A Study of the γ-to-α Transformation Using EBSD Techniques

You Liang He; Stéphane Godet; Pascal J. Jacques; John J. Jonas

doi:10.4028/www.scientific.net/MSF.495-497.1201

Paper Titles

Representation of Misorientations in Rodrigues-Frank Space: Application to the Bain, Kurdjumov-Sachs, Nishiyama-Wassermann, Pitsch and Greninger-Troiano Orientation Relationships
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Monte-Carlo Version of Vertex Model Applied to Recrystallization Modeling
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Nucleation of Secondary Recrystallization in Ultra Low Carbon Steel
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Nucleation and Texture Development during Dynamic Recrystallization of Copper
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A Study of the γ-to-α Transformation Using EBSD Techniques
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Simulation of Recrystallization Textures in fcc Materials Starting from Self-Consistent Modelling Results
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Effect of Deformation Texture Component Composition on Cube Texture Formation during Primary Recrystallization in Ni-Based Alloys
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Calculation of the Parent hcp Grain Orientation from Inherited Variants in the hcp to t and in the hcp to cc Phase Transformations Application to the α-γ Transformation in TiAl-Based Alloys
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Micromechanisms Involved in Grain Boundary Engineering
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HomeMaterials Science ForumMaterials Science Forum Vols. 495-497A Study of the γ-to-α Transformation Using EBSD...

A Study of the γ-to-α Transformation Using EBSD Techniques

Abstract:

The crystallographic relationship between the g and a phases in samples of the Gibeon meteorite and a TRIP steel was investigated by means of EBSD techniques. The orientations of the two phases were measured and are represented in pole figures. The results are compared to predictions made on the basis of the Bain, Kurdjumov-Sachs (K-S), Nishiyama-Wassermann (NW), Greninger-Troiano (G-T) and Pitsch orientation relationships. The local misorientation between individual fcc and bcc crystals along their common interface was measured to demonstrate the way in which the exact orientation relationship varies along the boundary. The local orientations within lamellae and laths of kamacite and bainite are compared to that in recrystallised ferrite polygons. The occurrence of variant selection during the transformation of deformed austenite is analyzed using a recent dislocation-based model.

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Materials Science Forum (Volumes 495-497)

Pages:

1201-1206

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.495-497.1201

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Online since:

September 2005

Authors:

You Liang He, Stéphane Godet, Pascal J. Jacques, John J. Jonas

Keywords:

Electron Backscatter Diffraction (EBSD), Iron-Nickel Meteorites, Kurdjumov-Sachs, Nishiyama-Wassermann, TRIP Steel, Variant Selection

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