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Rare Metals

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24-11-2018

Friction and wear properties of PM cam materials with different boron contents

Authors: Rui Wang, Lin-Shan Wang, Xue-Bing Liang, Wang Zhang, Yan-Ru Mu, Jing-Jie Xu, Li-Min Wang, Shao-Ming Zhang

Published in: Rare Metals | Issue 12/2023

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Abstract

In this study, effects of B addition on the sintering densification, microstructure, hardness, friction and wear properties of sintered Fe-2.4C-4Cr-1Mo-0.5P-0.7Si-2.5Cu (in wt%) were investigated. In spite of the decreased sintered density, the addition of B changes the phase composition of the materials and their ratio. Moreover, hardness of either the matrix or the liquid solidification structure dramatically increases. These changes in microstructure result in higher friction coefficient and lower wear loss. It is observed that the addition of 0.1 wt%B offers the optimum friction and wear properties with a running-in period of only 30 s and wear volume loss of 0.006 mm³ under the testing conditions. Such friction and wear properties are superior to those of the other two widely used cam materials, cast iron and 45 steel.

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Title: Friction and wear properties of PM cam materials with different boron contents
Authors: Rui Wang
Lin-Shan Wang
Xue-Bing Liang
Wang Zhang
Yan-Ru Mu
Jing-Jie Xu
Li-Min Wang
Shao-Ming Zhang
Publication date: 24-11-2018
Publisher: Nonferrous Metals Society of China
Published in: Rare Metals / Issue 12/2023
Print ISSN: 1001-0521
Electronic ISSN: 1867-7185
DOI: https://doi.org/10.1007/s12598-018-1127-6

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