Conclusions
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1.
In the compaction of powder mixtures, energy absorption takes place as in the case of pure metals. Relative absorption at first increases, attains a maximum, and then falls off. At high degrees of densification, differential relative absorption becomes negative because of a marked strength loss experienced by materials being compacted.
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2.
Energy absorption is not an additive function of concentration. This finding is supported by a hypothesis postulating the formation of surface solid solutions in the contact zones of powders being compacted.
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3.
Additions of Fe, Cu, and Zn in Al lower energy absorption.
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4.
Additions of Al in Fe, Cu, and Zn increase energy absorption owing to the high absorptive capacity of Al.
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5.
The thickness of the surface solid-solution layers, as calculated from the drop in energy absorption, is of the order of 0.4μ.
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Deceased.
Translated from Poroshkovaya Metallurgiya, No. 9(69), pp. 25–30, September, 1968.
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Kunin, N.F., Yurchenko, B.D. & Myshkina, N.V. Energy relations in the compaction of binary powder mixtures. Powder Metall Met Ceram 7, 688–692 (1968). https://doi.org/10.1007/BF00773732
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DOI: https://doi.org/10.1007/BF00773732