NUMERICAL AND EXPERIMENTAL EVALUATION OF STRAY GRAINS FORMATION DURING SINGLE CRYSTAL GROWTH

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GHANBARI M.; SHABESTARI S.G.; ABOUTALEBI M.R.

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Paper Information

Journal: Journal of Metallurgical and Materials Engineering Year:2017 | Volume:28 | Issue:2 Page(s): 13-26

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Title

NUMERICAL AND EXPERIMENTAL EVALUATION OF STRAY GRAINS FORMATION DURING SINGLE CRYSTAL GROWTH

Author(s)

GHANBARI M. | SHABESTARI S.G. | ABOUTALEBI M.R. | Issue Writer Certificate

Keywords

SINGLE CRYSTAL GROWTHQ2

STRAY GRAINS FORMATIONQ2

THERMAL GRADIENTQ2

GROWTH RATEQ2

NUMERICAL SIMULATIONQ2

Abstract

Stray grain formation during SINGLE CRYSTAL GROWTH with GROWTH RATEs of 3, 5 and 7 mm/min has been assessed. The results revealed that increasing the GROWTH RATE resulted in the decrement of THERMAL GRADIENT in the solidification front and caused stray grain formation in the solidification front of the columnar grain growth. Experimental and numerical results showed that a well-oriented<001>single crystal structure is obtained at a GROWTH RATE of 3 mm/min in Ni-based superalloy. Stray grain formation occurred at GROWTH RATEs greater than 3 mm/min, as a result of high GROWTH RATE and low THERMAL GRADIENT.

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APA: Copy

GHANBARI, M., SHABESTARI, S.G., & ABOUTALEBI, M.R.. (2017). NUMERICAL AND EXPERIMENTAL EVALUATION OF STRAY GRAINS FORMATION DURING SINGLE CRYSTAL GROWTH. JOURNAL OF METALLURGICAL AND MATERIALS ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), 28(2 ), 13-26. SID. https://sid.ir/paper/196173/en

Vancouver: Copy

GHANBARI M., SHABESTARI S.G., ABOUTALEBI M.R.. NUMERICAL AND EXPERIMENTAL EVALUATION OF STRAY GRAINS FORMATION DURING SINGLE CRYSTAL GROWTH. JOURNAL OF METALLURGICAL AND MATERIALS ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2017;28(2 ):13-26. Available from: https://sid.ir/paper/196173/en

IEEE: Copy

M. GHANBARI, S.G. SHABESTARI, and M.R. ABOUTALEBI, “NUMERICAL AND EXPERIMENTAL EVALUATION OF STRAY GRAINS FORMATION DURING SINGLE CRYSTAL GROWTH,” JOURNAL OF METALLURGICAL AND MATERIALS ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), vol. 28, no. 2 , pp. 13–26, 2017, [Online]. Available: https://sid.ir/paper/196173/en

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