening mechanisms at the heat treatment conditions. Experimental results were consistent with the measured CTE, hardness, porosity and flexural modulus.
description.department[gyansah, l. ; tariq, n. h. ; tang, j. r. ; qiu, x. ; feng, b. ; huang, j. ; du, h. ; wang, j. q.] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china ; [gyansah, l. ; tariq, n. h. ; feng, b.] univ chinese acad sci, beijing 100049, peoples r china ; [tang, j. r. ; qiu, x. ; huang, j.] univ sci & technol china, sch mat sci & engn, shenyang 110016, liaoning, peoples r china
KeywordLaminated Zrb2-sic/graphite Ceramics Mechanical-properties Coatings Behavior Al Aluminum Tin Microhardness Powder Copper
Subject AreaMaterials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China [51671205]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79538
Collection中国科学院金属研究所
Corresponding AuthorWang, JQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Gyansah, L,Tariq, NH,Tang, JR,et al. Cold spraying SiC/Al metal matrix composites: effects of SiC contents and heat treatment on microstructure, thermophysical and flexural properties[J]. MATERIALS RESEARCH EXPRESS,2018,5(2):-.
APA Gyansah, L.,Tariq, NH.,Tang, JR.,Qiu, X.,Feng, B.,...&Wang, JQ .(2018).Cold spraying SiC/Al metal matrix composites: effects of SiC contents and heat treatment on microstructure, thermophysical and flexural properties.MATERIALS RESEARCH EXPRESS,5(2),-.
MLA Gyansah, L,et al."Cold spraying SiC/Al metal matrix composites: effects of SiC contents and heat treatment on microstructure, thermophysical and flexural properties".MATERIALS RESEARCH EXPRESS 5.2(2018):-.
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