Analysis of subgrain boundaries in tungsten carbide deformed at high temperature

Sabine Lay; P. Delavignette; J. Vicens

doi:10.1002/pssa.2210900103

Analysis of subgrain boundaries in tungsten carbide deformed at high temperature

Sabine Lay, P. Delavignette, J. Vicens

Research output › peer-review

Abstract

Different subgrain boundaries are observed in tungsten carbide crystals deformed at 1450 °C and studied by TEM. The geometrical elements of the subgrain boundaries are determined. They are mainly tilt subgrain boundaries formed by a single family of perfect dislocations 1/3 <1120>, 1/3 <1123>, or <0001> of the tungsten carbide structure. The majority of these subgrains have a rotation angle close to 1°. Several more complex subgrain boundaries with a mixed character and a higher misorientation angle (3° to 7°) are also observed and an accurate analysis of two of them is performed.

Original language	English
Pages (from-to)	53-68
Number of pages	16
Journal	physica status solidi (a)
Volume	90
Issue number	1
DOIs	https://doi.org/10.1002/pssa.2210900103
State	Published - 16 Jul 1985
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1002/pssa.2210900103

Cite this

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abstract = "Different subgrain boundaries are observed in tungsten carbide crystals deformed at 1450 °C and studied by TEM. The geometrical elements of the subgrain boundaries are determined. They are mainly tilt subgrain boundaries formed by a single family of perfect dislocations 1/3 <1120>, 1/3 <1123>, or <0001> of the tungsten carbide structure. The majority of these subgrains have a rotation angle close to 1°. Several more complex subgrain boundaries with a mixed character and a higher misorientation angle (3° to 7°) are also observed and an accurate analysis of two of them is performed.",

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AU - Delavignette, P.

AU - Vicens, J.

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N2 - Different subgrain boundaries are observed in tungsten carbide crystals deformed at 1450 °C and studied by TEM. The geometrical elements of the subgrain boundaries are determined. They are mainly tilt subgrain boundaries formed by a single family of perfect dislocations 1/3 <1120>, 1/3 <1123>, or <0001> of the tungsten carbide structure. The majority of these subgrains have a rotation angle close to 1°. Several more complex subgrain boundaries with a mixed character and a higher misorientation angle (3° to 7°) are also observed and an accurate analysis of two of them is performed.

AB - Different subgrain boundaries are observed in tungsten carbide crystals deformed at 1450 °C and studied by TEM. The geometrical elements of the subgrain boundaries are determined. They are mainly tilt subgrain boundaries formed by a single family of perfect dislocations 1/3 <1120>, 1/3 <1123>, or <0001> of the tungsten carbide structure. The majority of these subgrains have a rotation angle close to 1°. Several more complex subgrain boundaries with a mixed character and a higher misorientation angle (3° to 7°) are also observed and an accurate analysis of two of them is performed.

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