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
收藏
页码：7364 / 7374
页数：11
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