A criterion for slip transfer at grain boundaries in Al

被引：71

作者：

Alizadeh, R. ^{[1
,2
]}

Pena-Ortega, M. ^{[3
]}

Bieler, T. R. ^{[4
]}

LLorca, J. ^{[1
,3
]}

机构：

[1] IMDEA Mat Inst, C Eric Kandel 2, Madrid 28906, Spain

[2] Sharif Univ Technol, Dept Mat Sci & Engn, Tehran, Iran

[3] Univ Politecn Madrid, Dept Mat Sci, ETS Ingenieros Caminos, Madrid 28040, Spain

[4] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA

来源：

SCRIPTA MATERIALIA | 2020年 / 178卷

基金：

欧洲研究理事会;

关键词：

Grain boundaries; Slip; Aluminum; Dislocation; DISLOCATION DENSITY; FCC POLYCRYSTALS; PLASTICITY; HOMOGENIZATION; DEFORMATION; MODEL;

D O I：

10.1016/j.scriptamat.2019.12.010

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The slip transfer phenomenon was studied at the grain boundaries of pure Aluminum by means of slip trace analysis. Either slip transfer or blocked slip was analyzed in more than 250 grain boundaries and the likelihood of slip transfer between two slip systems across the boundary was assessed. The experimental results indicate that slip transfer was very likely to occur if the residual Burgers vector, Delta b, was below 0.35b and the Luster-Morris parameter was higher than 0.9, and that the ratio of the Luster-Morris parameter and the residual Burgers vector has a threshold above which slip transfer is probable. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：408 / 412

页数：5

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