Fatigue behaviour of friction stir processed AZ91 magnesium alloy produced by high pressure die casting

被引：57

作者：

Cavaliere, P. ^{[1
]}

De Marco, P. P. ^{[1
]}

机构：

[1] Univ Lecce, Fac Engn, INFM, Dept Ingn Innovaz, I-73100 Lecce, Italy

来源：

MATERIALS CHARACTERIZATION | 2007年 / 58卷 / 03期

关键词：

FSP; AZ91; fatigue;

D O I：

10.1016/j.matchar.2006.04.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The room temperature fatigue properties of AZ91 magnesium alloy produced by high pressure die casting (HPDC) as cast, heat treated, friction stir processed (FSP) and FSP and heat treated were studied. The fatigue properties of the material were evaluated for the HPDC magnesium alloy in the as-received state and after a solution treatment at 415 degrees C for 2 h and an ageing treatment at 220 degrees C for 4 h. The heat treatment resulted in a significant increase in the fatigue properties of the HPDC material, while no significance influence of heat treatment was recorded in the FSP condition. The morphology of fracture surfaces was examined by employing a field emission gun scanning electron microscope (FEGSEM). (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：226 / 232

页数：7

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