Study of desirable precipitate-strengthening effects on friction-stir welded joints of third-generation Al–Cu–Li alloys

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Philosophical Magazine Letters Pub Date : 2021-09-29 DOI:10.1080/09500839.2021.1980833

Dongyao Wang, L. Zhan, Quan-qing Zeng, D. He, Kefu Gan

引用次数: 3

Abstract

ABSTRACT A friction-stir welded Al–Cu–Li alloy plate with desirable mechanical performance has been obtained using specific parameters. The microstructures of the nugget zone were systematically characterised and nano-sized phases, including , and were found in its matrix. These phases enhance the strength of the joint to a level comparable with the base metal. The results provide the means of obtaining a reliable and low-cost friction-stir weld (FSW) joint for T3-tempered Al–Cu–Li alloy plates without any post-welding heat treatments. This study shows that, by using appropriate parameters of FSW, the microstructures and mechanical precipitates of the nugget zone can be controlled to enhance the weld quality.

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第三代Al-Cu-Li合金搅拌摩擦焊接接头理想析出强化效果的研究

采用特定的工艺参数，获得了力学性能良好的搅拌摩擦焊接铝铜锂合金板。对熔核区微观结构进行了系统表征，并在基体中发现了纳米相。这些相将接头的强度提高到与母材相当的水平。研究结果为在不进行焊后热处理的情况下获得可靠的低成本搅拌摩擦焊接接头提供了手段。研究表明，采用适当的摩擦焊参数可以控制熔核区的组织和力学相，从而提高焊接质量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Philosophical Magazine Letters 物理-物理：凝聚态物理

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

2.7 months

期刊介绍： Philosophical Magazine Letters is the rapid communications part of the highly respected Philosophical Magazine, which was first published in 1798. Its Editors consider for publication short and timely contributions in the field of condensed matter describing original results, theories and concepts relating to the structure and properties of crystalline materials, ceramics, polymers, glasses, amorphous films, composites and soft matter. Articles emphasizing experimental, theoretical and modelling studies on solids, especially those that interpret behaviour on a microscopic, atomic or electronic scale, are particularly appropriate. Manuscripts are considered on the strict condition that they have been submitted only to Philosophical Magazine Letters , that they have not been published already, and that they are not under consideration for publication elsewhere.