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Al-Si Alloys pp 211-234 | Cite as

Grain Refinement

  • Francisco C. Robles Hernandez
  • Jose Martin Herrera Ramírez
  • Robert Mackay
Chapter

Abstract

This chapter reviews the fundamental aspects of alloy grain refinement and cover aspects such as the refinement of Al phases, grain growth restriction factor, and effects and applications of refinement in liquid and semisolid states. The primary Si phase in Al-Si hypereutectic alloys is described and analyzed to provide a comprehensive understanding of this phase and the key aspects for its proper refinement. The chapter is then concluded with a grain refinement overview by chemical, mechanical, and thermal methods.

Keywords

Al3Ti AlTi3 Grain refinement Grain growth restriction factor Si refinement Si agglomerates Coarsening Si modifications Al-Si alloys modifications 

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Francisco C. Robles Hernandez
    • 1
  • Jose Martin Herrera Ramírez
    • 2
  • Robert Mackay
    • 3
  1. 1.College of TechnologyUniversity of HoustonHoustonUSA
  2. 2.Centro de Investigación en Materiales AvanzadosChihuahuaMexico
  3. 3.Metallurgical & Heat TreatmentNemak US/Canada Business UnitWindsorCanada

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