抵抗焼結法による繊維強化金属の製造の試み

概要

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With the purpose to find the possibility of obtaining sound and strong composite materials by use of resistance-sintering process, mixture of steel wires or iron whiskers and iron or aluminium powders were resistance-sintered into fiber reinforced metals. The influence of the resistance-sintering conditions on the mechanical properties and micro-structures of the obtained composite products were studied. Products of 95% density-ratio were easily obtained by the process with no control of atmosphere. In the case of composites reinforced with steel wire (tensile strength of the fiber σf=280 kg/mm2) of fiber volume ratio V f=0.20, the tensile strength of iron composite, σ c showed 58 kg/mm2 for tensile strength of iron matrix σ m=30 kg/mm2, while that of aluminium composite 56 kg/mm2 for tensile strength of aluminium matrix σ m=10 kg/mm2. Iron composite reinforced with iron whisker (of V f=0.20) showed a very large elongation.
社団法人粉体粉末冶金協会の論文