The effects of MO and W on solidification of high speed steels View Full Text


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Article Info

DATE

1974-08

AUTHORS

E. J. Galda, R. W. Kraft

ABSTRACT

The effects of systematic variations in Mo content, W content, and the Mo:W ratio upon the freezing process and as-cast carbide morphology of high speed steels were studied for four series of alloys encompassing the nominal composition ranges of AISI type M2 (6 W-5 Mo-4Cr-2V-0.85C) and MIO (0W-8Mo-4Cr-2 V-0.85C) high speed steels. Thermal analysis, metallographic examination, and quantitative metallography were used to characterize these effects. The Hquidus, peritectic, and eutectic reactions were similarly influenced by molybdenum and tungsten, the peritectic temperature being strongly depressed by additions of either element. The types of carbides found in the as-cast structures did not vary, but the amount of feathery eutectic carbide (a layered structure of MC and M6C) was directly relatedto the total Mo plus W content. The amount of isolated vanadium-rich MC type carbide was seen to increase as the amount of feathery eutectic decreased, and also varied with the Mo:W ratio. More... »

PAGES

1727-1733

References to SciGraph publications

  • 1972-04. Solidification of M2 high speed steel in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf02644134

    DOI

    http://dx.doi.org/10.1007/bf02644134

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