Investigation of In situ Cu-TiB^sub 2^ Composite on the Copper Using Laser Melting Synthesis

A surface composite layer reinforced with TiB^sub 2^ particles was produced on copper by use of the laser remelting in situ synthesis. The microstructure, electrical conductivity, and sliding wear behavior of the in situ Cu-TiB^sub 2^ composite were investigated. The experimental results show that t...

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Bibliographic Details
Published inJournal of materials engineering and performance Vol. 16; no. 5; p. 554
Main Authors Gu, Ly, Liang, Gy, Zheng, Zb
Format Journal Article
LanguageEnglish
Published New York Springer Nature B.V 01.10.2007
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Summary:A surface composite layer reinforced with TiB^sub 2^ particles was produced on copper by use of the laser remelting in situ synthesis. The microstructure, electrical conductivity, and sliding wear behavior of the in situ Cu-TiB^sub 2^ composite were investigated. The experimental results show that the size of reinforcing TiB^sub 2^ particles is about 800 nm and the microhardness of composite layer reaches HV 210. Although the electrical conductivity of the composite layer is reduced with increasing TiB^sub 2^ volume fraction, the decrease of the integrated conductivity of the samples containing composite layer and copper substrate is insignificant. The wear resistance of composite layer is 10 times better than that of the copper sample.[PUBLICATION ABSTRACT]
ISSN:1059-9495
1544-1024
DOI:10.1007/s11665-007-9089-0