ELEKTRON 21-A NEW AEROSPACE MAGNESIUM ALLOY

摘要

Sand cast magnesium alloys have been used in aerospace applications for many and a series of new alloys has steadily improved the temperature-property envelope However most of these alloys have poor corrosion performance and so are deemed not for new applications. The development of yttrium containing alloy Eiektron WE43 by Magnesium Elektron sought to produce a high performance alloy with good corrosion performance. This achieved, but the alloy can suffer from casting difficulties if stric operational parameters are not adhered to. This can have an adverse impact on the property versus cost spectrum.