Mechanical behavior of gas metal arc AA6082-T6 weldments

被引：11

作者：

Leoni, Francesco ^{[1
]}

Sandness, Lise ^{[1
]}

Grong, Oystein ^{[1
]}

Berto, Filippo ^{[1
]}

机构：

[1] NTNU, Fac Engn, Richard Birkelands Vei 2B, N-7491 Trondheim, Norway

来源：

25TH INTERNATIONAL CONFERENCE ON FRACTURE AND STRUCTURAL INTEGRITY | 2019年 / 18卷

关键词：

Weldment; GMAW; MIG; Aluminum; Tensile; Fatigue; Charpy; Vickers Hardness;

D O I：

10.1016/j.prostr.2019.08.187

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A series of experiments have been conducted to determine the mechanical properties of AA6082-T6 plates which have been joined by means of the Gas Metal Arc technique. Hardness Vickers tests, bending tests, tensile tests, fatigue tests and Charpy V-notch tests have been carried out to characterize the joints. In addition, an accurate microstructure analysis of selected fracture surfaces has been done. From the tests it is concluded that HAZ softening brings to a reduction in strength with respect to the parent material. It has been noticed that there is a minimum value of hardness in the heat affected zone, that corresponds to the weakest part of the component. From the Charpy V-notch impact tests it has been observed that the material in the HAZ has the highest energy absorption capacity. (C) 2019 The Authors. Published by Elsevier B.V.

引用

页码：449 / 456

页数：8

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