Effect of h-BN content on the sintering of SS316L/h-BN composites

Conference proceedings article

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Publication Details

Author list: Mahathanabodee S., Palathai T., Raadnui S., Tongsri R., Sombatsompop N.

Publisher: Trans Tech Publications

Publication year: 2012

Volume number: 410

Start page: 216

End page: 219

Number of pages: 4

ISBN: 9783037853160

ISSN: 1022-6680

eISSN: 1662-8985

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84255201120&doi=10.4028%2fwww.scientific.net%2fAMR.410.216&partnerID=40&md5=e7caa06ec35937cd0d0f6f3e609faae2

Languages: English-Great Britain (EN-GB)

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Abstract

In this work, the three compositions of hexagonal boron nitride (10, 15 and 20 vol. %)-embedded 316L stainless steel (SS316L/h-BN) composites were prepared by a conventional powder metallurgy technique and then sintered at varying temperatures of 1100 to 1250ฐC for 60 min in H 2 atmosphere. The h-BN content and sintering temperature were found to affect the microstructure and hardness of the composites. The hardness decreased with increasing h-BN content and was improved by increasing the sintering temperature. Microstructure results revealed that the boride phase was formed at the grain boundary at the sintering temperature higher than 1150ฐC and the boride phase formation was observed to transform the h-BN in the composites.

Keywords

Composite, Hexagonal boron nitride, Sliding wear