CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Microstructural characteristics and mechanical behavior of B4Cp/6061Al composites synthesized at different hot-pressing temperatures
Gao, MQ; Chen, ZN; Kang, HJ; Guo, EY; Li, RG; Fu, Y; Xie, HL; Wang, TM
2019
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume35Issue:8Pages:1523—1531
Subtype期刊论文
AbstractB4Cp/6061Al composites have become important structural and functional materials and can be fabricated by powder metallurgy and subsequent hot rolling. In this work, the effects of the hot-pressing temperature on microstructures and mechanical behaviors of the B4Cp/6061Al composites were investigated. The results showed that compared with the T4 heat treated B4Cp/6061Al composite hot pressed at 560 degrees C, the yield strength and failure strain of the composites hot pressed at 580 degrees C were increased to 235 MPa and 18.4%, respectively. This was associated with the interface bonding strength between the B4C particles and the matrix. However, the reaction products, identified to be MgAl2O4 phases, were detected in the composites hot pressed at 600 degrees C. The formation of the MgAl2O4 phases resulted in the Mg depletion, thus reducing the yield strength to 203.5 MPa after the T4 heat treatment due to the effect of the solid solution strengthening being weakened. In addition, the variation of hardness and electrical conductivity was mainly related to the Mg content in the matrix. Based on the as-rolled microstructures observed by SEM, SR-mu CT and fracture surfaces, the deformation schematic diagram was depicted to reflect the tensile deformation process of the composites. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordHIGH-VOLUME FRACTION STRENGTHENING MECHANISMS INTERFACIAL REACTION TENSILE PROPERTIES MATRIX DEFORMATION PARAMETERS CU REINFORCEMENT FABRICATION
DOI10.1016/j.jmst.2019.03.040
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/31710
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Solidificat Control & Digital Preparat Te, Dalian 116024, Peoples R China;
2.Bohai Univ, Engn Inst, Jinzhou 121013, Peoples R China;
3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China
Recommended Citation
GB/T 7714
Gao, MQ,Chen, ZN,Kang, HJ,et al. Microstructural characteristics and mechanical behavior of B4Cp/6061Al composites synthesized at different hot-pressing temperatures[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(8):1523—1531.
APA Gao, MQ.,Chen, ZN.,Kang, HJ.,Guo, EY.,Li, RG.,...&Wang, TM.(2019).Microstructural characteristics and mechanical behavior of B4Cp/6061Al composites synthesized at different hot-pressing temperatures.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(8),1523—1531.
MLA Gao, MQ,et al."Microstructural characteristics and mechanical behavior of B4Cp/6061Al composites synthesized at different hot-pressing temperatures".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.8(2019):1523—1531.
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