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Meeting Materials Science & Technology 2019
Symposium Mechanochemical Synthesis and Reactions in Materials Science IV
Presentation Title Effect on Phase Evolution and Thermal Stability of Mechanically Alloyed AlCoCrFeNi High-entropy Alloy on Addition of Mn and Ti
Author(s) Nilay Krishna Mukhopadhyay, Vikas Shivam, Joysurya Basu
On-Site Speaker (Planned) Nilay Krishna Mukhopadhyay
Abstract Scope High entropy alloys (HEAs) are a new class of materials gaining significant attention due to their promising properties with a wide range of potential applications. Here, we have studied the phase evolution and thermal stability of the widely reported AlCoCrFeNi HEA on the addition of Mn and Ti. In this context, first the AlCoCrFeNi HEA has been synthesized by mechanical alloying with single phase BCC (a=2.89, approx.) structure. No change in structure was observed due to addition of Mn and Ti in AlCoCrFeNi HEA separately. Thermal stability of both the alloys has been investigated through dynamic DSC, in-situ XRD and suitable thermal treatments. Consolidated samples showed the partial transformation of the disordered solid solution phase in to the ordered phases. Attempts have been made to understand the thermo-physical properties of the alloys and correlate with the thermodynamic criteria for solid solution phase formation in multicomponent alloys.
Proceedings Inclusion? Planned: Other (journal publication, etc.; describe below)

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Mechanochemical Effect in Cutting of Ductile Metals
Easy Access to Copper-antimony Mixed Sulfides (CuxSbySz): Mechanochemical Synthesis, and Structural and Surface Analysis
Effect on Phase Evolution and Thermal Stability of Mechanically Alloyed AlCoCrFeNi High-entropy Alloy on Addition of Mn and Ti
First Hydrogenation Characteristic of TiFe + 4wt% Zr + 2wt% Mn Alloy after Air Exposure and Reactivation by Mechanical Treatment
In-situ Synthesis of AlN-CNT Nanocomposites by Mechanochemical Reaction of Al and Melamine
Influence of Al Addition on Phase Evolution and Thermal Stability of CoCrFeNiTi High-entropy Alloy Processed by Mechanical Alloying
Mechanically Activated Combustion Synthesis of Nb5Si3/Nb Composites
Mechanically Activated SHS of Silicon-based Nanostructured Materials
Mechanically Alloyed Nanostructured Steels
Mechanically Driven Phase Transformation in Sn Reinforced Al-Cu-Fe Quasicrystalline Matrix Nanocomposite: Influence of Mechanical Milling and Cryomilling
Metallic Glasses Reinforced Al Alloy Matrix Composites
Nanocrystalline Maraging Steel Powder Fabricated by Mechanical Milling and their Thermal Stability
Neutron Total Scattering Analysis of Materials Processed by Far-from-equilibrium Methods
P2-64: Ionic Conductors Synthesized by Mechanochemistry: Exploring the ZrO2-Y2O3-Gd2O3 System.

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