Microstructure and mechanical properties of Al/Mg dissimilar laminated composites fabricated via friction stir additive manufacturing

IF 5.5 1区材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING

Transactions of Nonferrous Metals Society of China Pub Date : 2026-09-01 Epub Date: 2026-10-08 DOI:10.1016/S1003-6326(26)67116-6

Wen-xin ZHANG, Yang CHEN, Xian-kun ZHANG, Lei SHI, Chuan-song WU, Song GAO

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引用次数: 0

Abstract

Friction stir additive manufacturing (FSAM) is one of the most suitable processes for the manufacturing of Al/Mg dissimilar laminated composites. In this study, the single-layer single-pass FSAM and single-layer multi-pass FSAM of Al/Mg dissimilar alloys were conducted. The surface forming, macroscopic metallography, microstructure and mechanical properties were investigated. In the single-layer single-pass FSAM, the sample exhibited a peak tensile strength of 194 MPa at a rotation speed of 800 r/min and a travel speed of 75 mm/min, which was about 79.5% that of the Mg base metal. Components with good mechanical properties were obtained under low-heat-input conditions. In multi-pass FSAM, the thickness of intermetallic compounds decreased gradually from the first pass to the fourth pass. The maximum tensile strength of the alloy was obtained at 800 r/min and 75 mm/min. The tensile strength from the first pass to the fourth pass increased due to the increase of friction stir repetitions.

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搅拌摩擦增材制备Al/Mg异种层状复合材料的微观结构和力学性能

搅拌摩擦增材制造（FSAM）是制备Al/Mg异种复合材料最合适的工艺之一。本研究分别进行了Al/Mg异种合金的单层单道次FSAM和单层多道次FSAM。研究了复合材料的表面成形、宏观金相、显微组织和力学性能。在单层单道次FSAM中，当转速为800 r/min、行程速度为75 mm/min时，试样的峰值抗拉强度为194 MPa，约为Mg母材的79.5%。在低热输入条件下获得了具有良好力学性能的构件。在多道次FSAM中，金属间化合物的厚度从第一道次到第四道次逐渐减小。合金的最大抗拉强度为800r /min和75mm /min。由于搅拌摩擦次数的增加，从第一道次到第四道次的拉伸强度增加。

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来源期刊

Transactions of Nonferrous Metals Society of China 工程技术-冶金工程

CiteScore

7.40

自引率

17.80%

发文量

8456

审稿时长

3.6 months

期刊介绍： The Transactions of Nonferrous Metals Society of China (Trans. Nonferrous Met. Soc. China), founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, INSPEC, CA, METADEX, AJ and JICST.