Modeling of the Lattice Rotations Induced by Plasma Nitriding of 316L Polycrystalline Stainless Steel

J. C. Stinville; J. Cormier; C. Templier; P. Villechaise

doi:10.1016/j.actamat.2014.09.052

Modeling of the Lattice Rotations Induced by Plasma Nitriding of 316L Polycrystalline Stainless Steel

J. C. Stinville, J. Cormier, C. Templier, P. Villechaise

Research output: Contribution to journal › Article › peer-review

Abstract

The anisotropic lattice rotation of individual grains induced by plasma nitriding of 316L austenitic stainless steel has been analyzed with the aim of identifying correlations between the initial grain's orientation and the rotation behavior. Due to the quite large nitriding-induced strains (up to 20%), the Taylor-Bishop-Hill model has been chosen for the simulation of the lattice rotations. The model predicts the overall rotations, both amplitude and direction, reasonably well over the entire stereographic triangle. The magnitude of the rotations is in agreement with the level of deformation induced by insertion of nitrogen atoms into an austenitic lattice. With regard to plasticity, parallels between the nitriding process and tensile elongation along the normal surface can be drawn.

Original language	English (US)
Pages (from-to)	10-16
Number of pages	7
Journal	Acta Materialia
Volume	83
DOIs	https://doi.org/10.1016/j.actamat.2014.09.052
State	Published - Jan 15 2015
Externally published	Yes

Keywords

316L stainless steel
Lattice rotation
Orientation-based plasticity model
Plasma nitriding
Taylor-based plasticity model

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Polymers and Plastics
Metals and Alloys

Online availability

10.1016/j.actamat.2014.09.052

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title = "Modeling of the Lattice Rotations Induced by Plasma Nitriding of 316L Polycrystalline Stainless Steel",

abstract = "The anisotropic lattice rotation of individual grains induced by plasma nitriding of 316L austenitic stainless steel has been analyzed with the aim of identifying correlations between the initial grain's orientation and the rotation behavior. Due to the quite large nitriding-induced strains (up to 20%), the Taylor-Bishop-Hill model has been chosen for the simulation of the lattice rotations. The model predicts the overall rotations, both amplitude and direction, reasonably well over the entire stereographic triangle. The magnitude of the rotations is in agreement with the level of deformation induced by insertion of nitrogen atoms into an austenitic lattice. With regard to plasticity, parallels between the nitriding process and tensile elongation along the normal surface can be drawn.",

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author = "Stinville, {J. C.} and J. Cormier and C. Templier and P. Villechaise",

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doi = "10.1016/j.actamat.2014.09.052",

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AU - Stinville, J. C.

AU - Cormier, J.

AU - Templier, C.

AU - Villechaise, P.

PY - 2015/1/15

Y1 - 2015/1/15

N2 - The anisotropic lattice rotation of individual grains induced by plasma nitriding of 316L austenitic stainless steel has been analyzed with the aim of identifying correlations between the initial grain's orientation and the rotation behavior. Due to the quite large nitriding-induced strains (up to 20%), the Taylor-Bishop-Hill model has been chosen for the simulation of the lattice rotations. The model predicts the overall rotations, both amplitude and direction, reasonably well over the entire stereographic triangle. The magnitude of the rotations is in agreement with the level of deformation induced by insertion of nitrogen atoms into an austenitic lattice. With regard to plasticity, parallels between the nitriding process and tensile elongation along the normal surface can be drawn.

AB - The anisotropic lattice rotation of individual grains induced by plasma nitriding of 316L austenitic stainless steel has been analyzed with the aim of identifying correlations between the initial grain's orientation and the rotation behavior. Due to the quite large nitriding-induced strains (up to 20%), the Taylor-Bishop-Hill model has been chosen for the simulation of the lattice rotations. The model predicts the overall rotations, both amplitude and direction, reasonably well over the entire stereographic triangle. The magnitude of the rotations is in agreement with the level of deformation induced by insertion of nitrogen atoms into an austenitic lattice. With regard to plasticity, parallels between the nitriding process and tensile elongation along the normal surface can be drawn.

KW - 316L stainless steel

KW - Lattice rotation

KW - Orientation-based plasticity model

KW - Plasma nitriding

KW - Taylor-based plasticity model

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Modeling of the Lattice Rotations Induced by Plasma Nitriding of 316L Polycrystalline Stainless Steel

Abstract

Keywords

ASJC Scopus subject areas

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