Influence of preheating temperature on the friction stir welded ME20M magnesium alloy

Liu, Wenming; Yan, Yinfei; Ni, Ruiyang; Sun, Tao; Wu, Siyu; Shen, Yifu

doi:10.1080/13621718.2020.1853962

Cited by 6 publications

(2 citation statements)

References 17 publications

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“…7 (a)). The texture strength with slow cooling reaches as high as 3.29 inside the weld, which means that the weld prepared under this condition has more signi cant anisotropy than BM [30]. The texture inside the weld is weakened to 2.17 when the cooling is rapid, which is bene cial for improving the anisotropy of mechanical properties.…”

Section: The Mechanism Of Dynamic Recrystallizationmentioning

confidence: 92%

Dynamic recrystallization mechanism, grain structure evolution, and mechanical behavior in friction stir welding of galvanized steel at different cooling rates

Sun,

Wu,

Yang

et al. 2024

Int J Adv Manuf Technol

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The welded joints of galvanized steel were created by friction stir welding (FSW) with different cooling rate employing a W-Re rotary tool with a large diameter needle. The microstructure evolution was studied by optical microscopy, scanning electron microscopy, and electron backscatter diffraction. The results demonstrate that the microstructural evolution mechanism of the stirring zone is discontinuous dynamic recrystallization at fast cooling rate, while the microstructure has continuous dynamic recrystallization as the primary evolution mechanism at slow cooling rate. In addition, fast cooling is more favorable to the re nement of the organization, weakening of the texture, uniform distribution of dislocations and diffusion precipitation of Fe3C. Based on this, the tensile specimens prepared at the fast cooling rate exhibited yield and fracture strengths exceeding those of the base material with less plasticity loss.

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Section: The Mechanism Of Dynamic Recrystallizationmentioning

confidence: 92%

Dynamic recrystallization mechanism, grain structure evolution, and mechanical behavior in friction stir welding of galvanized steel at different cooling rates

Sun,

Wu,

Yang

et al. 2024

Int J Adv Manuf Technol

Self Cite

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“…In recent years, AZ (Mg-Al-Zn) [ 11 , 12 ], ZK (Mg-Zn-Zr) [ 13 , 14 , 15 ], and other series of magnesium alloy as well as rare-earth magnesium alloys [ 16 ] have been successfully welded using FSW, and defect-free welded joints with good mechanical properties have been obtained. However, these studies on single magnesium alloy have limitations for further expanding the industrial applications of magnesium alloys.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Friction Stir-Welded Dissimilar Joints of ZK60 and Mg-4.6Al-1.2Sn-0.7Zn Alloys

et al. 2021

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In order to clarify the microstructural evolution and the mechanical property of dissimilar friction stir-welded joints of ZK60 and Mg-4.6Al-1.2Sn-0.7Zn magnesium alloys, two types of arrangement with ZK60 at advancing side (AS) or retreating side (RS) were adopted. The macrostructure and the microstructure of the dissimilar welded joints were discussed, and the microhardness and the transverse tensile properties of the joints were measured. There are three stirring sub-zones with different compositions and two clear interfaces within the joints. Due to the effect of both the original grain size of base materials and the growth of recrystallized grains, in the stir zone (SZ), the grain size of ZK60 increased slightly, while the grain size of Mg-4.6Al-1.2Sn-0.7Zn decreased significantly. The dissolution of precipitates was gradually significant from RS to AS within the SZ due to the gradual increase in strain and heat. The grain refinement led to an increase in hardness, while the dissolution of precipitates resulted in a decrease in hardness. The performance of the joints obtained with ZK60 placed on the RS is slightly better than that of that on the AS. The tensile fracture of both joints occurred at the interface between SZ and the thermos-mechanical affected zone at the AS, and showed a quasi-dissociative fracture.

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Developing Ultrafine Twinned Microstructure Enabled Excellent Strength–Ductility Synergy in Mg–Al–Zn Alloy by Submerged Friction Stir Processing

Sun,

Cao,

et al. 2023

Metall Mater Trans A

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Influence of preheating temperature on the friction stir welded ME20M magnesium alloy

Cited by 6 publications

References 17 publications

Dynamic recrystallization mechanism, grain structure evolution, and mechanical behavior in friction stir welding of galvanized steel at different cooling rates

Dynamic recrystallization mechanism, grain structure evolution, and mechanical behavior in friction stir welding of galvanized steel at different cooling rates

Microstructure and Mechanical Properties of Friction Stir-Welded Dissimilar Joints of ZK60 and Mg-4.6Al-1.2Sn-0.7Zn Alloys

Developing Ultrafine Twinned Microstructure Enabled Excellent Strength–Ductility Synergy in Mg–Al–Zn Alloy by Submerged Friction Stir Processing

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