publication . Article . 2008

grain refinement of az31 magnesium alloy by al ti c y master alloy

Chunxiang XU; Binfeng LU; Zhengling LÜ; Wei LIANG;
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  • Published: 10 Sep 2008 Journal: Journal of Rare Earths, volume 26, pages 604-608 (issn: 1002-0721, Copyright policy)
  • Publisher: Elsevier BV
Abstract
Abstract Al-Ti-C-Y master alloy was prepared by combining SHS technique and melting-casting method. The microstructure of master alloy and its grain-refining effect on AZ31 alloy were investigated by means of OM, XRD, SEM and EDS. Experimental results indicated that the prepared master alloy consisted of α-Al, TiAl 3 , TiC and Al 3 Y phases, and exhibited good grain-refining performance of AZ31 alloy. Morphology of α-Mg changed from coarse dendritic to fine equiaxed and the average grain size of α-Mg matrix reduced from the original 580 to 170 μm after adding 1.0 wt.% master alloy. The grain refining efficiency of Al-Ti-C-Y master alloy on AZ31 alloy was mainly ...
Subjects
free text keywords: General Chemistry, Geochemistry and Petrology, Alloy, engineering.material, engineering, Microstructure, Materials science, Grain growth, Grain boundary, Metallurgy, Equiaxed crystals, Grain size, Nucleation, Magnesium alloy
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