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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 17    No. 6    December 2007

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Effect of TiC whisker addition on properties ofYG10F alloy
LU De-ping(陆德平), LIU Ke-ming(刘克明), LU Lei(陆 磊),CHEN Zhi-bao(陈志宝), ZENG Wei-jun(曾卫军)

Institute of Applied Physics, Jiangxi Academy of Sciences, Nanchang 330029, China

Abstract:The cemented carbide material (YG10F) with different additions of TiC whisker (0%, 0.3%, 0.6%, mass fraction) was prepared by different techniques. The effect of TiC whisker addition on the density, microhardness and toughness of the experimental material was investigated. The results indicate that after the wet-milling for 8 h and sintering in vacuum at 1 440 ℃, the toughness of YG10F is remarkably improved and meanwhile higher microhardness is obtained by 0.3% TiC whisker addition. Preliminary analysis suggests that the main toughening mechanism of TiC whisker in YG10F is whisker pull-out and bridging phenomena.

 

Key words: TiC whisker; cemented carbide; toughness

ISSN 1672-7029
CN 43-1423/U

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