WANG Lei, FENG Yi cheng, ZHAO Si cong, et al. Effect of Mg10Al2Nd Master Alloy on the Grain Refinement of Mg3Nd Alloy[J]. 2019, 24(5): 7-12.DOI: 1015938/jjhust201905002.
the grain refinement behavior of Mg10Al2Nd master alloy to Mg3Nd alloy was studied by optical microscope (OM)
scanning electron microscope (SEM) and Xray diffraction (XRD) The experimental results showed that Mg10Al2Nd master alloy is composed of αMg and particle Al2Nd phases The addition of Mg10Al2Nd master alloy can refine Mg3Nd alloy
and the refining effect is enhanced as the content of Mg10Al2Nd increases By adding 20% Mg10Al2Nd
the grain size of Mg3Nd alloy was refined from 1242±135 μm to 173±19 μm The mechanism of grain refinement is the synergistic effect of solute effect and heterogeneous nucleation of Al2Nd