Design of oxygen-doped TiZrHfNbTa refractory high entropy alloys with enhanced strength and ductility

Iroc, L.K.; Tukac, O. U.; Tanrisevdi, B.B.; El-Atwani, Osman; Tunes, Matheus A.; Kalay, Yunus Eren; Aydoğan, Eda

doi:10.1016/j.matdes.2022.111239

Cited by 19 publications

(1 citation statement)

References 64 publications

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“…In the process of pursuing high-performance materials, the high-entropy alloys (HEAs) [ 21 ] were introduced. The preeminent properties (such as high strength [ 22 , 23 ], good corrosion resistance [ 24 , 25 , 26 ], fine tribological properties [ 27 , 28 ], remarkable softening resistance [ 29 , 30 ], and outstanding irradiation tolerance [ 1 , 2 , 5 , 31 ], etc.) enhance the application competitiveness of HEAs under extreme environments.…”

Section: Introductionmentioning

confidence: 99%

He-ion Irradiation Effects on the Microstructures and Mechanical Properties of the Ti-Zr-Hf-V-Ta Low-Activation High-Entropy Alloys

Zhang

Wang

et al. 2023

Materials

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High-entropy alloys (HEAs) have shown promising potential applications in advanced reactors due to the outstanding mechanical properties and irradiation tolerance at elevated temperatures. In this work, the novel low-activation Ti2ZrHfxV0.5Ta0.2 HEAs were designed and prepared to explore high-performance HEAs under irradiation. The microstructures and mechanical properties of the Ti2ZrHfxV0.5Ta0.2 HEAs before and after irradiation were investigated. The results showed that the unirradiated Ti2ZrHfxV0.5Ta0.2 HEAs displayed a single-phase BCC structure. The yield strength of the Ti2ZrHfxV0.5Ta0.2 HEAs increased gradually with the increase of Hf content without decreasing the plasticity at room and elevated temperatures. After irradiation, no obvious radiation-induced segregations or precipitations were found in the transmission electron microscope results of the representative Ti2ZrHfV0.5Ta0.2 HEA. The size and number density of the He bubbles in the Ti2ZrHfV0.5Ta0.2 HEA increased with the improvement of fluence at 1023 K. At the fluences of 1 × 1016 and 3 × 1016 ions/cm2, the irradiation hardening fractions of the Ti2ZrHfV0.5Ta0.2 HEA were 17.7% and 34.1%, respectively, which were lower than those of most reported conventional low-activation materials at similar He ion irradiation fluences. The Ti2ZrHfV0.5Ta0.2 HEA showed good comprehensive mechanical properties, structural stability, and irradiation hardening resistance at elevated temperatures, making it a promising structural material candidate for advanced nuclear energy systems.

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Section: Introductionmentioning

confidence: 99%

He-ion Irradiation Effects on the Microstructures and Mechanical Properties of the Ti-Zr-Hf-V-Ta Low-Activation High-Entropy Alloys

Zhang

Wang

et al. 2023

Materials

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Design of VNbTaMo_x Body‐Centered‐Cubic Refractory High‐Entropy Alloys with Excellent Ultrahigh‐Temperature Mechanical Properties and Ductility

Wang,

Song,

Tian

et al. 2024

Adv Eng Mater

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To design metal materials that combine high‐temperature strength with room‐temperature ductility, three kinds of body‐centered‐cubic (BCC) refractory high‐entropy alloys (RHEAs) with different Mo element contents are screened and prepared by combining several parameters. The room‐temperature ductility and excellent high‐temperature (1500 °C) mechanical properties are investigated. Combined with the microstructure test, the characteristic of fracture and deformation is also discussed. RHEAs studied herein have great compressive yield strength approximately ranging from 1324.5 to 1424.4 MPa with excellent compressive ductility ranging from 20.7% to 44.2% at room temperature. At 1500 °C, the yield strengths of three RHEAs are over 335.47 MPa at 10−3 s−1 strain rate, which is rarely found in traditional metals materials. The excellent mechanical properties of these three RHEAs at both room and high temperature as a promising material are beneficial to future high‐temperature application.

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Effect of constituent phase and processing parameter on the WEDM performance of refractory high entropy alloys

Zhang,

Yue,

Zhang

et al. 2023

Int J Adv Manuf Technol

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Design of oxygen-doped TiZrHfNbTa refractory high entropy alloys with enhanced strength and ductility

Cited by 19 publications

References 64 publications

He-ion Irradiation Effects on the Microstructures and Mechanical Properties of the Ti-Zr-Hf-V-Ta Low-Activation High-Entropy Alloys

He-ion Irradiation Effects on the Microstructures and Mechanical Properties of the Ti-Zr-Hf-V-Ta Low-Activation High-Entropy Alloys

Design of VNbTaMo_x Body‐Centered‐Cubic Refractory High‐Entropy Alloys with Excellent Ultrahigh‐Temperature Mechanical Properties and Ductility

Effect of constituent phase and processing parameter on the WEDM performance of refractory high entropy alloys

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Design of oxygen-doped TiZrHfNbTa refractory high entropy alloys with enhanced strength and ductility

Cited by 19 publications

References 64 publications

He-ion Irradiation Effects on the Microstructures and Mechanical Properties of the Ti-Zr-Hf-V-Ta Low-Activation High-Entropy Alloys

He-ion Irradiation Effects on the Microstructures and Mechanical Properties of the Ti-Zr-Hf-V-Ta Low-Activation High-Entropy Alloys

Design of VNbTaMox Body‐Centered‐Cubic Refractory High‐Entropy Alloys with Excellent Ultrahigh‐Temperature Mechanical Properties and Ductility

Effect of constituent phase and processing parameter on the WEDM performance of refractory high entropy alloys

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Design of VNbTaMo_x Body‐Centered‐Cubic Refractory High‐Entropy Alloys with Excellent Ultrahigh‐Temperature Mechanical Properties and Ductility