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As-cast, age-hardened Cu-Sn-Ni worm gearing and method of making same
As-cast, age-hardened Cu-Sn-Ni worm gearing and method of making same
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机译:铸态,时效硬化的Cu-Sn-Ni蜗杆传动装置及其制造方法
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摘要
Worm gearing having improved wear and strength properties comprises a Cu, 8.0-13.0 w/o Sn, 3.5-5.0 w/o Ni alloy aged in the as-cast condition to strengthen the dendritic microstructural constituent (e.g., alpha phase) while retaining the as-cast, relatively hard interdendritic constituents. The overall Ni concentration of the alloy does not exceed about 5 w/o and the Ni concentration across individual as-cast dendrites is decreased at the dendrite edges (grain boundaries) to hinder formation of a discontinuous, embrittling grain boundary product that is deleterious to these properties.
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机译:具有改善的磨损和强度性能的蜗轮传动装置包括在铸态条件下进行时效处理的Cu,8.0-13.0 w / o Sn,3.5-5.0 w / o Ni合金,以强化树枝状微观结构成分(例如α相),同时保持铸态,相对坚硬的树突状成分。合金的总Ni浓度不超过约5 w / o,各个铸态枝晶中的Ni浓度在枝晶边缘(晶界)降低,从而阻碍了不连续,脆化的晶界产物的形成。这些属性。
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