entropy free full text microstructure and mechanical
Microstructure Crystallographic Orientation and
Jun 01 2020 · Microstructure Crystallographic Orientation and Mechanical Property in AlCoCrFeNi 2.1 Eutectic High-Entropy Alloy Under Magnetic Field-Assisted Directional Solidification JIANTAO WANG ZHIPENG LONG PINFANG JIANG YVES FAUTRELLE and XI LI Microstructure crystallographic orientation and mechanical properties in the AlCoCrFeNi 2.1
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NiAl-based composites reinforced by CrMnFeCoNi high-entropy alloy (HEA) particles were fabricated by mechanical alloying (MA) and spark plasma sintering (SPS). The microstructure mechanical and tribological properties of the NiAl-HEA composites were investigated.
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May 05 2016 · In high-entropy alloy the high entropy makes the Gibbs free energy of mixing more negative. Thus Download full-size image Fig. 2. Microstructure of the FeCoNiCrCu alloy. 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.
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Jan 30 2019 · Schuh B. et al. Mechanical properties microstructure and thermal stability of a nanocrystalline CoCrFeMnNi high-entropy alloy after severe plastic deformation. Acta Mater. 96
Get PriceMicrostructure and Mechanical Behavior of CrFeNi 2 V 0.5 W
The microstructure and room-temperature mechanical behavior of both alloys were investigated. Compressive test results showed that the CrFeNi 2 V 0.5 W 0.25 alloy had higher yield strength than that of the W-free CrFeNi 2 V 0.5 alloy although they all exhibited quite larger compressive plasticity (ε
Get PriceMicrostructure and mechanical properties of (TiZrNbTaMo)C
A high-entropy (TiZrNbTaMo)C ceramic has been successfully fabricated by hot pressing the newly-synthesized quinary carbide powder to investigate its microstructure and mechanical properties. The carbothermal reduction process of equimolar quinary metallic oxides at 1500 ℃ for 1 h generates a carbide powder mixture which consists mainly of
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Nov 26 2019 · The dynamic mechanical properties and microstructure of the (Al 0.5 CoCrFeNi) 0.95 Mo 0.025 C 0.025 high entropy alloy (HEA) prepared by powder extrusion were investigated by a split Hopkinson pressure bar and electron probe microanalyzer and scanning electron microscope. The (Al 0.5 CoCrFeNi) 0.95 Mo 0.025 C 0.025 HEA has a uniform face-centered cubic plus body-centered cubic
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Jul 18 2020 · The CoCrCuFeNi high-entropy alloy has a single-phase face-centered cubic (FCC) structure with high toughness . Forming the second phase by adding Ti or Al can improve the mechanical properties of CoCrCuFeNi. AlxCoCrCuFeNi (x = 0.5 1.5 2.5 and 4) high entropy alloys were synthesized by mechanical alloying and spark plasma sintering.
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A series of refractory high-entropy alloys VTaTiMoAlx with x=0 0.2 0.6 1.0 were designed and produced by vacuum arc melting. The effect of added Al elements on the microstructure and mechanical
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A CoCrCuFeNiTi0.8 high-entropy alloy was prepared using directional solidification techniques at different withdrawal rates (50 μm/s 100 μm/s 500 μm/s). The results showed that the microstructure was dendritic at all withdrawal rates. As the withdrawal rate increased the dendrite orientation become uniform. Additionally the accumulation of Cr and Ti elements at the solid/liquid
Get PriceMechanical Properties and Microstructure of a NiCrFeCoMn
Nov 21 2018 · The equiatomic NiCrFeCoMn high-entropy alloy prepared by arc melting has a single crystallographic structure. Mechanical properties and microstructure of the NiCrFeCoMn high-entropy alloy deformed at high strain rates (900 s-1 to 4600 s-1) were investigated.The yield strength of the NiCrFeCoMn high-entropy alloy is sensitive to the change of high strain rates.
Get PriceMicrostructure and Mechanical Behavior of CrFeNi 2 V 0.5 W
The microstructure and room-temperature mechanical behavior of both alloys were investigated. Compressive test results showed that the CrFeNi 2 V 0.5 W 0.25 alloy had higher yield strength than that of the W-free CrFeNi 2 V 0.5 alloy although they all exhibited quite larger compressive plasticity (ε
Get PriceMicrostructure and mechanical properties of (CrCoNi)97Al1
In this study the swaged (CrCoNi) 97 Al 1.5 Ti 1.5 medium entropy alloys (MEAs) were twisted by free-end-torsion at room and liquid nitrogen temperatures. Microstructure in different strained layers of the twisted sample was characterized by combined use of energy dispersive spectroscopy electron channeling contrast imaging and electron backscatter diffraction techniques.
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Microstructure and Mechanical Properties of FCC‐Based Cr‐Free Equiatomic High‐Entropy Alloys Dr. Xinwang Liu National Key Laboratory for Precision Hot Processing of Metals Harbin Institute of Technology Harbin 150001 China
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Secondary phases either introduced by alloying or heat treatment are commonly present in most high-entropy alloys (HEAs). Understanding the formation of secondary phases at high temperatures and their effect on mechanical properties is a critical issue that is undertaken in the present paper using the Al x CoCrFeNi (x = 0.3 0.5 and 0.7) as a model alloy.
