Creep resistant pressure cast zinc alloys

抗蠕变压铸锌合金

• 批准号: 221580597
• 负责人: Professor Dr. Günter Gottstein
• 金额: --
• 依托单位: Institut für Metallurgie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/221580597?language=en
• 关键词: Creep; resistant; pressure; cast; zinc

In contrast to iron, aluminum or magnesium base materials, zinc alloys have been investigated only marginally so far and therefore, have not been fully evaluated with respect to their potential as structural materials. Because of the low melting temperature of zinc of 420°C, room temperature is already a high homologous temperature; hence thermally activated processes can easily proceed already at ambient temperature and generally cause a softening of a cast part in service. It is the objective of this project to develop a computer guided alloy and process strategy for the selection and optimization of the mechanical properties of zinc alloys, in particular an improvement of the aging and creep resistance. On the basis of predictions of thermodynamic and kinetic computations, alloys will be produced by pressure casting, investigated with respect to their mechanical properties and iteratively optimized.

与铁、铝或镁基材料相比，锌合金迄今为止只进行了少量的研究，因此，尚未充分评估其作为结构材料的潜力。由于锌的熔点较低，只有420℃，室温已经是较高的同源温度；因此，热活化过程可以很容易地在环境温度下进行，并且通常会导致铸件在使用中软化。本项目的目标是开发一种计算机指导的合金和工艺策略，以选择和优化锌合金的机械性能，特别是提高时效和抗蠕变性能。在热力学和动力学计算预测的基础上，合金将通过压力铸造生产，研究其机械性能并迭代优化。