The effects of alloy composition and annealing time on microstructure and mechanical properties of Zr<sub>3</sub>Al-based alloys

Li, J. H.; Liu, S.; Mao, Lei; Zhang, F. C.; Li, Q.

doi:10.1179/1432891715z.0000000001918

Cited by 2 publications

(3 citation statements)

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“…Through an overall consideration, it is suggested that the deformation temperature should be higher than the phase transition temperature of α -Zr to β -Zr (863 °C), but lower than the decomposition temperature of Zr 3 Al (1019 °C). β -Zr and Zr 3 Al both have relatively good plasticity, which is beneficial to improve the uniformity of microstructure and reduce the possibility of defects [ 9 , 10 , 11 ].…”

Section: Resultsmentioning

confidence: 99%

“…Through an overall consideration, it is suggested that the deformation temperature should be higher than the phase transition temperature of α-Zr to β-Zr (863 °C), but lower than the decomposition temperature of Zr3Al (1019 °C). β-Zr and Zr3Al both have relatively good plasticity, which is beneficial to improve the uniformity of microstructure and reduce the possibility of defects [9][10][11]. On the whole, for sintered Zr-6Al-0.1B alloy, the high deformation rate can provide a large recrystallization nuclear force, which is conducive to improving the grain refinement.…”

Section: Microstructure Evolution Of Sintered Zr-6al-01b Alloymentioning

confidence: 99%

“…Li et al [ 10 , 11 ] prepared Zr-Al alloy by smelting method, the effects of aluminum content (6.0, 7.0, 8.0 at.%), annealing temperature, and annealing time on the phase composition and mechanical properties of Zr-Al alloy were analyzed. They found that there is no Zr 3 Al phase in the as-casting Zr-Al alloy and almost no plasticity when the phase composition is Zr 2 Al + α -Zr.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Thermal Deformation Behavior of Hot-Pressing Sintered Zr-6Al-0.1B Alloy

et al. 2022

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Zr-6Al-0.1B alloy rich in Zr3Al phase is prepared by hot-pressing sintering. The thermal deformation behavior of sintered Zr-6Al-0.1B is analyzed by isothermal compression tests at deformation temperatures of 950, 1050, and 1150 °C with strain rates of 0.01, 0.1, and 1 s−1. The results indicate that at the early stage of thermal deformation, the stress increases rapidly with the increase of strain and then reaches the peak value. Subsequently, the stress decreases with the increase of strain under the softening effect. On the whole, the true stress-strain curve shifts to the high stress area with the increase of strain rate or the decrease of deformation temperature, so the sintered Zr-6Al-0.1B alloy belongs to the temperature and strain rate sensitive material. For the microstructure evolution of sintered Zr-6Al-0.1B during the isothermal compression, the high strain rate can improve the grain refinement. However, because sintered Zr-6Al-0.1B is a low plastic material, too high strain rate will exceed the deformation capacity of the material, resulting in an increase in defects. The increase of deformation temperature also contributes to grain refinement, but when the temperature is too high, due to the decomposition of Zr3Al phase, the deformation coordination of the material decreases, leading to the increase of the probability of the occurrence of defects. This study verified the feasibility of hot-pressing sintering to prepare Zr-6Al-0.1B alloy rich in Zr3Al phase and laid the foundation of “hot-pressing sintering + canning hot-extrusion” process of Zr-6Al-0.1B alloy components.

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Section: Resultsmentioning

confidence: 99%

“…Through an overall consideration, it is suggested that the deformation temperature should be higher than the phase transition temperature of α-Zr to β-Zr (863 °C), but lower than the decomposition temperature of Zr3Al (1019 °C). β-Zr and Zr3Al both have relatively good plasticity, which is beneficial to improve the uniformity of microstructure and reduce the possibility of defects [9][10][11]. On the whole, for sintered Zr-6Al-0.1B alloy, the high deformation rate can provide a large recrystallization nuclear force, which is conducive to improving the grain refinement.…”

Section: Microstructure Evolution Of Sintered Zr-6al-01b Alloymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microstructure and Thermal Deformation Behavior of Hot-Pressing Sintered Zr-6Al-0.1B Alloy

et al. 2022

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In-situ electrochemical study of plasma electrolytic oxidation treated Zr3Al based alloy in 300°C/14 MPa lithium borate buffer solution

Wei

Wang

et al. 2020

Thin Solid Films

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The effects of alloy composition and annealing time on microstructure and mechanical properties of Zr₃Al-based alloys

Cited by 2 publications

References 8 publications

Microstructure and Thermal Deformation Behavior of Hot-Pressing Sintered Zr-6Al-0.1B Alloy

Microstructure and Thermal Deformation Behavior of Hot-Pressing Sintered Zr-6Al-0.1B Alloy

In-situ electrochemical study of plasma electrolytic oxidation treated Zr3Al based alloy in 300°C/14 MPa lithium borate buffer solution

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The effects of alloy composition and annealing time on microstructure and mechanical properties of Zr3Al-based alloys

Cited by 2 publications

References 8 publications

Microstructure and Thermal Deformation Behavior of Hot-Pressing Sintered Zr-6Al-0.1B Alloy

Microstructure and Thermal Deformation Behavior of Hot-Pressing Sintered Zr-6Al-0.1B Alloy

In-situ electrochemical study of plasma electrolytic oxidation treated Zr3Al based alloy in 300°C/14 MPa lithium borate buffer solution

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The effects of alloy composition and annealing time on microstructure and mechanical properties of Zr₃Al-based alloys