Static globularization mechanism of Ti-17 alloy during heat treatment

Xu, Jianwei; Zeng, Weidong; Ma, Haoyuan; Zhou, Dadi

doi:10.1016/j.jallcom.2017.11.117

Cited by 72 publications

(9 citation statements)

References 38 publications

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“…3c. Meanwhile, owing to the higher Mo equivalent of the alloy (11.1) and the limiting effect of the β-stable element on the α phase, there is no coarsening of the primary α phase [23,26,27]. It can be seen from Figs.…”

Section: Primary α Phase and β Grainmentioning

confidence: 92%

Thermomechanical processing of a near-β titanium alloy and effects on microstructure and tensile properties

Jiang¹,

Zhang²,

Lv³

et al. 2021

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Section: Primary α Phase and β Grainmentioning

confidence: 92%

Thermomechanical processing of a near-β titanium alloy and effects on microstructure and tensile properties

Jiang¹,

Zhang²,

Lv³

et al. 2021

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“…This is why so many a lamellae break up after solution and aging treatment. As the heat treatment exceeds a certain duration, the dominant mechanism of break-up changes from boundary splitting to termination migration, and the demarcation point of these two processes is reported to be approximately 0.5 h to 1 h. 41 Similar to boundary splitting, termination migration is a process of atomic diffusion, as well. The difference is that the driving force for termination migration is provided by the curvature difference at different sites of a plates.…”

Section: Microstructure Of Heat-treated Alloymentioning

confidence: 99%

“…A tremendous amount of work [37][38][39][40][41] has been done on the globularization of a phase in titanium alloys, and the two most significant factors in the globularization process have been proposed to be deformation and heat treatment. The globularization process mentioned above can be divided into two stages: boundary splitting at the initial stage of heat treatment, and termination migration during the heat treatment.…”

Section: Microstructure Of Heat-treated Alloymentioning

confidence: 99%

Effect of Heat Treatment on Microstructure and Tensile Properties of Ti-6Al-4V Alloy Produced by Coaxial Electron Beam Wire Feeding Additive Manufacturing

Zhang

Ya³

et al. 2021

JOM

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A novel coaxial electron beam wire feeding additive manufacturing technology (CAEBWAM) was proposed in our previous work to refine the microstructure and improve the mechanical properties of titanium alloys. In the present work, different post-heat treatments were performed to understand the microstructure evolution and the resultant mechanical properties of CAEB-WAMed Ti-6Al-4V alloy. The as-built sample was dominated by equiaxed prior b microstructure, with the first several deposited layers containing columnar prior b grain morphology. The as-built alloy showed a mixed microstructure composed of large a¢ martensite and fine a + b lamella. As the annealing temperature was increased, a¢ martensite decomposed into a + b phase, while the width of the a lamellae increased, causeing an increase in the ductility and a decrease in the strength.

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“…Boundary splitting is the main globularization mechanism during annealing [15,16]. The globularization fraction continuously increased with increasing annealing time and temperature [13,17]. Moreover, static recrystallization during annealing was found to influence the texture evolution significantly.…”

Section: Introductionmentioning

confidence: 98%

“…Thus, static recrystallization (SRX) in subsequent annealing is often exploited to get a more finegrained and homogeneous microstructure [11,12]. Generally, recrystallization annealing comprises two processes, i. e. (i) the globularization of lamellar α phase and (ii) the growth of equiaxed α grain [13,14]. Boundary splitting is the main globularization mechanism during annealing [15,16].…”

Section: Introductionmentioning

confidence: 99%

Grain morphology and texture evolution of TC21 titanium alloy during annealing with different time

Xin

Wang

Yan

et al. 2019

Materialwissenschaft Werkst

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A homogeneous equiaxed‐structure TC21 titanium alloy is hot rolled and annealed for different time ranging from 1 h to 6 h. The grain morphology and texture evolution of α and β phases during annealing are mainly investigated using the electron back‐scattered diffraction characterization. In the early annealing stage, the α grain mainly maintains the elongated morphology generated in the rolling. With increasing annealing time, more and more elongated α grains become equiaxed due to enhanced static recrystallization and boundary splitting. Differently, the β grain exhibits a fully equiaxed morphology all the time due to the sufficient static recrystallization, and get a coarsening with increasing annealing time. The α phase exhibits a (0001) basal texture in the early annealing stage, and then forms a TD‐split texture with increasing annealing time. The β phase exhibits the {001}<110> texture at every annealing time. Based on the analysis about the texture of different grain sizes, the effects of recrystallization nucleation and oriented growth on texture evolution are discussed. It suggests that TD‐split texture in α phase is originated from both the recrystallization nucleation and oriented growth. The formation of {001}<110> texture in β phase is mainly originated from the oriented growth.

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Static globularization mechanism of Ti-17 alloy during heat treatment

Cited by 72 publications

References 38 publications

Thermomechanical processing of a near-β titanium alloy and effects on microstructure and tensile properties

Thermomechanical processing of a near-β titanium alloy and effects on microstructure and tensile properties

Effect of Heat Treatment on Microstructure and Tensile Properties of Ti-6Al-4V Alloy Produced by Coaxial Electron Beam Wire Feeding Additive Manufacturing

Grain morphology and texture evolution of TC21 titanium alloy during annealing with different time

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