The effects of argon pressurization on melt rate and arc distribution during vacuum arc remelting of Alloy 718

Technical Report · Sun Mar 01 04:00:00 EST 1992

OSTI ID:10127580

Williamson, R L; Zanner, F J ^[1]; Harrison, R ^[2]; Thompson, R ^[3]

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1. Sandia National Labs., Albuquerque, NM (United States)
2. Cameron Iron Works, Inc., Houston, TX (United States)
3. Teledyne Allvac, Monroe, NC (United States)

The effects of argon addition to the vacuum arc remelting (VAR) process were studied in both laboratory and industrial experiments while remelting Alloy 718. The results demonstrate that argon can be added to an industrial VAR furnace to relatively high partial pressures without decreasing the melt rate, drip-short frequency, or constricting the arc plasma to a local region of the electrode surface. Laboratory experiments illustrate that this result is dependent on electrode chemistry, possibly related to magnesium content.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 10127580
• Report Number(s): SAND--92-0592C; ON: DE92009068
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101
ARGON
INCONEL 718
PARTIAL PRESSURE
PREPARATION AND FABRICATION
PRESSURE EFFECTS
VACUUM MELTING