Cu-Sn-Pb系合金の機械的性質ならびに耐磨耗性に及ぼすNi-B化合物添加の影響

概要

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As the recent bearings have been applied under higher load and insufficient lubrication, bearing materials should be further improved to have better anti-wear property.<BR>In order to obtain bearing materials of better anti-wear property under such conditions as edged loading and boundary lubrication, we have studied sinterd composite alloys having the steel back by adding Ni-B compound, as the wear resistant particle, to the relatively soft Cu-3.5wt%Sn-23wt%Pb alloy base. Mechanical properties and wear resistance were investigated for these composite alloys. Test results showed that hardness and tensile strength increased gradually by adding the amount of Ni-B hard compound, and that the anti-wear property of composite alloys with 3-8wt% of Ni-B addition was four times better than that of the conventional Cu-3.5wt%Sn-23wt%Pb alloy.
社団法人粉体粉末冶金協会の論文