Influence of Twin Thickness and Grain Size on the Tensile Behavior of Fully Nanotwinned CuAl Alloys

被引：20

作者：

Heckman, Nathan M. ^{[1
]}

Velasco, Leonardo ^{[1
]}

Hodge, Andrea M. ^{[1
]}

机构：

[1] Univ So Calif, Dept Chem Engn & Mat Sci, Mork Family Dept, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA

来源：

ADVANCED ENGINEERING MATERIALS | 2016年 / 18卷 / 06期

基金：

美国国家科学基金会;

关键词：

HIGH-STRENGTH; DUCTILITY; METALS;

D O I：

10.1002/adem.201500496

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the mechanical properties of fully nanotwinned Cu-2 wt% Al and Cu-6 wt% Al are evaluated by tension testing utilizing digital image correlation, allowing for the observation of local macroscopic deformation. By individually varying twin thickness, grain size, and composition, the isolated effect of each of these parameters on both strength and ductility is observed. Increased strength correlated with decreasing grain size or increasing Al content. It is observed that with decreasing twin thickness the ductility could be improved.

引用

页码：918 / 922

页数：5

共 37 条

[11] THE ELASTIC BEHAVIOUR OF A CRYSTALLINE AGGREGATE [J].