Cristin-resultat-ID: 1071312
Sist endret: 1. desember 2013, 21:28
Vitenskapelig foredrag

Prediction of as-cast grain size of inoculated multicomponent aluminum alloys

  • Qiang Du og
  • Yanjun Li


Navn på arrangementet: 6th International Conference on Solidification and Gravity
Sted: Miskolc-Lillafured
Dato fra: 2. september 2013
Dato til: 5. september 2013

Om resultatet

Vitenskapelig foredrag
Publiseringsår: 2013

Beskrivelse Beskrivelse


Prediction of as-cast grain size of inoculated multicomponent aluminum alloys


In this paper, an extended Maxwell-Hellawell numerical grain size prediction model is employed to predict as-cast grain size of inoculated aluminum alloys. Given melt composition, inoculation and cooling conditions, the model is able to predict maximum nucleation undercooling, cooling curve and final as-cast grain size of multi-component alloys. The proposed model has been applied to various binary and multicomponent alloys. Upon analyzing the numerical simulation results, it is found that for both binary and multi-component alloys, grain size does not have a one-to-one relation with Growth Restriction Factor, Q, but has a clear ubiquitous correlation with the average diffusivity-weighted Q, defined as R in this paper. This founding helps solve the controversy seen in the recent work on analytical grain size and Q relations. It also has been used to interpret the scatters seen in the measured grain size as a function of and Q valuesdata reported in the literature.


Qiang Du

  • Tilknyttet:
    ved Metallproduksjon og prosessering ved SINTEF AS

Yanjun Li

  • Tilknyttet:
    ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet
1 - 2 av 2