AA5052-H32/AA5083-H111异种铝合金的FSPed TIG和TIG焊接力学性能和冶金学表征

IF 0.9 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Metallurgical Research & Technology Pub Date : 2021-01-01 DOI:10.1051/METAL/2021005

Antony Prabu Dhanaraj, S. Kumarasamy

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引用次数: 6

摘要

本文介绍了采用ER5356焊丝对AA5052-H32和aa5083 - h11异种合金进行TIG焊接的搅拌摩擦处理(FSP)力学性能和冶金学表征。在相同组合下，对未处理TIG焊件和FS处理TIG焊件进行了比较。通过光学显微镜(OM)、扫描电镜(SEM)、拉伸强度分析和显微硬度测试对焊接接头进行了研究。结果表明，与未处理TIG焊接接头的抗拉强度(192.5 MPa)和硬度(70 HV)相比，经过FSPed处理的TIG焊接接头的力学性能得到了改善，抗拉强度(224.5 MPa)和硬度(104 HV)均有所提高。此外，在力学表征过程中，FSPed TIG焊缝在搅拌摩擦(FS)加工区表现出细小的晶粒，具有细小的晶粒组织，从而提高了搅拌摩擦(FS)加工区的硬度。与未加工的TIG焊接接头相比，FS接头的力学性能优越。

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Mechanical properties and metallurgical characterization of FSPed TIG and TIG welded AA5052-H32/AA5083-H111 dissimilar aluminium alloys

This work describes the mechanical properties and metallurgical characterization of Friction Stir Processing (FSP) on TIG welded dissimilar AA5052-H32 and AA5083-H111 alloys using ER5356 filler wire. A comparison is drawn between unprocessed TIG weld and FS Processed (FSPed) TIG welded specimen with the identical combination. The fabricated welded joints were investigated By Optical Microscope (OM), Scanning Electron Microscope (SEM) Analysis, Tensile Strength Analysis, and Micro-Hardness testing. The results illustrate the improvement in mechanical properties after FSPed of the TIG welded joint resulting in enhanced tensile strength (224.5 MPa) and hardness (104 HV) in contrast to the unprocessed TIG weld joints with (192.5 MPa) and (70 Hv). In addition, during the mechanical characterization, the FSPed TIG welds show fine grain at the Friction Stir (FS) processed zone with fine grain structures which improves the hardness at the FS zone. The mechanical property of FS joint is superior when compared to the unprocessed TIG weld joint.

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来源期刊

Metallurgical Research & Technology METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

1.70

自引率

9.10%

发文量

审稿时长

4.4 months

期刊介绍： Metallurgical Research and Technology (MRT) is a peer-reviewed bi-monthly journal publishing original high-quality research papers in areas ranging from process metallurgy to metal product properties and applications of ferrous and non-ferrous metals and alloys, including light-metals. It covers also the materials involved in the metal processing as ores, refractories and slags. The journal is listed in the citation index Web of Science and has an Impact Factor. It is highly concerned by the technological innovation as a support of the metallurgical industry at a time when it has to tackle severe challenges like energy, raw materials, sustainability, environment... Strengthening and enhancing the dialogue between science and industry is at the heart of the scope of MRT. This is why it welcomes manuscripts focusing on industrial practice, as well as basic metallurgical knowledge or review articles.