通过 FSW 研究 2A12 和 2A97 铝合金 T 形接头的微观结构和腐蚀行为

IF 3.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Today Communications Pub Date : 2024-09-12 DOI:10.1016/j.mtcomm.2024.110368

Wen Li, Shaojie Li, Yang Nan, Xuepiao Bai, Weiping Li

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引用次数: 0

摘要

采用搅拌摩擦焊（FSW）焊接的高强度铝合金 T 形接头有望取代传统的铆接结构。然而，由于 T 形接头的腐蚀问题，搅拌摩擦焊在航空航天工业中的推广仍受到阻碍。本文制备了 2A12 和 2A97 铝合金的 T 形接头，并通过结构表征和腐蚀试验对其进行了研究。特别对腐蚀试验前后 T 形接头中不同微区的微观结构和成分进行了表征和分析。阐明了 T 型接头中不同微区的内部关系及其腐蚀行为，为改进焊接工艺和焊后表面保护提供了理论依据。

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Study on microstructure and corrosion behavior of T-joints of 2A12 and 2A97 aluminum alloys by FSW

T-shaped joints of high-strength aluminum alloy welded by friction stir welding (FSW) are expected to replace the traditional riveting structures. However, the popularization of FSW in aerospace industry is still hindered by the corrosion of T-joint. Herein, T-joints of 2A12 and 2A97 aluminum alloys are prepared and studied via structural characterization and corrosion tests. The microstructures and constituents of different micro zones in T-joints before and after corrosion tests are characterized and analyzed particularly. The internal relationship between different micro zones in T-joints and their corrosion behaviors are clarified, which provides theoretical basis for improving welding process and surface protection after welding.

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来源期刊

Materials Today Communications Materials Science-General Materials Science

CiteScore

5.20

自引率

5.30%

发文量

1783

审稿时长

51 days

期刊介绍： Materials Today Communications is a primary research journal covering all areas of materials science. The journal offers the materials community an innovative, efficient and flexible route for the publication of original research which has not found the right home on first submission.