搅拌摩擦焊接AA2014-T651铝合金接头热处理组织的热稳定性

IF 0.5 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metal Science and Heat Treatment Pub Date : 2025-05-06 DOI:10.1007/s11041-025-01107-8

Pawan Tripathi, Vipin Sharma

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引用次数: 0

摘要

研究了热处理对搅拌摩擦焊接AA2014-T651铝合金接头组织和力学性能的影响。搅拌摩擦焊接使用三角形探针工具在1000和1400 rpm两种不同的工具转速下进行。焊接时，在两种刀具转速下，焊接速度均保持在63 mm/min。研究结果表明，搅拌摩擦焊能显著改善合金组织，并使强化相部分溶解。在573,673,773和823 K的温度下对焊接接头进行热处理1小时。热处理过程中观察到再析出和析出物粗化。结果表明，提高刀具转速可显著提高显微组织的热稳定性，几乎不会引起焊缝中异常晶粒的生长。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Thermal Stability of Microstructure on Heat Treatment of Friction Stir Welded AA2014-T651 Aluminum Joints

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Thermal Stability of Microstructure on Heat Treatment of Friction Stir Welded AA2014-T651 Aluminum Joints

The effect of heat treatment on the microstructure and mechanical properties of AA2014-T651 aluminum alloy joints produced by friction stir welding was studied. Friction stir welding is performed using a triangular probe tool at two different tool rotational speed of 1000 and 1400 rpm. During welding a constant welding speed of 63 mm/min is maintained at both tool rotational speeds. It has been established that friction stir welding leads to a significant refinement of the microstructure and partial dissolution of strengthening precipitates. The welded joints were heat treated at temperatures of 573, 673, 773 and 823 K for one hour. Re-precipitation and precipitate coarsening were observed during heat treatment. It has been shown that increasing the tool rotational speed significantly increases the thermal stability of the microstructure, practically without causing abnormal grain growth in the weld.

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来源期刊

Metal Science and Heat Treatment 工程技术-冶金工程

CiteScore

1.20

自引率

16.70%

发文量

102

审稿时长

4-8 weeks

期刊介绍： Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering. Topics covered include: New structural, high temperature, tool and precision steels; Cold-resistant, corrosion-resistant and radiation-resistant steels; Steels with rapid decline of induced properties; Alloys with shape memory effect; Bulk-amorphyzable metal alloys; Microcrystalline alloys; Nano materials and foam materials for medical use.