Amorphization by Compound-Element Milling in Al- TM(TM=Mn, Fe, Co and Ni) Binary System

概要

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A compound-element milling process was employed to fabricate Al-based amorphous alloys. Amorphous phases with a blend composition of Al_<85>Co_<15> and Al_<85>Mn_<15> were obtained by mechanical alloying (MA) for the mixture of Al and monoclinic Al_<13>Co_4 powders and Al and orthorhombic Al_<11>Mn_4 powders which could not be obtained by milling Al and Co or Mn elemental powders. Avail of the MA from the compound and element is due to the enhancement of efficiency during milling by leaving out the welding and supressing the agglomeration of the powders in the process. Mechanism of the amorphization were discussed together with mechanical grinding of the compound. We assert that the MA of Al and its compounds is a available process to produce amorphous phases in Al-enriched(Al>85 at%) alloys.compound-element mechanical alloyingamorphizationaluminum- transition metal
東北大学の論文
1995-03-30