Friction stir welding of AZ31 magnesium alloy: A review

Desai, Ashish M.; Khatri, Bharat C.; Patel, Vivek; Rana, Harikrishna

doi:10.1016/j.matpr.2021.03.082

Cited by 9 publications

(3 citation statements)

References 134 publications

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“…The L600 shows the highest (0001) texture strength among all welding conditions within the whole welded zone. However, the value of the highest (0001) texture strength of L600 is still much lower than that in the conventional one-sided FSW (which is usually over 40) regardless of the welding parameters [16,17,19]. This infers that the existence of the lower-tool altered the texture evolution during the welding process that reduced the (0001) texture strength at the welded zone.…”

Section: Resultsmentioning

confidence: 95%

“…As a novel joining method of Mg alloy, friction stir welding (FSW) overcomes most of the problems existing in fusion welding like porosity, hot crack, element segregation, and grain coarsening [14][15][16]. However, conventional FSW of Mg alloy also forms a strong (0001) texture at the stir zone (SZ), which leads to a decrease in joint strength [17][18][19]. In recent years, a novel FSW method called double-sided friction stir welding (DFSW) was reported, utilising the asymmetrical layout of two individually driven tools to solve this problem successfully [20].…”

Section: Introductionmentioning

confidence: 99%

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The material flow and texture-weakening mechanism in double-sided friction stir welded Mg alloy

Zhou

Sun

Morisada

et al. 2023

Science and Technology of Welding and Joining

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In conventional friction stir welding of magnesium alloys, a strong (0001) texture at the welded zone is inevitable, which deteriorates the joint mechanical properties. A novel method called 'double-sided friction stir welding' solved this problem by weakening the texture. However, the texture-weakening mechanism remains unclear. In this study, the mechanism of the texture weakening in double-sided friction stir welded Mg alloy was systematically analysed. The welding temperature and the material flow mode were revealed to control the (0001) texture randomisation simultaneously. The unique material flow at the mid-thickness layer caused by the double-sided friction stir welding was revealed to match the 'beat phenomenon' for the first time, which was revealed as the dominant mechanism for the (0001) texture randomisation.

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Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

The material flow and texture-weakening mechanism in double-sided friction stir welded Mg alloy

Zhou

Sun

Morisada

et al. 2023

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

show abstract

“…At a low ratio of rotational speed to linear speed, the heat input reduces the refinement of the microstructure and increases the hardness. Increasing the heat generation will result in greater refinement of the microstructure, improving the properties of the material [6]. An increase in the rotational speed of the tool may result in a change in the morphology and an increase in the refinement of the secondary phases, causing a rise in hardness and a reduction in abrasive wear, as evidenced by the results of the research presented by Alidokht et al [7].…”

Section: Introductionmentioning

confidence: 96%

Experimental investigations of heat generation and microstructure evolution during friction stir processing of SnSbCu alloy

Leszczyńska-Madej

Hrabia-Wiśnios

Węglowska

et al. 2022

Archiv.Civ.Mech.Eng

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The paper presents the results of experimental investigations of the heat generation and microstructure evolution during the friction stir processing (FSP) of the SnSb11Cu6 alloy. The Triflute tool was used for modification; the process was carried out using two rotational speeds of the tool: 280 and 560 RPM and a constant linear speed of 355 mm/min. Microstructure studies were performed employing the techniques of light microscopy and scanning electron microscopy along with analysis of the chemical composition of micro-areas. Additionally, the phase composition was investigated by means of the X-ray diffraction method, and electron backscatter diffraction (EBSD) analysis and hardness testing were performed before and after FSP modification. Furthermore, measurements of the temperature directly on the modified surface by means of a thermal imaging camera and the temperature in the modified zone with a thermocouple system were performed. It was proved that using FSP to modify the SnSbCu alloy promotes refinement and homogenization of the microstructure, as well as improvement of the hardness. The hardness of the starting material was 24 HB, and after FSP, the hardness increased and amounted to, respectively, 25 and 27 HB after processing at 280 and 560 RPM. The microstructure in the stir zone is formed by the dynamic recrystallization (DRX) process and consists of almost equiaxed tin-rich matrix grains with a size of approx. 5-30 µm and fine particles of Cu 6 Sn 5 and SnSb phases. The temperature distribution in the FSP zone is not uniform and changes in a gradient manner.

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Mechanical Properties of Additive Friction Stir Deposits

Avery,

Perry

2024

Solid‐State Metal Additive Manufacturing

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Friction stir welding of AZ31 magnesium alloy: A review

Cited by 9 publications

References 134 publications

The material flow and texture-weakening mechanism in double-sided friction stir welded Mg alloy

The material flow and texture-weakening mechanism in double-sided friction stir welded Mg alloy

Experimental investigations of heat generation and microstructure evolution during friction stir processing of SnSbCu alloy

Mechanical Properties of Additive Friction Stir Deposits

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