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，铝或镁碱材料相比，到目前为止仅对锌合金进行了略微研究，因此尚未在其作为结构材料的潜力方面得到充分评估。由于锌的低熔化温度为420°C，因此室温已经是高同源温度。因此，热激活的过程很容易在环境温度下进行，并且通常会导致铸件服务中的铸件软化。该项目的目的是制定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，特别是改善衰老和蠕变抗性。基于对热力学和动力学计算的预测，合金将通过压力铸造产生，对其机械性能进行研究并进行了迭代优化。