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首页> 美国政府科技报告 >INFLUENCE OF ROLLING TEMPERATURE AND COPPER CONTENT ON CREEP AND OTHER PROPERTIES OF ZINC-COPPER AND ZINC-TITANIUM-COPPER ALLOYS.
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INFLUENCE OF ROLLING TEMPERATURE AND COPPER CONTENT ON CREEP AND OTHER PROPERTIES OF ZINC-COPPER AND ZINC-TITANIUM-COPPER ALLOYS.

机译：轧制温度和铜含量对锌 - 铜 - 锌 - 钛 - 铜合金蠕变及其他性能的影响。

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An evaluation was made of the properties and anisotropy in properties of rolled Zn-Cu and Zn-0.12pct Ti-Cu alloys with various copper additions to 1.25pct. The alloys were rolled cold and at various hot-rolling temperatures to reductions as high as 92pct after breakdown rolling. The properties are extremely sensitive to various combinations of composition,rolling temperature,and rolling reduction. Zn-Cu alloys can develop good creep resistance,but they are inferior in that respect to Zn-Ti-Cu alloys. For alloys either with or without the titanium addition,cold-rolling results in recrystallization of the matrix and rejection of copper from solution,causing poor hardness,tensile,and creep properties,but high ductility. Peak tensile strengths develop when the alloys are rolled in the range 320to 400F. Best creep resistance for Zn-Cu alloys requires higher rolling temperatures when copper content is increased. Creep resistance is best for Zn-Ti-Cu alloys with about 0.75to 1.0pct Cu rolled near 480F. Some copper is soluble in the TiZn15phase,which forms into 'stringers'during rolling. The possible contributions to creep behavior of factors such as distribution of second-phase particles,grain size,and preferred orientation are discussed. (Author)

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