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Title: Tuning to more compressible phase in TiZrHfNb high entropy alloy by pressure

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.5136022· OSTI ID:1598008
ORCiD logo [1];  [2];  [1];  [3];  [4];  [5];  [1]; ORCiD logo [6]; ORCiD logo [6];  [5];  [5]; ORCiD logo [1]
  1. Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai (China)
  2. Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai (China); Wuhan Univ. (China)
  3. Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai (China); Northeastern Univ., Boston, MA (United States)
  4. Peking Univ., Shenzhen (China)
  5. Univ. of Science and Technology Beijing (China)
  6. Univ. of Chicago, IL (United States)

In this work, the starting nominal Ti25Zr25Hf25Nb25 high entropy alloy (HEA) has two body centered cubic (BCC) phases with a volume percentage about 100:1, with the primary phase having a much larger bulk modulus (incompressible) than the uniform single-phase HEA. We found that these two phases merged into one single BCC phase at pressures beyond 36 GPa, whose bulk modulus dropped to that of the normal homogeneous HEA. After decompressing, the new phase can be sustained to ambient conditions. We note this abnormal pressure-induced softening was largely related to the lattice distortion evolution and interfacial energy during compression.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
National Natural Science Foundation of China (NSFC); China Postdoctoral Science Fund; National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
11804010; U1530402; 51527801; 2016M600909; FG02-94ER14466; AC02-06CH11357
OSTI ID:
1598008
Journal Information:
Applied Physics Letters, Vol. 116, Issue 3; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

References (47)

Thermodynamic instability of a nanocrystalline, single-phase TiZrNbHfTa alloy and its impact on the mechanical properties journal January 2018
Enhanced strength and ductility in a high-entropy alloy via ordered oxygen complexes journal November 2018
A geometric model for intrinsic residual strain and phase stability in high entropy alloys journal August 2015
Elasticity and constitution of the Earth's interior journal June 1952
Size-dependent plasticity in an Nb25Mo25Ta25W25 refractory high-entropy alloy journal February 2014
An assessment of the lattice strain in the CrMnFeCoNi high-entropy alloy journal January 2017
Local Structure and Short-Range Order in a NiCoCr Solid Solution Alloy journal May 2017
Materials discovery at high pressures journal February 2017
Polymorphism in a high-entropy alloy journal June 2017
Mechanical properties of Nb25Mo25Ta25W25 and V20Nb20Mo20Ta20W20 refractory high entropy alloys journal May 2011
Microstructural development in equiatomic multicomponent alloys journal July 2004
Thermodynamic instability of a nanocrystalline, single-phase TiZrNbHfTa alloy and its impact on the mechanical properties text January 2018
Polyamorphism in a metallic glass journal February 2007
Strength coupling in mixed phases under high pressure journal October 2016
Phase-Transformation Ductilization of Brittle High-Entropy Alloys via Metastability Engineering journal June 2017
Severe local lattice distortion in Zr- and/or Hf-containing refractory multi-principal element alloys journal January 2020
Phase transformation induced by lattice distortion in multiprincipal component CoCrFeNiCuxAl1−x solid-solution alloys journal June 2008
Atomic-scale distorted lattice in chemically disordered equimolar complex alloys journal May 2018
Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes journal May 2004
Robust zero resistance in a superconducting high-entropy alloy at pressures up to 190 GPa journal November 2017
Microstructures and properties of high-entropy alloys journal April 2014
Effects of Al addition on structural evolution and tensile properties of the FeCoNiCrMn high-entropy alloy system journal January 2014
Phase transformations of Al-bearing high-entropy alloys Al x CoCrFeNi (x = 0, 0.1, 0.3, 0.75, 1.5) at high pressure journal March 2019
High-content ductile coherent nanoprecipitates achieve ultrastrong high-entropy alloys journal October 2018
High-entropy alloy: challenges and prospects journal July 2016
Phase transition induced strain in ZnO under high pressure journal May 2016
Pressure-induced fcc to hcp phase transition in Ni-based high entropy solid solution alloys journal January 2017
Metastable high-entropy dual-phase alloys overcome the strength–ductility trade-off journal May 2016
Reversible deformation-induced martensitic transformation in Al0.6CoCrFeNi high-entropy alloy investigated by in situ synchrotron-based high-energy X-ray diffraction journal April 2017
Anomalous compression behavior of germanium during phase transformation journal April 2015
A high-entropy alloy with hierarchical nanoprecipitates and ultrahigh strength journal October 2018
Structural stability of high entropy alloys under pressure and temperature journal June 2017
Anomalous decrease in X-ray diffraction intensities of Cu–Ni–Al–Co–Cr–Fe–Si alloy systems with multi-principal elements journal May 2007
A fracture-resistant high-entropy alloy for cryogenic applications journal September 2014
Local Atomic Structure of a High-Entropy Alloy: An X-Ray and Neutron Scattering Study journal November 2012
High pressure synthesis of a hexagonal close-packed phase of the high-entropy alloy CrMnFeCoNi journal May 2017
On Lattice Distortion in High Entropy Alloys journal July 2018
Local lattice distortion in high-entropy alloys journal July 2017
Strength of iron under pressure up to 55GPa from X-ray diffraction line-width analysis journal September 2006
Chemical short-range orders and the induced structural transition in high-entropy alloys journal February 2018
Discovery of a Superconducting High-Entropy Alloy journal September 2014
Relative effects of enthalpy and entropy on the phase stability of equiatomic high-entropy alloys journal April 2013
Pressure-induced phase transition in the AlCoCrFeNi high-entropy alloy journal March 2019
Structural stability of high entropy alloys under pressure and temperature text January 2017
Micro-stress dominant displacive reconstructive transition in lithium aluminate journal August 2016
An assessment of the lattice strain in the CrMnFeCoNi high-entropy alloy text January 2016
High pressure synthesis of a hexagonal close-packed phase of the high-entropy alloy CrMnFeCoNi text January 2016