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Modeling the strengthening response to aging process of heat-treatable aluminum alloys containing plate/disc- or rod/needle-shaped precipitates
Abstract For the heat-treatable aluminum alloys containing plate or rod/needle-shaped precipitates, a previous model was modified to present quantitative relationships between the yield strengths of
Characterizations of 21-4N to 4Cr9Si2 stainless steel dissimilar joint bonded by electric-resistance-heat-aided friction welding
A new welding process, electric-resistance-heat-aided friction welding (ERHAFW), was introduced in this study. To further improve the joint quality and energy-saving, electric resistance welding was
Friction Stir Brazing: a Novel Process for Fabricating Al/Steel Layered Composite and for Dissimilar Joining of Al to Steel
A novel process of friction stir brazing (FSB) for fabricating Al/steel layered composite (by multipass) and for joining Al to steel (by single pass) was proposed to avoid the wear of pin by steel,
Heat treatment-modulated coupling effect of multi-scale second-phase particles on the ductile fracture of aged aluminum alloys
Abstract Experiments and multi-scale modeling were carried out in order to study the heat treatment-modulated coupling effect of multi-scale second-phase particles on the ductile fracture of two
Microstructure and mechanical properties of CP-Ti/X65 bimetallic sheets fabricated by explosive welding and hot rolling
Abstract CP-Ti/X65-pipe-steel bimetallic sheet was fabricated by explosive welding and hot rolling (W&R). Trace of the wavy CP-Ti/X65 interface formed from explosive welding was observed along the
The influences of multiscale-sized second-phase particles on ductility of aged aluminum alloys
Commercially aged aluminum alloys commonly contain second-phase particles of three class sizes, and all contribute appreciably to the mechanical properties observed at the macroscopic scale. In this
Microstructure and properties of the laser butt welded 1.5-mm thick T2 copper joint achieved at high welding speed
Abstract Laser welding of highly reflective materials, such as copper, has suffered problems such as spatter, underfill and undercut for a long time. This work analyzed the associated mechanism and
Single pass hybrid laser–MIG welding of 4-mm thick copper without preheating
Abstract Laser–arc hybrid welding of highly reflective T2 copper was conducted and significant synergy effect was observed. Effects of primary welding parameters on the shape and integrity of copper
Development of friction stir spot brazing (FSSB)
Abstract As a modified process of friction stir spot welding (FSSW), friction stir spot brazing (FSSB) was developed by (i) using a pinless tool to eliminate keyhole, and (ii) preplacing a braze to
Fe–B–Si–Zr soft magnetic bulk glassy alloys
Abstract The present work is devoted to fabrication of Fe–B–Si–Zr multi-component bulk glassy alloys with good mechanical and soft magnetic properties. Glass formation in Fe–B system is first