|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||Solidification Processing of Light Metals and Alloys: An MPMD Symposium in Honor of David StJohn
||Hot Tearing in Magnesium Alloys
||Norbert Hort, Jiangfeng Song, Mark A. Easton
|On-Site Speaker (Planned)
Most commonly, alloys are first molten and then cast. During solidification (influenced by solidification parameters like melt/mould temperature, solidification rate) the alloys shrink and due to constraints from the mould, strains and stresses can build up. This can lead to cracking during solidification which is commonly called hot tearing. Hot tearing has to be regarded as a critical defect and can lead to casting rejects rather than sound material. However, besides mould design alloy design is another way to avoid hot tearing as composition, freezing range, intermetallic phases also affect the hot tearing susceptibility of alloys. In this contribution we will discuss the impact of cooling conditions and composition on the hot tearing behaviour of Magnesium alloys.