科研之友
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摘要
Elemental powders of Al-24.4 % Fe (mole fraction) alloy were mechanically-alloyed using a conventional type ball-milling. Not only Fe particles gradually disperse in Al matrix but also Al and Fe crystal grains are refined to the order of ten nanometers after ball-milling for 180 h. The amorphization starts at the early stage of ball milling and proceeds gradually. Complete amorphization is confirmed by ball-milling for 720 h. The amorphization of the powders after ball-milled for 180 h can be promoted by heating up to 673 K, which suggests a possibility of producing amorphous material by appropriate ball-milling and subsequent healing.
- 出版日期1999-12
- 单位上海交通大学
