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Tribological Behavior of Si3N4-hBN Ceramic Materials Sliding against Fe-B Alloy without Lubrication

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Abstract:

The tribological behavior of Si3N4-hBN composites sliding on Fe-B alloy without lubrication was investigated by using a pin-on-disc wear tester. The results showed that, the addition of hBN to Si3N4 could not effectively improve the tribological characteristics of Si3N4-hBN when it slid against Fe-B alloy. Without lubrication, the wear of Si3N4-hBN composites was resulted from cracking and fracture, while the hard phase Fe2B in Fe-B alloy spalled off during the friction test. So, high friction coefficients (>0.9) and high wear coefficients (>1×10-5mm3/Nm) were obtained.

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Periodical:

Applied Mechanics and Materials (Volumes 268-270)

Pages:

32-36

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.268-270.32

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Online since:

December 2012

Authors:

Wei Chen, Yi Min Gao, Jian Zhong Chen

Keywords:

Boride, Composite Ceramics, Fe-B Alloy, Tribology

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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