Processing, microstructure and mechanical characterization of a new magnesium based multicomponent alloy

Tun, Khin Sandar; Nahata, Anchal; Vincent, S.; Gupta, Manoj

doi:10.1016/j.matpr.2019.12.349

Cited by 8 publications

(2 citation statements)

References 11 publications

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“…These results indicate that the detected peaks of the studied materials align with those in past works involving cast and extruded (DMD) Mg 70 Al 18 Zn 6 Ca 4 Y 2 [9,10], indicating that the crystalline structure and phases formed within these materials are similar to those in previous efforts. This can be corroborated by the AlMg 2 Zn (previously identified as Al x Mg y Zn y ) , Al 2 Ca, and Al 2 Y previously detected by SEM and EDS characterization, with similar observations of Al 4 Ca phases coexisting with the Al 2 Y phases identified [9].…”

Section: X-ray Diffractionsupporting

confidence: 84%

“…As far as Mg-based materials are concerned, an MCA of particular interest is the lightweight Mg 70 Al 18 Zn 6 Ca 4 Y 2 (atomic weight%) low-entropy alloy [9,10], exhibiting reasonable ductility and overcoming previous trends of brittleness associated with Aland Mg-based lightweight MCAs due to presence of secondary phases. This alloy is also notable for having exhibited mechanical properties (hardness, strength) far in excess of any available commercial alloy in its extruded form, which positions it as a prospect for further exploration in a class of next-generation materials suitable for use in structural applications.…”

Section: Introductionmentioning

confidence: 99%

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Enhancing Multiple Properties of a Multicomponent Mg-Based Alloy Using a Sinterless Turning-Induced Deformation Technique

Johanes,

Bin Gombari,

Gupta

2023

Technologies

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A magnesium-based multi-component alloy (MCA), Mg70Al18Zn6Ca4Y2, was successfully synthesized using the Turning-Induced Deformation (TID) method, with promising improvements in multiple properties such as damping capabilities, hardness (11% to 34% increase), and strength (5% to 15% increase) over its conventional cast and extruded equivalent which has already been established as a high-performance MCA exhibiting superior mechanical properties over other Mg-based materials while retaining acceptable ductility. This new TID-based MCA comes only at a slight compromise in the aspects of ductility, ignition resistance, and corrosion resistance, which was previously observed in other TID-based materials. In addition, the general microstructure and secondary phases of this MCA were retained even when using the TID method, with only minimal porosity (<1%) incurred during the process. Furthermore, the ignition temperature of the TID Mg70Al18Zn6Ca4Y2 remained very high at 915 °C, positioning it as a potential Mg-based material suitable for aerospace applications with a high ignition resistance. This is tantamount to a successful application of TID to yet another class of Mg-based materials and opening the door to future explorations of such materials.

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Section: X-ray Diffractionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%