TY - JOUR
T1 - Role of zirconium diboride particles on microstructure and wear behaviour of AA7075 in situ aluminium matrix composites at elevated temperature
AU - David Raja Selvam, J.
AU - Dinaharan, I.
AU - Rai, Rajakumar S.
AU - Mashinini, P. M.
N1 - Publisher Copyright:
© 2019, © 2019 Institute of Materials, Minerals and Mining and Informa UK Limited, trading as Taylor & Francis Group.
PY - 2019/10/2
Y1 - 2019/10/2
N2 - The present research work examines the impact of temperature on the dry sliding wear behaviour of AA7075 aluminium strengthened zirconium diboride (ZrB2) particulate composite (0, 3, 6, 9 and 12 wt.%). The dry sliding wear behaviour of the AMCs was inspected utilizing a pin-on-disc machine at differing temperatures (40, 60, 120, 180 and 240°C). The wear resistance of AMCs improved with the increased substance of ZrB2 particulates at all test temperatures. The worn surface of the AMC pins was described utilizing FESEM. It was found from the SEM micrographs of worn surface, that at different temperatures, adhesion and metal flow were the prime wear process of the AA7075 composites, while for in situ formed AMCs, metal stream and oxidation were the factors affecting the wear process. The worn surface of the AMCs showed that there was a modification in wear component from abrasive wear to metal flow.
AB - The present research work examines the impact of temperature on the dry sliding wear behaviour of AA7075 aluminium strengthened zirconium diboride (ZrB2) particulate composite (0, 3, 6, 9 and 12 wt.%). The dry sliding wear behaviour of the AMCs was inspected utilizing a pin-on-disc machine at differing temperatures (40, 60, 120, 180 and 240°C). The wear resistance of AMCs improved with the increased substance of ZrB2 particulates at all test temperatures. The worn surface of the AMC pins was described utilizing FESEM. It was found from the SEM micrographs of worn surface, that at different temperatures, adhesion and metal flow were the prime wear process of the AA7075 composites, while for in situ formed AMCs, metal stream and oxidation were the factors affecting the wear process. The worn surface of the AMCs showed that there was a modification in wear component from abrasive wear to metal flow.
KW - Aluminum matrix composite
KW - temperature
KW - wear
KW - zirconium diboride
UR - http://www.scopus.com/inward/record.url?scp=85072046610&partnerID=8YFLogxK
U2 - 10.1080/17515831.2019.1661709
DO - 10.1080/17515831.2019.1661709
M3 - Article
AN - SCOPUS:85072046610
SN - 1751-5831
VL - 13
SP - 230
EP - 238
JO - Tribology - Materials, Surfaces and Interfaces
JF - Tribology - Materials, Surfaces and Interfaces
IS - 4
ER -