| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Advanced Materials for Harsh Environments
|
| Presentation Title |
Scandium-containing Filler Material for Welding Aircraft Castings Made of High-temperature Magnesium-based Alloy |
| Author(s) |
Vadim Shalomeev, Sergei Sheyko, Ievgeniia Chetvertak |
| On-Site Speaker (Planned) |
Ievgeniia Chetvertak |
| Abstract Scope |
Based on the results of the systematic research of structure and multi-component phases, formation filler material which contains scandium for aviation casting welding from the alloy of the system Mg-Zr-Nd was developed. Scandium influence in the filler magnesium alloy on its mechanical and special properties was studied. It was found that modifying of magnesium alloy by scandium in a quantity up to 0,05…0,07 % allows to get a fine-grained structure, increased level of mechanical properties and heat-resistance through complex intermetallic phases and hard solution microalloying formation. Aviation cast details welding produced from magnesium alloy by filler material which contains scandium allows to get a welding seam with a dense homogeneous fusion and around-seam zones without any defects. Applying of the filler material which contains scandium for welding products from the alloy of the system Mg-Zr-Nd allows increasing significantly mechanical properties, heat-resistance and reliability of aviation constructions as a whole. |