Influences of Ball-Milled Time on Properties and Microstructure of Ultrafine WC-10Co Cemented Carbide

Abstract:

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WC-10Co nanocomposite powders prepared by spray pyrogenation-continuous reduction and carburization technology were consolidated by vacuum sintering plus hot isostatic pressing (HIP). Influences of ball-milled time on properties and microstructure of ultrafine WC-10Co cemented carbide were investigated. The results show that ultrafine WC-10Co cemented carbides can reach 99.79% relative density, and transverse rupture strength is more than 3750MPa, Rockwell A hardness is more than 92.6, the average grain size is less than 440 nm, when ball-milled time is 48 hours, ultrafine WC-10Co cemented carbide with excellent properties and fine microstructure is obtained. The optimum ball-milling time is 48 hours.

Info:

Periodical:

Solid State Phenomena (Volumes 121-123)

Edited by:

Chunli BAI, Sishen XIE, Xing ZHU

Pages:

159-162

DOI:

10.4028/www.scientific.net/SSP.121-123.159

Citation:

X. L. Shi et al., "Influences of Ball-Milled Time on Properties and Microstructure of Ultrafine WC-10Co Cemented Carbide", Solid State Phenomena, Vols. 121-123, pp. 159-162, 2007

Online since:

March 2007

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Price:

$35.00

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