TiC添加による液相焼結低合金鋼粉焼結体の特性改善

概要

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The effect of addition of Tic powders on the sintering behavior, microstructure and mechanical properties of atomized low alloy steel powder compacts by liquid phase sintering using Fe-Ni-B master alloy powder has been studied. The rate of grain growth during liquid phase sintering in the specimen with no additive followed a time to the 1/3 power dependence. Small amount of TiC inhibited the grain growth without having been accompanied by a lower densification rate. A good combination of 1000 MPa in strength and 7 % in elongation was obtained in the liquid phase sintered compacts added 1 % TiC with fine upper bainite structure.
社団法人粉体粉末冶金協会の論文