An evaluation of the creep characteristics of an AZ91 magnesium alloy composite using acoustic emission

被引：16

作者：

Chmelík, F

Lukác, P

Janecek, M

Moll, F

Mordike, BL

Kainer, KU

Langdon, TG

机构：

[1] Charles Univ Prague, Dept Met Phys, CZ-12116 Prague 2, Czech Republic

[2] Tech Univ Clausthal, Dept Mat Engn & Technol, D-38678 Clausthal Zellerfeld, Germany

[3] GKSS Invest Ctr, Inst Mat Res, D-21502 Geesthacht, Germany

[4] Univ So Calif, Dept Aerosp & Mech Engn & Mat Sci, Los Angeles, CA 90089 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2002年 / 338卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

acoustic emission; composites; creep; fracture; magnesium;

D O I：

10.1016/S0921-5093(02)00086-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Creep experiments were undertaken to determine the potential for using acoustic emission (AE) to monitor the high temperature deformation of an unreinforced AZ91 magnesium alloy and a similar alloy reinforced with short alumina fibers after a conventional T6 heat treatment. Samples of each material were tested to failure and the fracture surfaces of selected specimens were examined using scanning electron microscopy. The results show there is an improved creep resistance in the composite by comparison with the unreinforced alloy. It is demonstrated that the use of AE provides a sensitive procedure for monitoring the nature of the creep deformation. (C) 2002 Published by Elsevier Science B.V.

引用

页码：1 / 7

页数：7

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