Modeling of the lattice rotations induced by plasma nitriding of 316L polycrystalline stainless steel

被引：35

作者：

Stinville, J. C. ^{[1
,2
,3
]}

Cormier, J. ^{[1
,2
]}

Templier, C. ^{[1
,2
]}

Villechaise, P. ^{[1
,2
]}

机构：

[1] Inst PPRIMME, UPR 3346, ENSMA, Futuroscope, France

[2] Univ Poitiers, Futuroscope, France

[3] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

来源：

ACTA MATERIALIA | 2015年 / 83卷

关键词：

316L stainless steel; Plasma nitriding; Lattice rotation; Orientation-based plasticity model; Taylor-based plasticity model; IMMERSION ION-IMPLANTATION; INDIVIDUAL BULK GRAINS; EXPANDED AUSTENITE; CRYSTALLOGRAPHIC STRUCTURE; PLASTIC-DEFORMATION; S-PHASE; NITROGEN; DIFFUSION; ALLOYS; TEMPERATURE;

D O I：

10.1016/j.actamat.2014.09.052

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：10 / 16

页数：7

共 42 条

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[2]

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