Magnesium Alloys with Enhanced Ignition Resistance for Aerospace and Automotive Applications

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10510889" target="_blank" >RIV/00216208:11320/25:10510889 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1088/1742-6596/3035/1/012013" target="_blank" >https://doi.org/10.1088/1742-6596/3035/1/012013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/3035/1/012013" target="_blank" >10.1088/1742-6596/3035/1/012013</a>

Result language

angličtina

Original language name

Magnesium Alloys with Enhanced Ignition Resistance for Aerospace and Automotive Applications

Original language description

Magnesium alloys, known for their excellent strength-to-weight ratio, are emerging as promising materials in the automotive and aerospace industries. However, due to their high reactivity with oxygen, low ignition temperature and rapid degradation of mechanical properties at elevated temperatures, their applications are limited. In this study, we explored three magnesium alloy systems enriched with rare earth (RE) elements and calcium: Mg-4.5Gd-3.4Y-2.6Ca, Mg-2Y-2Gd-1Ca, and Mg-4Ca-1Y (weight %). These alloys were prepared through casting and then extruded at temperatures of 300 °C, 350 °C, and 400 °C, with extrusion ratios of 11 and 25. This approach allowed us to examine the effects of both composition and processing techniques on the materials. The microstructure primarily consisted of a solid solution of magnesium and the Mg2Ca phase, along with minor amounts of RE-hydrides, RE-oxides, and Mg-RE particles. Notably, extrusion at 400 °C resulted in a larger grain size (5.5 μm) compared to lower extrusion temperatures (around 2.5 μm). The obtained results showed the exceptional ignition resistance of these alloys. The ignition temperature ranged from approximately 950 °C for Mg-2Y-2Gd-1Ca to over 1100 °C for Mg-4.5Gd-3.4Y-2.6Ca and Mg-4Ca-1Y. This high resistance results from the synergistic effects of Y, Gd, and Ca oxides. Compression tests revealed alloys with higher RE content exhibited superior mechanical properties compared to those with more calcium. However, Mg-4Ca-1Y still achieved remarkable ignition resistance.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/GA22-22248S" target="_blank" >GA22-22248S: Ignition-resistant magnesium alloys for aviation applications with tailored composition and microstructure</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Journal of Physics Conference Series

ISBN

—

ISSN

1742-6596

e-ISSN

1742-6596

Number of pages

6

Pages from-to

1-6

Publisher name

Tanger Ltd.

Place of publication

Plzeň

Event location

Plzeň

Event date

Oct 12, 2025

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

001613929300013