EBSD study on crystallographic texture and microstructure development of cold-rolled FePd alloy

Lin, Hsin-Chang; Ng, Tin San; Kuo, Jui Chao; Chen, Yen-Chun; Chen, Chun-Liang; Ding, S. X.

doi:10.1016/j.matchar.2014.04.006

Cited by 10 publications

(3 citation statements)

References 25 publications

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“…During recrystallization, the newly formed grains reveal a random texture. Kernel average misorientation (KAM) was used to represent local dislocation density distribution and the recrystallization fraction [ 13 , 26 ]. In principle, deformed grains have KAM > 1° because of their high dislocation density, whereas recrystallized grains have KAM < 1°.…”

Section: Resultsmentioning

confidence: 99%

“…In order to reveal the partially recrystallized grain boundaries at the early stage, the KAM maps were overlapped with LAGB, HAGB and CSL boundaries in Figure 8 and Figure 9 for 50% and 90%, respectively. The kernel average misorientation map can be assumed to be a dislocation density distribution map in different grains [ 13 , 26 ]. After 50% and 90% deformation LAGB reveals random boundaries, but after one minute of annealing, some LAGBs can be retained at the early stage of recrystallization in Figure 10 a.…”

Section: Resultsmentioning

confidence: 99%

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Grain Boundary Evolution of Cold-Rolled FePd Alloy during Recrystallization at Disordering Temperature

2015

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In this study, the grain boundary character and texture of 50% and 90% cold-rolled FePd alloy was investigated during recrystallization at 700 °C. Electron backscatter diffraction (EBSD) measurements were performed on the rolling direction to normal direction section. Kernel average misorientation (KAM) calculated from EBSD measurements was employed to determine the recrystallization fraction. The Avrami exponent n of recrystallization is 1.9 and 4.9 for 50% and 90% cold rolling, respectively. The new formation of texture reveals random texture during the recrystallization process. As annealing time increased, the number of high angle boundary (HAGB) and coincidence site lattice (CSL) increased with consumption of low angle boundary (LAGB). In addition, possible transformations between different grain boundaries are observed here.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Grain Boundary Evolution of Cold-Rolled FePd Alloy during Recrystallization at Disordering Temperature

2015

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“…An overview of the literature data indicates that texture formation during extrusion and drawing processes in metals and alloys with an FCC crystal system leads to the creation of ⟨111⟩ and ⟨100⟩ fibre texture. Their proportions in the overall texture depend on, among other factors, the type of deformation [12] and their location in the sample [1,13] (⟨111⟩ fibre is dominant in the centre and ⟨100⟩ fibre near the surface of the wire). The proportion of each fibre after extrusion or drawing is decided mainly by the initial orientation; it depends on whether the polycrystal (random) or single crystals with different initial orientations are being deformed.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Texture of Hydrostatic Extrusion Deformed Ni Single Crystals and Polycrystal

Jakubowska

Zdunek

Kulczyk

et al. 2015

Advances in Materials Science and Engineering

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The differences in the microstructure and texture of two Ni single crystals, with different initial orientations (100and110), and of polycrystalline nickel, before and after severe plastic deformation (SPD) produced by hydrostatic extrusion (HE), have been investigated. The crystals were deformed by a two-step HE process with a total deformation value ofε=1.2. The global texture, mechanical properties, and microstructure were examined after the deformation. In every investigated sample, the presence of111fibre texture was noted, while the starting orientation of a100Ni single crystal was preserved in 50% of the volume. The results obtained were compared with the relevant literature data.

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A study on annealing‐induced softening in cold drawn Cu−Cr−Sn alloy

Luo

Xie

et al. 2018

Materialwissenschaft Werkst

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The softening behavior of a 60 % cold‐drawn Cu‐0.48Cr‐0.16Sn alloy during annealing at temperatures between 450 °C and 750 °C was investigated. The mechanical properties and microstructures evolution of the alloy in both as‐drawn and annealed conditions were analyzed using hardness measurement, transmission electron microscopy (TEM) and electron back‐scatter diffraction (EBSD) technique. The results showed that the softening behavior of the alloy was strongly affected by precipitate coarsening, recovery and recrystallization, and was predominant by recrystallization when the temperature higher than 500 °C. The recrystallization kinetics was characterized by measurements of hardness. The obtained experimental data were evaluated in terms of the Johnson‐Mehl‐Avrami‐Kolmogorov model. The values of the Avrami exponent were ranged from 0.87 to 1.36, and the activation energy of recrystallization was about 117.9 kJ mol‐1 for 60 % cold‐drawn Cu−0.48Cr−0.16Sn alloy, which suggested that recrystallization process of the Cu−Cr−Sn alloy was mainly controlled by grain boundary migration. The softening resistance of the Cu−Cr−Sn alloy is stronger than that of the pure copper due to the addition of Chromium (Cr) and Tin (Sn). In addition, the reduction in strain had a positive effect on the improvement of softening resistance.

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EBSD study on crystallographic texture and microstructure development of cold-rolled FePd alloy

Cited by 10 publications

References 25 publications

Grain Boundary Evolution of Cold-Rolled FePd Alloy during Recrystallization at Disordering Temperature

Grain Boundary Evolution of Cold-Rolled FePd Alloy during Recrystallization at Disordering Temperature

Microstructure and Texture of Hydrostatic Extrusion Deformed Ni Single Crystals and Polycrystal

A study on annealing‐induced softening in cold drawn Cu−Cr−Sn alloy

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