Corpus ID: 119084719

Microstructure and elevated-temperature mechanical properties of refractory AlMo0.5NbTa0.5TiZr High Entropy Alloy fabricated by powder metallurgy

@article{Li2017MicrostructureAE,
  title={Microstructure and elevated-temperature mechanical properties of refractory AlMo0.5NbTa0.5TiZr High Entropy Alloy fabricated by powder metallurgy},
  author={Yuqiao Li and Junho Lee and Byungchul Kang and Soon Hyung Hong},
  journal={arXiv: Materials Science},
  year={2017}
}
New approaches for the design of alloy systems with multiprincipal elements is recently researched in refractory materials field. However, most research aimed at arc melting process with weakness of coarsening of grains and inhomogeneous microstructure of segregation of elements during the cooling. This study aims to design and fabricate high-entropy alloy with powder metallurgy. In this study, a refractory high entropy alloys with composition near AlMo0.5NbTa0.5TiZr were produced by powder… Expand

References

SHOWING 1-10 OF 10 REFERENCES
Microstructure and mechanical properties of twinned Al0.5CrFeNiCo0.3C0.2 high entropy alloy processed by mechanical alloying and spark plasma sintering
Abstract Most of multi-component high entropy alloys (HEAs) only consist of metallic elements. In the present paper, by introducing nonmetallic carbon element, non-equiatomic Al 0.5 CrFeNiCo 0.3 CExpand
Effect of aluminum on the microstructure and properties of two refractory high-entropy alloys
Abstract The microstructure, phase composition and mechanical properties of the AlMo 0.5 NbTa 0.5 TiZr and Al 0.4 Hf 0.6 NbTaTiZr high-entropy alloys are reported. The AlMo 0.5 NbTa 0.5 TiZr alloyExpand
Mechanical alloying synthesis and spark plasma sintering consolidation of CoCrFeNiAl high-entropy alloy
Abstract An equiatomic CoCrFeNiAl high-entropy alloy was synthesized by mechanical alloying, and phase evolutions, microstructure, thermal properties and annealing behaviors were investigated. It wasExpand
Development of a Refractory High Entropy Superalloy
TLDR
The yield strength of this refractory high entropy superalloy is superior to theield strength of Ni-based superalloys in the temperature range of 20 °C to 1200 °C. Expand
Preparation of superfine-grained high entropy alloy by spark plasma sintering gas atomized powder
Abstract In this work, nanocrystalline CrMnFeCoNi HEAs were prepared by powder metallurgy. It was found mechanical milling can further refine the microstructures and morphologies of the gas-atomizedExpand
High-entropy alloy: challenges and prospects
High-entropy alloys (HEAs) are presently of great research interest in materials science and engineering. Unlike conventional alloys, which contain one and rarely two base elements, HEAs compriseExpand
Nanostructured High‐Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes
A new approach for the design of alloys is presented in this study. These high-entropy alloys with multi-principal elements were synthesized using well-developed processing technologies. PreliminaryExpand
Can entropy and order increase together
Abstract Disorder and entropy are formally decoupled in such a way that it is possible for an expanding universe to have periods in which both entropy and order increase simultaneously. Some otherExpand
Microstructure and mechanical properties of twinned Al 0 . 5 CrFeNiCo 0 . 3 C 0 . 2 high entropy alloy processed by mechanical alloying and spark plasma sintering
  • Mater . Des .
  • 2014
Mechanical properties of Nb 25 Mo 25 Ta 25 W 25 and V 20 Nb 20 Mo 20 Ta 20 W 20 refractory high entropy alloys
  • Intermetallics,
  • 2011