Characteristics of Tungsten Alloy Layer Formed at Different Temperatures by Double Glow Plasma Surface Alloying

J Chin Soc Corr Pro

2000, Vol. 20

Issue (1): 59-63 DOI:

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Characteristics of Tungsten Alloy Layer Formed at Different Temperatures by Double Glow Plasma Surface Alloying

Hong Zhang;;

太原理工大学表面工程研究所

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Abstract The formation of tungsten alloy layer on carbon steel by double glow plasma surface alloying has been studied by means of SEM、XRD and other measurements. The surface layer so produced could he divided into three parts: deposition layer, diffusion layer and matrix. The study results showed that the deposition layer was constituted by W with body-centred cubic lattice and preferred orientation. The phase in the diffusion layer was α-Fe solid solution containing W and some carbide FeW3C was found in it. The matrix was T8 carbon steel. With the increase in deposition temperature, the microstructure of the deposition layer changed from the tapered outgrowth to the columnar form. It resulted in the increase of its corrosion-resistance, however, its wear resistance decreased.

Key words: tungsten deposition layer glow discharge plasma surface alloying

Received: 06 January 1999

ZTFLH:

TG172.445

Corresponding Authors: Hong Zhang

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Cite this article:

Hong Zhang. Characteristics of Tungsten Alloy Layer Formed at Different Temperatures by Double Glow Plasma Surface Alloying. J Chin Soc Corr Pro, 2000, 20(1): 59-63 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2000/V20/I1/59

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