발간논문

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Vol.31, No.12, 1563 ~ 1572, 1993
Title
Effect of Sn on the Mechanical Properties of Sintered Fe - Pb - Cu Alloy
이흥열H . Y . Lee, 임태홍T . H . Yim, 나형용H . Y . Ra
Abstract
The original and most widely used P/M self-lubricating bearing material is bronze but iron-based bearings have the merits that they have the higher strength and cheaper than copper-based bearings so that its use has risen recently. So in this study, microstructure and mechanical properties of the Fe-Pb-Cu and Fe-Pb-Cu-Sn bearings sintered at 840∼960℃ and driving performance test of bearings after sizing sintered bearings are investigated. In case of Sn addition with 0.5∼2wt% to Fe-8Pb-2Cu, pore distribution was uniform and Pb segregation was reduced. And the coefficient of friction and temperature-rise were small. Pb is distributed uniformly at interparticle and grain boundarys because the wettability of Pb increased and Sn in iron increased diffusion rate during sintering.
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