Investigation of hot deformation behavior and three-roll skew rolling process for hollow stepped shaft of Al–Zn–Mg–Cu alloy

Zhang, Qingdong; Zuo, Jinrong; Xia, Yingxiang; Tomczak, Janusz; Pater, Zbigniew; Ma, Zheng; Yang, Chen; Shu, Xuedao; Mei, Bizhou; Wang, Guobiao

doi:10.1016/j.jmrt.2024.08.183

Journal of Materials Research and Technology

2024

DOI: 10.1016/j.jmrt.2024.08.183

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Investigation of hot deformation behavior and three-roll skew rolling process for hollow stepped shaft of Al–Zn–Mg–Cu alloy

Qingdong Zhang,

Jinrong Zuo,

Yingxiang Xia

et al.

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High‐Temperature Deformation Behavior and Microstructural Evolution of N06625 Nickel‐Based Alloy

Huang,

Song,

et al. 2024

steel research int.

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Herein, the hot deformation behavior and microstructure evolution of N06625 superalloy are studied. Hot deformation behavior at 950–1200 °C and strain rate 0.1–10 s−1 are carried out by Gleeble‐3800 thermal simulator machine. The activation energy (Q) of the alloy is calculated by the change of stress–strain curve. The microstructure of the experimental material is characterized by electron backscatter diffraction, and it is found that the recrystallization fraction rate increases with the increase of temperature, but decreases first and then increases with the increase of strain rate. Discontinuous dynamic recrystallization is the main nucleation mechanism of N06625 superalloy. Continuous dynamic recrystallization (CDRX) is the auxiliary nucleation mechanism; CDRX gradually decreases with the increase of temperature. In addition, it is found that the evolution of special boundaries is closely related to the strain rate. The longer deformation time is beneficial to the interaction of grain boundaries, which leads to the special boundary fraction, and the increase of special boundary fraction can effectively weaken the preferred orientation caused by recrystallization growth.

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High‐Temperature Deformation Behavior and Microstructural Evolution of N06625 Nickel‐Based Alloy

Huang,

Song,

et al. 2024

steel research int.

View full text Add to dashboard Cite

show abstract

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Investigation of hot deformation behavior and three-roll skew rolling process for hollow stepped shaft of Al–Zn–Mg–Cu alloy

Cited by 1 publication

References 41 publications

High‐Temperature Deformation Behavior and Microstructural Evolution of N06625 Nickel‐Based Alloy

High‐Temperature Deformation Behavior and Microstructural Evolution of N06625 Nickel‐Based Alloy

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