Friction Stir Welding of a Thick Al-Zn-Mg Alloy Plate

Buchibabu, V.; Reddy, G. Madhusudhan; Kulkarni, D. V.; De, A.

doi:10.1007/s11665-016-1924-8

Cited by 17 publications

(7 citation statements)

References 23 publications

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“…Similar with conventional SS-FSW [18], the cross-section of DS-FSW joint (Figure 1(b)) can be divided into Nugget Zone (NZ), Thermal-Mechanical Affected Zone (TMAZ), and Heat Affected Zone (HAZ). No obvious defects appear in different sections of the joint.…”

Section: Resultsmentioning

confidence: 99%

Double-side friction stir welding of thick magnesium alloy: microstructure and mechanical properties

Weng

Liu

Chew

et al. 2020

Science and Technology of Welding and Joining

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A two-step double-side friction stir welding (DS-FSW) technique was proposed to join 20 mm thick Mg-Y-Nd magnesium alloy plates. FSW was first carried out on one side of the butt joint, and then the plates were left-right reversed for the other side welding. The DS-FSW joint was free of defects and the weld nugget zone (NZ) showed fine equiaxial grains. An overlap zone with ultrafine grain ( ∼ 2.19 µm) and dispersive particles existed between the two welding tracks, beneficial to the integrity of the joint. The ultimate tensile strength (σ UTS ), yield strength (σ 0.2 ), and elongation rate (δ) of the joint were 277. 6, 204.1 MPa, and 7.27%. A high joint efficiency (σ UTS ratio between the joint and parent material) was achieved at ∼ 82.6%.

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Section: Resultsmentioning

confidence: 99%

Double-side friction stir welding of thick magnesium alloy: microstructure and mechanical properties

Weng

Liu

Chew

et al. 2020

Science and Technology of Welding and Joining

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“…Large nugget width can also be formed in C-FSW of aluminum alloys. For instances, the nugget widths near to the shoulder diameter were separately attained by Doude et al [11] in the 2219 aluminum alloy joint at 600 rpm and by Buchibabu et al [12] in the RDE40 aluminum alloy joint at 450 rpm. However, it is difficult to observe such a large extent of nugget width increase when the rotation speed is improved at an interval of 1000 rpm in C-FSW.…”

Section: Nugget Morphologiesmentioning

confidence: 96%

Effect of rotation speed on nugget structure and property of high rotation speed friction stir welded Al-Mn aluminum alloy

Zhang

Wang

et al. 2017

Int J Adv Manuf Technol

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High rotation speed friction stir welding is a promising low-force welding technique that enables the application of friction stir welding on in situ fabrication and repair. High rotation speed friction stir welding experiments (above 3000 rpm) were conducted on an Al-Mn aluminum alloy. The effect of rotation speed on nugget structure and property was investigated in order to illuminate the process features. The results indicate that a notable increase of nugget size occurs at high rotation speeds of 5000-8000 rpm. With increasing rotation speed, the thermal effect is firstly strengthened and then achieves a steady state. The microstructure evolution is more sensitive to welding temperature as rotation speed varies, and thus, the evolution trends of nugget structure morphology (grain size and substructure distribution density) with rotation speed resemble that of welding temperature. Increasing rotation speed above 4000 rpm effectively improves the nugget hardness due to the enhancement of strain hardening.

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“…But there are also certain shortcomings for FSW, which are mainly manifested in the following four aspects. First, FSW is primarily used on Al, a low melting point metal [27, 30, 31]. For metal materials with higher melting points such as steel, the weld thickness is limited to 25 mm or less [27].…”

Section: Introductionmentioning

confidence: 99%

Direct drive friction welding of a multi-phase Al₁₃Cr_23.5Fe₂₀Co₂₀Ni_23.5 high-entropy alloy

Zuo

Zhang

2021

Science and Technology of Welding and Joining

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Al 13 Cr 23.5 Fe 20 Co 20 Ni 23.5 high-entropy alloy with three phases (face-centered cubic [FCC], A2 and B2) was joined successfully by direct drive friction welding. The microhardness of the welded samples gradually increases as approaching the weld interface, which was related to the microstructural evolution across the weld interface. The weld joint can be divided into four regions: dynamic recrystallisation zone, thermal-mechanically affected zone, heat affected zone and base metal. It is found that the volume fraction ratio of FCC to body-centered cubic (BCC) (A2+B2) phases slightly decreases as approaching the weld interface. The hardening of the joint is attributed to the refined structure, large deformation and the increased volume fraction of the hard BCC phases in the weld joint.

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Friction Stir Welding of a Thick Al-Zn-Mg Alloy Plate

Cited by 17 publications

References 23 publications

Double-side friction stir welding of thick magnesium alloy: microstructure and mechanical properties

Double-side friction stir welding of thick magnesium alloy: microstructure and mechanical properties

Effect of rotation speed on nugget structure and property of high rotation speed friction stir welded Al-Mn aluminum alloy

Direct drive friction welding of a multi-phase Al₁₃Cr_23.5Fe₂₀Co₂₀Ni_23.5 high-entropy alloy

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Friction Stir Welding of a Thick Al-Zn-Mg Alloy Plate

Cited by 17 publications

References 23 publications

Double-side friction stir welding of thick magnesium alloy: microstructure and mechanical properties

Double-side friction stir welding of thick magnesium alloy: microstructure and mechanical properties

Effect of rotation speed on nugget structure and property of high rotation speed friction stir welded Al-Mn aluminum alloy

Direct drive friction welding of a multi-phase Al13Cr23.5Fe20Co20Ni23.5 high-entropy alloy

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Direct drive friction welding of a multi-phase Al₁₃Cr_23.5Fe₂₀Co₂₀Ni_23.5 high-entropy alloy