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Homogenized microstructures of CoCrFeNiMnTix (x = 0.1 and 0.3) high‐entropy alloys consist of single face‐centered cubic phase. Adding titanium up to 5.5 at. (x = 0.3) led to an improvement in stren
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Microstructure and Mechanical Properties of FCC‐Based Cr‐Free Equiatomic High‐Entropy Alloys Dr. Xinwang Liu National Key Laboratory for Precision Hot Processing of Metals Harbin Institute of Technology Harbin 150001 China
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May 13 2020 · Laplanche G. et al. Reasons for the superior mechanical properties of medium-entropy CrCoNi compared to high-entropy CrMnFeCoNi. Acta Mater. 128
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Therefore CoCrNi MEA was produced by combination of gas atomization and SPS in this study. The microstructure and composition of the as-atomized powder and sintered alloy were carefully characterized. Meanwhile the mechanical properties corrosion resistance and magnetic properties of the MEA were systematically investigated and discussed.
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Microstructure and Mechanical Properties of FCC‐Based Cr‐Free Equiatomic High‐Entropy Alloys Dr. Xinwang Liu National Key Laboratory for Precision Hot Processing of Metals Harbin Institute of Technology Harbin 150001 China
Get PriceMicrostructure and Mechanical Properties of Face‐Centered
Oct 28 2020 · Microstructure evolution phase constituent and tensile properties at room temperature are studied. The HEAs have multi‐phase FCC structures with slightly different lattice constants and spherical Cu‐rich particles are observed in most systems.
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May 05 2016 · In high-entropy alloy the high entropy makes the Gibbs free energy of mixing more negative. Thus Download full-size image Fig. 2. Microstructure of the FeCoNiCrCu alloy. 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.
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Apr 15 2020 · Microstructure and properties of in‐situ high entropy alloy/tungsten carbide composites by mechanical alloying. Rathinavelu Sokkalingam Advanced Materials Processing Laboratory Department of Metallurgical and Materials Engineering National Institute of Technology Tiruchirappalli Tamil Nadu India
Get PriceMicrostructure of Al1.3CrFeNi eutectic high entropy alloy
Al 1.3 CrFeNi eutectic high entropy alloy was designed and prepared by arc-melting to investigate the microstructure and oxidation behaviors at 1000 °C. The XRD pattern shows that this alloy had a double bcc/B2 structure. SEM images indicates that the microstructure of the alloy is composed of two precipitates of Cr Fe solid solution and NiAl intermetallic which form the typical eutectic
Get PriceMicrostructure and mechanical properties of (CrCoNi)97Al1
In this study the swaged (CrCoNi) 97 Al 1.5 Ti 1.5 medium entropy alloys (MEAs) were twisted by free-end-torsion at room and liquid nitrogen temperatures. Microstructure in different strained layers of the twisted sample was characterized by combined use of energy dispersive spectroscopy electron channeling contrast imaging and electron backscatter diffraction techniques.
Get PriceInterfacial microstructure and mechanical properties of
May 05 2016 · In high-entropy alloy the high entropy makes the Gibbs free energy of mixing more negative. Thus Download full-size image Fig. 2. Microstructure of the FeCoNiCrCu alloy. 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.
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Jun 21 2017 · In this work a new refractory high-entropy alloy the Co-Cr-Mo-Nb-Ti system was proposed as a family of candidate materials for high-temperature structural applications. CoCrMoNbTi x (x values in terms of molar ratios x = 0 0.2 0.4 0.5 and 1.0) alloys were prepared by vacuum arc melting. The effects of variations in the Ti content on the phase constituents microstructure and mechanical
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A series of TaNbVTiAlx (x = 0 0.2 0.4 0.6 0.8 and 1.0) refractory high-entropy alloys (RHEAs) with high specific strength and reasonable plasticity were prepared using powder metallurgy (P/M) technology. This paper studied their microstructure and compression properties. The results show that all the TaNbVTiAlx RHEAs exhibited a single BCC solid solution microstructure
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Homogenized microstructures of CoCrFeNiMnTix (x = 0.1 and 0.3) high‐entropy alloys consist of single face‐centered cubic phase. Adding titanium up to 5.5 at. (x = 0.3) led to an improvement in stren
Get PriceDynamic Mechanical Properties and Microstructure of an
Nov 26 2019 · The dynamic mechanical properties and microstructure of the (Al 0.5 CoCrFeNi) 0.95 Mo 0.025 C 0.025 high entropy alloy (HEA) prepared by powder extrusion were investigated by a split Hopkinson pressure bar and electron probe microanalyzer and scanning electron microscope. The (Al 0.5 CoCrFeNi) 0.95 Mo 0.025 C 0.025 HEA has a uniform face-centered cubic plus body-centered cubic
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Feb 06 2019 · A comparative study on the evolution of microstructure and hardness during monotonic and cyclic high pressure torsion of CoCuFeMnNi high entropy alloyVolume 34 Issue 5Reshma Sonkusare Nimish Khandelwal Pradipta Ghosh Krishanu Biswas Nilesh Prakash Gurao
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