1150 パルス通電加圧焼結法による Ti-Ni/Ti 二層合金の作製

概要

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The fabrication of Ti-Ni/Ti bi-layered alloy by elemental powders was attempted by a pulse current pressure sintering. The fabrication conditions of this alloy and its mechanical properties were investigated experimentally. It was found from the observation of microstructure that Ti-Ni layer and Ti layer was bonded well by means of this process, but the transitional phase appeared at the interface between them. The tensile strength and elongation of Ti layer were around 500 MPa and 2%, respectively, and those of Ti-Ni layer were more than 600 MPa and 6%, respectively. While the Ti-Ni/Ti bi-layered alloy fractured at the interface, and the strength an delongation of this alloy were much than those of the Ti layer and the Ti-Ni layer because of remarkable difference in deformation behavior of both layers. It was found from bending tests that the deformation behavior of the bi-layered alloy fairly depends on that of the layer of tension side.
社団法人日本機械学会の論文
2003-08-05