Some Applications of Electron Back Scattering Diffraction (EBSD) in Materials Research

Chen, Zhongwei; Yang, Yanqing; Jiao, Huisheng

doi:10.5772/35267

Cited by 11 publications

(6 citation statements)

References 22 publications

(21 reference statements)

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“…It is used to study the grain boundary, its types, misorientation and its distribution statically as well quantitively. EBSD has emerged as a one of the strongest characterization tools that provides valuable information about the mechanisms of nucleation and growth during modification, and agglomeration of equiaxed crystals in secondary solidification [32][33][34] .…”

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confidence: 99%

Grain refinement of commercially pure aluminum with addition of Ti and Zr elements based on crystallography orientation

Chen

Yan

2020

Sci Rep

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The edge-to-edge matching (E2EM) model and electron back-scatter diffraction (EBSD) technique are used to explore the grain refinement mechanism of commercially pure Al through the addition of Ti and Zr elements. EBSD results show that there are favorable crystallography orientation relationships (ORs) between both Al3Ti and Al3Zr particles with α-Al matrix. Due to these ORs Al3Ti and Al3Zr particles act as the heterogeneous nucleation site during solidification nucleation of Al–Ti and Al–Zr alloys, respectively. Furthermore, both Al3Ti and Al3Zr particles have small values of interplanar spacing mismatch and interatomic spacing misfit with respect to α-Al matrix by using E2EM. It shows that micro-addition of Ti and Zr element is efficient heterogeneous nucleation refiner in commercial purity Al or Al alloys. Besides, there may be some other mechanisms in grain refinement of Al alloys with addition of Ti grain refiner.

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confidence: 99%

Grain refinement of commercially pure aluminum with addition of Ti and Zr elements based on crystallography orientation

Chen

Yan

2020

Sci Rep

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“…In the following, EBSD (Electron Back Scattering Diffraction) is employed to make crystallographic analyses. This technique is based on the automatic analysis of the Kikuchi pattern by the excitation of the electron beam on the surface of the sample in SEM (Scanning Electron Microscope) [16]. Among several analytical tools in EBSD, the crystallographic orientation for each grain is described by IPF (Inverse Pole Figure) and the strain induced phase transformation is also analyzed by phase mapping.…”

Section: Introductionmentioning

confidence: 99%

Micro-/Nano-Structuring in Stainless Steels by Metal Forming and Materials Processing

Aizawa¹,

Shiratori²,

Komatsu³

2020

Electron Crystallography

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Austenitic stainless steel type AISI304 sheets and plates as well as finegrained type AISI316 (FGSS316) substrates and wires were employed as a work material in the intense rolling, the piercing and the plasma nitriding. AISI304 sheet after intense rolling had textured microstructure in the rolling direction. Crystallographic state changed itself to have distorted polycrystalline state along the shearing plane by piercing, with the strain induced phase transformation. FGSS316 substrates were plasma nitrided at 623 K for 14.4 ks to have two-phase fine nanostructure with the average grain size of 100 nm as a surface layer with the thickness of 30 μm. FGSS316 wires were also plasma nitrided at the same conditions to form the nitrided surface down to the depth of 30 μm. This nitrided wire was further uniaxially loaded in tensile to attain more homogeneously nitrided surface nano-structure and to form the austenitic and martensitic fiber structure aligned in the tensile direction. Each crystallographic structure intrinsic to metals and metallic alloys was tailored to have preferable micro−/nano-structured cells by metal forming and nitrogen supersaturation. The crystallographic change by metal forming in a priori and posterior to nitriding was discussed to find out a new way for materials design.

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“…The evolution of the microstructure and texture in low carbon steels processed by plastic deformation are produced by a variation in its energy stored during the deformation. In the case of highly deformed steels, stored energy is mainly concentrated as generation and interaction between dislocations [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Abovementioned applies too for continuous annealing process where both mechanical properties and microstructure are altered [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…Texture measurements using EBSD techniques provides results by means of Orientation Distribution Functions (ODFs), usually representing the frequency distribution of the continuum of orientations in Euler Space. [5][6]15,18]. ODFs are used to determine the texture in main components of the angles, , 1, 2 represented by a tridimensional view of the Euler space within the Bunge context [8][9].…”

Section: Introductionmentioning

confidence: 99%

Effects of Double Reduction and Annealing on the Texture during Continuous Rolling of Ultrathin Sheets of Low Carbon Steels

Lg¹,

Fa²,

MdJ³

et al. 2019

Preprint

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In this paper were analyzed the effects of double reduction and annealing during rolling process on texture evolution in an ultrathin sheet of low carbon steel. Experimental samples were obtained from each process stage. EBSD technique and correlated tools as orientation density functions and pole figures were used to analyze the microstructural changes and the texture. Results show that {111} recrystallized grains were formed during process, reducing dramatically gamma-fibre texture intensity and generating an adequate finished product for deep die stamping.

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Some Applications of Electron Back Scattering Diffraction (EBSD) in Materials Research

Cited by 11 publications

References 22 publications

Grain refinement of commercially pure aluminum with addition of Ti and Zr elements based on crystallography orientation

Grain refinement of commercially pure aluminum with addition of Ti and Zr elements based on crystallography orientation

Micro-/Nano-Structuring in Stainless Steels by Metal Forming and Materials Processing

Effects of Double Reduction and Annealing on the Texture during Continuous Rolling of Ultrathin Sheets of Low Carbon Steels

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