Structural changes during mechanical alloying of elemental aluminium and molybdenum powders |
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Authors: | M. V. Zdujic K. F. Kobayashi P. H. Shingu |
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Affiliation: | (1) Department of Metal science and Technology, Kyoto University, Sakyo-ku, 606 Kyoto, Japan;(2) Present address: Department of Welding and Production Engineering, Osaka University, Suita, 565 Osaka, Japan |
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Abstract: | Mechanical alloying of elemental aluminium and molybdenum powders was performed by conventional low-energy ball milling. Seven compositions (Al-3, 10, 17, 20, 27, 50 and 75 at% Mo), as well as elemental aluminium and molybdenum powders, were milled up to 1000 h. The structural changes during milling were followed by X-ray diffraction. In all cases milling produced refinement of the microstructure, and prepared powders were microcrystalline with grain sizes of the order of nanometres. A supersaturated solid solution of molybdenum in aluminium was formed. Only for the Al-75 at% Mo powders was a solution of aluminium in molybdenum observed. On leave from Institute of Technical sciences of Serbian Academy of sciences and Arts, Belgrade, Yugoslavia. |
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