On the Possibility of Superplastictiy Enhanced by Dynamic Recrystallization

Kaibyshev, Rustam; Galiyev, Arthur

doi:10.4028/www.scientific.net/msf.243-245.131

Cited by 6 publications

(3 citation statements)

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“…In the area of dynamic recrystallization by quantitative metallography measuring an average grain size of the size of each process, and can be seen in Figure 4 corresponds to the peak stress, the smaller the grain size of dynamic recrystallization region. This is due to peak stress and Zener-Hollomon (Z) parameter corresponds to [4][5][6][7] .…”

Section: Analysis and Discussionmentioning

confidence: 99%

Compressing Deformation and Microstructure of AZ61 Magnesium Alloy

Yang

Liu

et al. 2014

AMR

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Hot compression tests of AZ61 magnesium alloy were performed on gleeble1500D at strain rate ranged in 0.01~1s-1 and deformation temperature 350~400°C.The results show that the flow stress and microstructures strongly depend on the deformation temperature and the strain rate. When the temperature was reduced and the strain rate was enhanced, the area after dynamic recrystallization was enhanced, and the average dynamically recrystallied grain size reduce. But the dynamically recrystallied grain size was not well-proportioned. In this paper the 350°C×1s-1 was suggested.

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Section: Analysis and Discussionmentioning

confidence: 99%

Compressing Deformation and Microstructure of AZ61 Magnesium Alloy

Yang

Liu

et al. 2014

AMR

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“…Some researchers discovered that the dynamic recrystallization (DRX) occurs readily in magnesium and its alloys. 17,19,20) Mwembela et al 21) showed that dynamic recrystallization occurred at 573 K in AZ31 ingot alloys during hot torsion testing. Watanabe et al 22) also revealed the dynamic recrystallization behavior in a commercial AZ31 alloy during upset forging.…”

Section: Discussionmentioning

confidence: 99%

Superplastic Behavior and Microstructural Evolution in a Commercial Mg-3Al-1Zn Magnesium Alloy

et al. 2002

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Superplastic behavior and microstructural evolution in a commercial Mg-3Al-1Zn magnesium alloy were investigated at temperatures between 623 K and 723 K and strain rates between 10 −5 and 10 −3 s −1 . Grain refinement was obtained in the test alloy due to the dynamic recrystallization during an initial stage of tensile test. As a result, the alloy exhibited good superplasticity at all strain rates and temperatures, and a maximum elongation of 314% was obtained. The results of optical microscopy and SEM revealed that the dominant deformation mechanism was grain boundary sliding, and the dynamic recrystallization was the accommodated mechanism for the deformation.

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“…Research and development of new magnesium alloys in recent years, have begun to attach importance to ensuring the strength while improving thermal processing of plastic and plastic deformation of magnesium alloys at room temperature, way to solve is through wrought magnesium alloys alloy phase distortion design and use of new technology and other methods [1][2][3]. Adding rare earth elements in magnesium alloys, in addition to refinement and strengthening the role of the alloy phase, it can also improve the thermal processing of plastic magnesium alloy to improve the thermal deformation rates, thus reducing the magnesium alloy hot deformation products processing costs [4][5][6]. Of Ce atomic diffusion ability, is one of the most effective alloying elements can enhance the recrystallization temperature of magnesium alloy and slow recrystallization process, they can precipitate a very stable dispersion of particles, a substantial increase of magnesium alloy and high-temperature creep strength variable resistance.…”

Section: Introductionmentioning

confidence: 99%