ZrCl4によるマグネシウムへのZr添加における2,3の問題について
1957 年 7 巻 1 号 p. 55-61,35
詳細
1957 年 7 巻 1 号 p. 55-61,35
Some problems on the alloying zirconium with magnesium through ZrCl4 were investigated.
The losses of thorium and rare earths in magnesium by adding ZrCl4 were also studied. The result as follows:
(1) As for the properties of ZrCl4 and ZrCl4-KCl-NaCl fused salt, it is found that the latter is more stable against moisture and heat than the former, but their alloying efficiencies are the same.
(2) The impurities, such as aluminium, silicon and iron, inhibit the alloying of zirconium with magnesium. According to the experiment of alloying zirconium with magnesium various grades, it was recognized that the more amounts of impurities, the more loss of zirconium results in.
(3) Zirconium in the molten magnesium are segregate on the botton of crucible, in the forms of zirconium rich particles, free zirconium, etc. If the killing time is long, the dissolved zirconium in magnesium also tends to segregate.
