The role of annealing twins during recrystallization of Cu

Field, David P.; Bradford, L.T.; Nowell, Matthew M.; Lillo, T.M.

doi:10.1016/j.actamat.2007.03.021

Cited by 389 publications

(145 citation statements)

References 22 publications

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“…Direct quantitative comparison among the sequential EBSD maps, for example to measure local boundary migration distance during annealing [17], is rather difficult because of the distortion. As a result, although many in-situ and ex-situ studies have been conducted in the last decade, in most cases only qualitative analysis has been reported [18,[21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Even more frequently, an EBSD map has to be compared with other EBSD maps of the same series collected during in-situ and ex-situ experiments [18][19][20][21][22][23]. In these cases, the coordinates in each of the EBSD map can be distorted relatively to the others because non-constant drift typically leads to different distortion among the series.…”

Section: Introductionmentioning

confidence: 99%

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A method to correct coordinate distortion in EBSD maps

Zhang

Elbrønd

Lin

2014

Materials Characterization

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Drift during electron backscatter diffraction mapping leads to coordinate distortions in resulting orientation maps, which affects, in some cases significantly, the accuracy of analysis. A method, thin plate spline, is introduced and tested to correct such coordinate distortions in the maps after the electron backscatter diffraction measurements. The accuracy of the correction as well as theoretical and practical aspects of using the thin plate spline method is discussed in detail. By comparing with other correction methods, it is shown that the thin plate spline method is most efficient to correct different local distortions in the electron backscatter diffraction maps.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A method to correct coordinate distortion in EBSD maps

Zhang

Elbrønd

Lin

2014

Materials Characterization

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“…2c and 3b). In relation to the twin-related nuclei, it was suggested that they initially nucleate with orientations close to that of the deformed matrix and then twinning proliferates in order to form HAGBs with the matrix 21 . While observing similar nucleation events during the recrystallisation of a 97% cold rolled bronze (Cu-10Sn), Peters 22 proposed that the first nuclei form by polygonisation with orientations close to the deformed matrix; subsequent to which, first and second order twinning takes place.…”

Section: Effect Of Isochronal Annealingmentioning

confidence: 99%

EBSD Observations of Recrystallisation and Tensile Deformation in Twinning Induced Plasticity Steel

Saleh

Gazder

Pereloma

2013

Trans Indian Inst Met

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The microstructure evolution of cold-rolled and isochronally annealed Fe-24Mn-3Al-2Si-1Ni-0.06C twinning induced plasticity steel was investigated by electron back-scattering diffraction (EBSD). Deformation behaviour of a fully recrystallised sample was tracked in a selected area as a function of the true strain using a combination of interrupted tensile testing and EBSD. The results show that the cold rolled microstructure contained a large fraction of primary and secondary twins as well as remnants of annealing twins carried over from the prior hot rolling stage. A novel deconstruction technique was applied to a partially recrystallised sample in order to separate the microstructure into deformed, recovered, newly nucleated and growing recrystallised grains. The interrupted tensile tests revealed the formation of fine striations in grains with "111" "111" and "110" orientations just after yielding. While the striations could be attributed to either stacking faults or the formation of fine twin packets, some of them manifested as twin boundaries as the true strain was increased up to 0.209. 2013 Indian Institute of Metals. Saleh et al., EBSD OBSERVATIONS OF RECRYSTALLISATION AND TENSILE DEFORMATION IN TWIP STEEL

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“…In addition, it is reasonable to suggest that recrystallization had occurred under the conditions of test B1, as supported in the recent EBSD characterization of copper. 19,20) On the basis of these, it is presumed that grain growth behaviors are shown in the sequential maps. During the first stage, a considerable number of 3 GBs are characteristic of the microstructure morphology, and the same is true during the following stages.…”

Section: Ofcmentioning

confidence: 99%

Explicit Distinctions between 2D MPF Grain Growth Simulations and EBSD Analyses to Determine Driving Mechanism of Grain Growth

Hirouchi

Shibutani

2013

Mater. Trans.

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Grain growth, the most fundamental mechanism forming the internal structure in metallic materials, is affected by not only grain boundary (GB) energy but also other driving forces such as internal stress fields of defects. In order to determine the explicit distinctions between the simulated evolutions and the real metallographic observations for discussing the dominant driving force, simulations of polycrystalline grain growth were performed using our proposed multi-phase-field model [T. Hirouchi, T. Tsuru and Y. Shibutani: Compt. Mater. Sci. 53 (2012) 474 482.], which was combined with pure Al and Cu h110i tilt misorientation and inclination dependences of GB energy based on the molecular dynamics results. The real microstructures in as-annealed Al specimens exhibiting various average grain diameters and in oxygen-free Cu (OFC) specimens after several annealing treatments were characterized using scanning electron microscopy/electron backscatter diffraction (SEM/ EBSD). Few low-angle GBs within misorientation angle of 2°were expected to exist in the real microstructures despite the low energies of such GBs in Al, and some 3 GBs migrated in the direction opposite to that which decreased their curvature in OFC. These behaviors cannot be explained by only a grain growth mechanism in which total GB energy in the system is reduced as the driving force in the simulations. Models incorporating contribution from the long-range internal stress field due to the defects of GBs and the piled-up dislocations is crucial.

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The role of annealing twins during recrystallization of Cu

Cited by 389 publications

References 22 publications

A method to correct coordinate distortion in EBSD maps

A method to correct coordinate distortion in EBSD maps

EBSD Observations of Recrystallisation and Tensile Deformation in Twinning Induced Plasticity Steel

Explicit Distinctions between 2D MPF Grain Growth Simulations and EBSD Analyses to Determine Driving Mechanism of Grain Growth

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