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Interfacial microstructure and mechanical property in friction stir welded Mg/Al joints under low rotation speed

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (6)

The variation of interface microstructure along thickness direction and the associated effects on tensile strength were studied. Thin intermetallic co......

Effects of ultrasonic on friction stir Al-Ti welds: a comparative study

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (7)

Ultrasonic assisted friction stir welding (UaFSW) and conventional friction stir welding (FSW) were conducted on AA6061 and Ti6Al4V alloys. Smaller wa......

Influence of welding sequence on residual stress evolution in Incoloy825/X52 bimetallic clad plate butt-welded joints

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (5)

Residual stress controlling is crucial for the service security of weldments. In this work, experimental measurements and finite element method were i......

Strengthening and toughening strategies of weld metal for in-situ nanoparticle reinforced tin bronze alloy

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (4)

As-cast in-situ nanoparticle reinforced CuSn10Zn2Fe1.5Co0.5 (wt-%) alloy was selected as base metal (BM) and filler for welding. Butt joints were obta......

Analysis of heat and mass transfer in ultrasonic vibration-enhanced friction stir welding of 2195 Al-Li alloy

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (5)

Ultrasonic vibration (UV)-enhanced friction stir welding (UVeFSW) is used for welding of 2195 Al-Li alloy plates. A model is developed to study the he......

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

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (7)

Al13Cr23.5Fe20Co20Ni23.5 high-entropy alloy with three phases (face-centered cubic [FCC], A2 and B2) was joined successfully by direct drive friction ......

Effect of laser power on the grain morphology and microhardness of dual laser-beam bilateral synchronous welded 2219 aluminium alloy T-joint

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (7)

Dual laser-beam bilateral synchronous welding (DLBSW) technology has been widely used in the connection of skin-stringer T-joint. In this study, DLBSW......

Formation of the periodic material flow behaviour in friction stir welding

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (4)

A two-dimensional computational fluid dynamics model is established to verify the correlation between periodic material flow and tool eccentricity dur......

Microstructure and properties of electrically assisted stationary shoulder friction stir welded Ti6Al4V

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (5)

The effect of modifying microstructure and texture by electric current on mechanical properties of electrically assisted stationary shoulder friction ......

Realising equal-strength welding with good conductivity in Cu-Cr-Zr alloy via friction stir welding

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (6)

Realising high-quality welding of the peak aged Cu-Cr-Zr alloy has always been a big challenge. Under a low rotation rate of 400 rev min(-1), equiaxed......

Improved mechanical properties of laser-arc hybrid welded Al/steel dissimilar butt-joint through beam oscillation

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (6)

Al/steel butt-joints are hard to be fusion welded because of the easily formed and unevenly distributed brittle intermetallic compounds (IMCs) at the ......

Improvement of microstructure and mechanical properties of AZ61 Mg alloys subjected to rapid cooling friction stir welding

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (7)

Conventional friction stir welding (FSW) AZ61 Mg alloy weld usually exhibits an Al supersaturated alpha-Mg solid solution with an intense basal textur......

Nugget formation analysis of Al/Steel clinch-resistance hybrid spot welding

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (6)

A clinch-resistance hybrid spot welding method was presented to join Al and steel. The nugget formation was analysed via microstructure observation an......

Numerical study of keyhole-induced porosity suppression mechanism in laser welding with beam oscillation

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (5)

The suppression mechanism of keyhole-induced porosity of oscillating laser beam welding (OLBW) was investigated via numerical simulation with keyhole ......

Experimental study of Cu/Fe underwater self-constrained explosive welding tube

期刊: SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021; 26 (7)

In this study, copper/steel composite tubes were produced by an underwater explosive welding process. Scanning electron microscopy, energy dispersive ......

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