Influence of La and Ce on Microstructure and Properties of Cu-Cr-Zr Alloy

Abstract:

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The degassing and dedusting mechanism of La and Ce during non-vacuum melting process of Cu-Cr-Zr alloy were analyzed by thermodynamics. The gibbs free energy changes of reactions of La and Ce with some impurties such as O2, H2, S, P and Si, were calculated to discriminate the possibility of reaction during the melting process, respectively. In addition, the effect of La and Ce on microstructure and properties were studied. The results show that La and Ce can react with O2, H2, S, P and Si, which improves the effect of degassing and dedusting remarkably; the addition of La and Ce can eliminate pine-tree crystal, fine grain and clear grain bourdary.

Info:

Periodical:

Advanced Materials Research (Volumes 295-297)

Edited by:

Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu

Pages:

1168-1174

DOI:

10.4028/www.scientific.net/AMR.295-297.1168

Citation:

J. Y. Dai et al., "Influence of La and Ce on Microstructure and Properties of Cu-Cr-Zr Alloy", Advanced Materials Research, Vols. 295-297, pp. 1168-1174, 2011

Online since:

July 2011

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Price:

$35.00

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