Performance of wrought aluminium and magnesium alloy tubes in three-point bending

被引：46

作者：

Hilditch, Tim ^{[1
]}

Atwell, Dale ^{[1
]}

Easton, Mark ^{[2
]}

Barnett, Matthew ^{[1
]}

机构：

[1] Deakin Univ, CMFI, CAST Cooperat Res Ctr, Geelong, Vic 3217, Australia

[2] Monash Univ, Dept Mat Engn, CAST Cooperat Res Ctr, Clayton, Vic 3800, Australia

来源：

MATERIALS & DESIGN | 2009年 / 30卷 / 07期

关键词：

Non-ferrous metals and alloys; Wrought; Extrusion; MICROSTRUCTURE;

D O I：

10.1016/j.matdes.2008.11.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This present work examines the load carrying capacity, energy absorption and fracture characteristics of wrought magnesium and aluminium alloy tubes in three-point bending. Magnesium alloy AZ31, and aluminium alloys 6063 and 7075, were extruded into cylindrical tubes of both equivalent thickness and mass. A strong thickness effect was present meaning that the AZ31 tube had significantly higher load and energy absorption performance than an equivalent mass 6063 tube, albeit not as high as the 7075 tube. Hinge formation and maximum load was delayed for the magnesium alloy, meaning that a high energy absorption rate persisted to higher deformation displacements than the aluminium alloys. It was also found that fracture during deformation was dependent on the indenter diameter, tube thickness and lower support separation. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2316 / 2322

页数：7

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