Development of the Chromium-Rich High-Speed Steel: As-Cast Microstructure

Alexander S. Chaus; Martin Sahul; Róbert Sobota

doi:10.4028/www.scientific.net/DDF.400.59

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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 400Development of the Chromium-Rich High-Speed Steel:...

Development of the Chromium-Rich High-Speed Steel: As-Cast Microstructure

Abstract:

The present study has been undertaken to replace W by Cr in as-cast HSSs using B as alloying element. For this reason, a special alloying system was suggested. The basic steel containing approximately 12 wt. % of Cr was alloyed with B, V, V and Mo in different proportions. The microstructure of the steels was studied using electron microscopy, X-ray diffraction, and energy dispersive X-ray analysis. It was shown that the matrix structure, as well as the origin and morphology of the carbides or carboborides formed during solidification greatly depended on the alloy chemical composition.

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Periodical:

Defect and Diffusion Forum (Volume 400)

Pages:

59-64

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.400.59

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Online since:

March 2020

Authors:

Alexander S. Chaus*, Martin Sahul, Róbert Sobota

Keywords:

Alloying Scheme, Chromium, High-Speed Steel, Microstructure

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