Effect of La Addition in W Skeleton on Microstructure and Properties of WCu Alloy

Abstract:

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In order to improve properties of WCu alloy, the different La were introduced into W skeleton during sintering process. The hardness, electrical conductivity and the compression stress were tested, and the microstructure and composition were characterized by a scanning electron microscope. The results show that an appropriate rare earth La addition can purify W/W interface, enhance the bonding of W /W, and improve the densification and the integral properties of WCu alloy. In the range of experiments, WCu alloy with 0.3wt% La addition has the largest hardness value of 198HB and the maximum compression stress of 823N/mm2. In comparison with that without La addition, 0.3wt%La addition decreases the electrical conductivity slightly, but improves the hardness and the maximum compression stress significantly, which are increased by 23.6% and 57.2%, respectively.

Info:

Periodical:

Advanced Materials Research (Volumes 160-162)

Edited by:

Guojun Zhang and Jessica Xu

Pages:

1606-1610

DOI:

10.4028/www.scientific.net/AMR.160-162.1606

Citation:

B. Wang et al., "Effect of La Addition in W Skeleton on Microstructure and Properties of WCu Alloy", Advanced Materials Research, Vols. 160-162, pp. 1606-1610, 2011

Online since:

November 2010

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Price:

$35.00

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