Plasma arc melting of zirconium

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Description

Zirconium, like some other refractory metals, has an undesirable sensitivity to interstitials such as oxygen. Traditionally, zirconium is processed by electron beam melting to maintain minimum interstitial contamination. Electron beam melted zirconium, however, does not respond positively to mechanical processing due to its large grain size. The authors undertook a study to determine if plasma arc melting (PAM) technology could be utilized to maintain low interstitial concentrations and improve the response of zirconium to subsequent mechanical processing. The PAM process enabled them to control and maintain low interstitial levels of oxygen and carbon, produce a more favorable grain structure, and ... continued below

Physical Description

6 p.

Creation Information

Tubesing, P.K.; Korzekwa, D.R. & Dunn, P.S. December 31, 1997.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 12 times . More information about this report can be viewed below.

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  • Los Alamos National Laboratory
    Publisher Info: Los Alamos National Lab., Materials Science and Technology Div., NM (United States)
    Place of Publication: New Mexico

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Description

Zirconium, like some other refractory metals, has an undesirable sensitivity to interstitials such as oxygen. Traditionally, zirconium is processed by electron beam melting to maintain minimum interstitial contamination. Electron beam melted zirconium, however, does not respond positively to mechanical processing due to its large grain size. The authors undertook a study to determine if plasma arc melting (PAM) technology could be utilized to maintain low interstitial concentrations and improve the response of zirconium to subsequent mechanical processing. The PAM process enabled them to control and maintain low interstitial levels of oxygen and carbon, produce a more favorable grain structure, and with supplementary off-gassing, improve the response to mechanical forming.

Physical Description

6 p.

Notes

INIS; OSTI as DE98003719

Source

  • 1997 international conference on tungsten, refractory metals and alloys, Lake Buena Vista, FL (United States), 17-19 Nov 1997

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  • Other: DE98003719
  • Report No.: LA-UR--97-4406
  • Report No.: CONF-971168--
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/638217 | External Link
  • Office of Scientific & Technical Information Report Number: 638217
  • Archival Resource Key: ark:/67531/metadc695697

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • December 31, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 3, 2016, 1:35 p.m.

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Citations, Rights, Re-Use

Tubesing, P.K.; Korzekwa, D.R. & Dunn, P.S. Plasma arc melting of zirconium, report, December 31, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc695697/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.