A numerical investigation of the solidification of AL-12.6%SI alloy during mold-vibration

Numan Abu-Dheir, Marwan Khraisheh, Kozo Saito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A simple 1-D numerical model to predict the effect of mold-vibration on the solidification of metals is presented. Mold-vibration during solidification is known to have profound effect on the microstructure and mechanical properties of castings. However, its working mechanism is not well understood yet. Inverse heat conduction method is used to estimate mold/casting heat transfer coefficient, and phase-change during the solidification of Al-12.6%Si. The results for different conditions of vibration are compared. Numerical simulation results show that mold-vibration has changed the heat transfer coefficient in a way dependant on the frequency and amplitude used. Mold-vibration also assisted the phase-change process, by reducing nucleation time and in some cases reducing the solid growth time.

Original languageEnglish
Title of host publicationTMS Annual Meeting
Pages113-122
Number of pages10
Publication statusPublished - 1 Dec 2007
Externally publishedYes
EventMaterials Processing Under the Influence of External Fields - Orlando, FL, United States
Duration: 25 Feb 20071 Mar 2007

Other

OtherMaterials Processing Under the Influence of External Fields
CountryUnited States
CityOrlando, FL
Period25/2/071/3/07

Fingerprint

solidification
Solidification
vibration
Heat transfer coefficients
heat transfer
Heat conduction
Numerical models
Casting
Nucleation
Metals
Mechanical properties
Microstructure
nucleation
Computer simulation
mechanical property
microstructure
metal
simulation
effect

Keywords

  • Casting
  • Mold vibration
  • Mold-casting interface heat transfer coefficient
  • Numerical simulation
  • Solidification time

ASJC Scopus subject areas

  • Geology
  • Metals and Alloys

Cite this

Abu-Dheir, N., Khraisheh, M., & Saito, K. (2007). A numerical investigation of the solidification of AL-12.6%SI alloy during mold-vibration. In TMS Annual Meeting (pp. 113-122)

A numerical investigation of the solidification of AL-12.6%SI alloy during mold-vibration. / Abu-Dheir, Numan; Khraisheh, Marwan; Saito, Kozo.

TMS Annual Meeting. 2007. p. 113-122.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abu-Dheir, N, Khraisheh, M & Saito, K 2007, A numerical investigation of the solidification of AL-12.6%SI alloy during mold-vibration. in TMS Annual Meeting. pp. 113-122, Materials Processing Under the Influence of External Fields, Orlando, FL, United States, 25/2/07.
Abu-Dheir, Numan ; Khraisheh, Marwan ; Saito, Kozo. / A numerical investigation of the solidification of AL-12.6%SI alloy during mold-vibration. TMS Annual Meeting. 2007. pp. 113-122
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