Effects boron on microstructure and mechanical properties of Zr3Al-based alloys

Li, J.H.; Li, Q.; Zhang, F.C.; Liu, S.; Mao, Lei; Hu, Baitao; Yang, Zhinan

doi:10.1016/j.matlet.2015.04.001

Cited by 7 publications

(4 citation statements)

References 13 publications

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“…However, the ductility reached 6.07%, and at the same time, s b remained higher than 1100 MPa when 0.8 wt% Be was added. According to previous studies [28][29][30][31], the tensile strengths of some high strength ZrTiAlV alloys range from 1100 MPa to 1800 MPa, and their ductility, as shown in Fig. 5(b), are relatively low in elongation.…”

Section: Tensile Propertiesmentioning

confidence: 79%

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Microstructure and mechanical properties of hot-rolled Zr–3Al–χBe alloys

Feng

Xia

Zhou

et al. 2015

Materials Science and Engineering: A

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Section: Tensile Propertiesmentioning

confidence: 79%

“…5(b), are relatively low in elongation. At the same time, unsatisfactory tensile strength can be observed in the high ductility ZrAl alloys [31]. Widmanstatten structure in ZrTiAlV alloys and coarse grains in ZrAlB alloys are attribution to the poor combination of tensile strength and ductility.…”

Section: Tensile Propertiesmentioning

confidence: 99%

Microstructure and mechanical properties of hot-rolled Zr–3Al–χBe alloys

Feng

Xia

Zhou

et al. 2015

Materials Science and Engineering: A

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“…It can be seen from Figure 6 a that the composed of microstructures are the light-colored Zr-Al phase and dark-colored Zr phase, and the distribution is relatively uniform. The morphology of sintered Zr-Al alloy is obviously different from that of melted Zr-Al alloy [ 9 , 21 ]. The XRD result of the workpieces is shown in Figure 7 .…”

Section: Resultsmentioning

confidence: 99%

“…In the studies of the effect of adding elements, what appeals to us is the research by Li et al [ 21 ]. They analyzed the effect of B element on the microstructure and mechanical properties of Zr 3 Al-based alloy.…”

Section: Introductionmentioning

confidence: 99%

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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