Effect of process parameters on grain structure formation during VAR of INCONEL alloy 718

A. Kermanpur; D. G. Evans; R. J. Siddall; P. D. Lee; M. McLean

doi:10.1023/B:JMSC.0000048729.68319.f0

Effect of process parameters on grain structure formation during VAR of INCONEL alloy 718

A. Kermanpur, D. G. Evans, R. J. Siddall, P. D. Lee, M. McLean

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The development of grain structure during Vacuum Arc Remelting (VAR) of INCONEL alloy 718, a nickel-based superalloy, is complex depending both on compositional variations and a range of process parameters. A multiscale model is presented which combines a macroscopic solution of the heat transfer, fluid flow and electromagnetism with a mesoscopic model of grain nucleation and growth. The model was used to investigate the influence of variations in process control parameters upon the macroscopic molten pool size and shape, together with the predicted grain structure. Simulations of structures produced for variations in melt rate, arc power and arc focus (both thermal and electrical) were compared with observations from instrumented and characterized plant-trials for steady state melting conditions; good agreement was achieved.

Original language	English
Title of host publication	Journal of Materials Science\|J Mater Sci
Pages	7175-7182
Number of pages	7
Volume	39
DOIs	https://doi.org/10.1023/B:JMSC.0000048729.68319.f0
Publication status	Published - 15 Dec 2004

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title = "Effect of process parameters on grain structure formation during VAR of INCONEL alloy 718",

abstract = "The development of grain structure during Vacuum Arc Remelting (VAR) of INCONEL alloy 718, a nickel-based superalloy, is complex depending both on compositional variations and a range of process parameters. A multiscale model is presented which combines a macroscopic solution of the heat transfer, fluid flow and electromagnetism with a mesoscopic model of grain nucleation and growth. The model was used to investigate the influence of variations in process control parameters upon the macroscopic molten pool size and shape, together with the predicted grain structure. Simulations of structures produced for variations in melt rate, arc power and arc focus (both thermal and electrical) were compared with observations from instrumented and characterized plant-trials for steady state melting conditions; good agreement was achieved.",

author = "A. Kermanpur and Evans, {D. G.} and Siddall, {R. J.} and Lee, {P. D.} and M. McLean",

year = "2004",

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doi = "10.1023/B:JMSC.0000048729.68319.f0",

language = "English",

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pages = "7175--7182",

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T1 - Effect of process parameters on grain structure formation during VAR of INCONEL alloy 718

AU - Kermanpur, A.

AU - Evans, D. G.

AU - Siddall, R. J.

AU - Lee, P. D.

AU - McLean, M.

PY - 2004/12/15

Y1 - 2004/12/15

N2 - The development of grain structure during Vacuum Arc Remelting (VAR) of INCONEL alloy 718, a nickel-based superalloy, is complex depending both on compositional variations and a range of process parameters. A multiscale model is presented which combines a macroscopic solution of the heat transfer, fluid flow and electromagnetism with a mesoscopic model of grain nucleation and growth. The model was used to investigate the influence of variations in process control parameters upon the macroscopic molten pool size and shape, together with the predicted grain structure. Simulations of structures produced for variations in melt rate, arc power and arc focus (both thermal and electrical) were compared with observations from instrumented and characterized plant-trials for steady state melting conditions; good agreement was achieved.

AB - The development of grain structure during Vacuum Arc Remelting (VAR) of INCONEL alloy 718, a nickel-based superalloy, is complex depending both on compositional variations and a range of process parameters. A multiscale model is presented which combines a macroscopic solution of the heat transfer, fluid flow and electromagnetism with a mesoscopic model of grain nucleation and growth. The model was used to investigate the influence of variations in process control parameters upon the macroscopic molten pool size and shape, together with the predicted grain structure. Simulations of structures produced for variations in melt rate, arc power and arc focus (both thermal and electrical) were compared with observations from instrumented and characterized plant-trials for steady state melting conditions; good agreement was achieved.

U2 - 10.1023/B:JMSC.0000048729.68319.f0

DO - 10.1023/B:JMSC.0000048729.68319.f0

M3 - Conference contribution

VL - 39

SP - 7175

EP - 7182

BT - Journal of Materials Science|J Mater Sci

ER -

Effect of process parameters on grain structure formation during VAR of INCONEL alloy 718

Abstract

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