Electrode tip melting simulation during vacuum arc remelting of Inconel 718
Conference
·
OSTI ID:5972728
The goal of this paper is to present a tool to simulate transient melting of the electrode tip. This capability is needed to develop and test furnace control algorithms since experimental determination is difficult and expensive. Simulation incorporates parameters (including arc voltage, arc current, electrode gap and furnace pressure) from previous quasisteady experiments with 460 mm diameter Inconel 718 electrodes. Cathode heating rates (determined by classical as well as experimental arc models) are linked to these independent variables. After radiative loss adjustments to the heating, transient one dimensional melting is computed. 10 refs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5972728
- Report Number(s):
- SAND-85-2038C; CONF-860132-3; ON: DE86009380
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
ALLOYS
CHROMIUM ALLOYS
ELECTRODES
INCONEL 718
INCONEL ALLOYS
MATERIALS TESTING
MATHEMATICAL MODELS
MELTING
MELTING POINTS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
TESTING
THERMODYNAMIC PROPERTIES
TRANSIENTS
TRANSITION TEMPERATURE
360102 -- Metals & Alloys-- Structure & Phase Studies
42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
ALLOYS
CHROMIUM ALLOYS
ELECTRODES
INCONEL 718
INCONEL ALLOYS
MATERIALS TESTING
MATHEMATICAL MODELS
MELTING
MELTING POINTS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
TESTING
THERMODYNAMIC PROPERTIES
TRANSIENTS
TRANSITION TEMPERATURE