Mg-Zr系合金の合金元素について(第2報)

抄録

The possibility that a parts of alloying elements and Zr which are over the solubility limit in molten Mg alloys make intermetallic compounds was investigated by x-ray analysis. In this experiment 17 kinds of alloying elements were used. When Zr and unfavorable elements such as Al, Fe, Mn and Si are in molten magnesium, Zr makes intermetallic compounds with these elements, i. e., Al₃Zr in Mg-Al-Zr, Fe₂Zr in Mg-Fe-Zr, Mn₂Zr in Mg-Mn-Zr and SiZr₂ in Mg-Si-Zr. Such intermetallic compounds are also made in Mg-Cu-Zr and Mg-Sn-Zr. In other alloys, however, such intermetallic compounds were not observed under the same testing conditions and alloying contents.