A microstructure-based mechanical model of deformation-induced surface roughening in polycrystalline α-titanium at the mesoscale

被引：5

作者：

Emelianova, Evgeniya ^{[1
,2
]}

Romanova, Varvara ^{[1
]}

Zinovieva, Olga ^{[1
]}

Pisarev, Maxim ^{[1
,2
]}

Balokhonov, Ruslan ^{[1
]}

机构：

[1] Inst Strength Phys & Mat Sci SB RAS, Lab Comp Aided Design Mat, Tomsk, Russia

[2] Natl Res Tomsk State Univ, Fac Phys & Engn, Tomsk, Russia

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2022年 / 29卷 / 28期

基金：

俄罗斯科学基金会;

关键词：

Microstructure-based model; crystal plasticity; finite-element method; representative volume element size; slip systems; surface roughening; CRYSTAL PLASTICITY MODEL; SLIP SYSTEMS; PURE TITANIUM; GRAIN-SIZE; TEXTURE; ROUGHNESS; BEHAVIOR; ALLOYS; EVOLUTION; STRESS;

D O I：

10.1080/15376494.2021.1995916

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The article presents a microstructure-based mechanical model of hexagonal close-packed (hcp) alpha-titanium representative of the mesoscale and analyzes the contribution of a pyramidal slip to plastic deformation. We discuss the size of a representative volume element (RVE) enabling mesoscale phenomena to be correctly reproduced, focusing on deformation-induced surface roughening (DISR) and plastic strain localization. It is shown that the ignorance of a pyramidal slip in simulations leads to overestimated stress values in an hcp material. A polycrystalline model is capable of reproducing the mesoscale phenomena until plastic strain begins to localize at the length scale comparable to the model size.

引用

页码：7364 / 7374

页数：11

共 38 条

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