Creep Resistant Magnesium Diecasting Alloys Based on Alkaline Earth Elements
Creep Resistant Magnesium Diecasting Alloys Based on Alkaline Earth Elements
复制标题
基于碱土元素的抗蠕变镁压铸合金
DOI：
--
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
E. Baril
中科院分区：
文献类型：
--
作者：
M. Pekguleryuz;E. Baril
镁在汽车中的使用目前仅限于低温结构部件。其在变速箱和发动机部件等高温结构部件中的使用需要开发具有成本效益的合金，以满足这些部件对强度和抗蠕变性的高温（150-175°C）性能要求。众所周知，添加稀土元素如 Ce Nd、Pr 和 Mg 可以改善蠕变性能。 Mg-4Al-2 稀土合金 AE42 是在 150°C 下具有良好抗蠕变性的含稀土镁压铸合金的一个例子。本文讨论了一类含有 Ca 和 Sr 等碱土元素的新型镁合金，它具有优异的蠕变性能。
The automotive use of magnesium is currently restricted to low-temperature structural components. Its use in elevated-temperature structural components such as transmission and engine parts requires the development of cost-effective alloys that can meet the elevated-temperature (150-175°C) performance requirements of these components for strength and creep resistance. Rare-earth additions such as Ce Nd, Pr to Mg are known to improve the creep performance. An example of a rare-earth containing magnesium diecasting alloy with good creep resistance at 150°C is the Mg-4Al-2 rare-earth alloy AE42. This paper discusses a new class of magnesium alloys containing alkaline earth elements such as Ca and Sr, which offers excellent creep performance.