Forging of Arc-Melted Chromium

Gilbert, H. L.; Johansen, H. A.; Nelson, R.G.

doi:10.1007/bf03397451

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Mechanical Working1

Preparation Of Ductile Metal1

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1954

1972

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Cited by 3 publications

(2 citation statements)

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“…Techniques of working chromium from powder compacts have been described previously (7). The present investigation indicates that ductile sheet may be made by powder metallurgy, but with somewhat more difficulty than the arc-melting process (8). In general, hot work at a temperature of II00~ is necessary while handling the arc-cast metal.…”

Section: Mechanical Workingmentioning

confidence: 68%

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Room-Temperature Ductile Chromium

Johansen¹,

Asai²

1954

J. Electrochem. Soc.

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Development of the effort to find room-temperature ductile chromium is reviewed. Preparation and some mechanical properties of ductile chromium are described, as are techniques of making brittle chromium ductile by removal of surface layers. Reasons for the ductility, or lack of it, are advanced on the basis of experiments showing the effect of certain impurities, mechanical working, and heat treatment. No clear explanation for the surface phenomenon was obtained. Possible future uses of ductile chromium arc discussed.

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Section: Mechanical Workingmentioning

confidence: 68%

“…The hydrogen reduction apparatus described in reference (8) has allowed production of chromium sufficiently pure to be made into ductile metal. In this process, powdered chromium metal is deoxidized with high purity hydrogen at 1200~ for 16 hr.…”

Section: Preparation Of Ductile Metalmentioning

confidence: 99%