TY - JOUR
T1 - The microstructure and mechanical properties of the B4C/Cu matrix composite fabricated by SPS-HR
AU - Chen, Hong sheng
AU - Zhang, Yu yang
AU - Nie, Hui hui
AU - Wang, Jin feng
AU - Wang, Wen xian
AU - Zhou, Jun
AU - Zhang, Peng
N1 - Funding Information:
This work was supported by National Natural Science Foundation of China [grant number 51775366 and 51505320], which is gratefully acknowledged.
Publisher Copyright:
© 2018, © 2018 Institute of Materials, Minerals and Mining.
PY - 2018/8/13
Y1 - 2018/8/13
N2 - Copper matrix composites containing different volume fractions of B4C particles (0–15%) were first fabricated by spark plasma sintering followed by hot rolling in atmospheric environments, then their microstructures, phase compositions, mechanical properties and sintering mechanism were investigated. It was found that B4C particles distributed relatively homogeneously in the copper matrix. Reaction products of CuC8 and B were observed and identified in the composite. Under increasing B4C particle content, the ultimate tensile, yield strength and elongation to fracture of the composites decreased. Failure mode of composites included: (1) the interfacial debonding and (2) the cleavage fracture of copper. Moreover, micro-discharge between the adjacent particles occurred, and its led to local high temperature at the interface.
AB - Copper matrix composites containing different volume fractions of B4C particles (0–15%) were first fabricated by spark plasma sintering followed by hot rolling in atmospheric environments, then their microstructures, phase compositions, mechanical properties and sintering mechanism were investigated. It was found that B4C particles distributed relatively homogeneously in the copper matrix. Reaction products of CuC8 and B were observed and identified in the composite. Under increasing B4C particle content, the ultimate tensile, yield strength and elongation to fracture of the composites decreased. Failure mode of composites included: (1) the interfacial debonding and (2) the cleavage fracture of copper. Moreover, micro-discharge between the adjacent particles occurred, and its led to local high temperature at the interface.
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U2 - 10.1080/02670836.2018.1460042
DO - 10.1080/02670836.2018.1460042
M3 - Article
AN - SCOPUS:85045722841
SN - 0267-0836
VL - 34
SP - 1460
EP - 1467
JO - Materials Science and Technology (United Kingdom)
JF - Materials Science and Technology (United Kingdom)
IS - 12
ER -