Thermal-hydrogen treatment can effectively refine the microstructure and improve the thermoforming, machining performance and superplasticity of titanium alloy. In this study, pulsed electric current is used to replace the traditional heat treatment process for the thermal-hydrogen treatment of...

Thermal-hydrogen treatment can effectively refine the microstructure and improve the thermoforming, machining performance and superplasticity of titanium alloy. In this study, pulsed electric current is used to replace the traditional heat treatment process for the thermal-hydrogen treatment of...

The microstructure of a successfully applied Al-Si bond coating for the interconnection of cast aluminum with a conventional steel substrate is analyzed in detail. The bond coating formed a 10-20 µm columnar Al layer which is attached to the steel substrate with an intermetallic layer (2-3 µm)...

The substitution of K+ ion by Ca2+ and Sr2+ in K2O-SiO2-MgO-Al2O3-B2O3-MgF2-Li2O-AlPO4 glass is executed and the relevant effects on crystallization and microstructure are explored. The glass monoliths synthesized by single-step melt-quenching at 1500±10°C were transparent in nature. Density...

Using powders of different particle sizes, 9Cr steel samples are additively prepared by laser coaxial powder feeding technology. 9Cr steel is a material that has been widely used in pressure vessel parts in thermal power plants and nuclear power plants, and has good high-temperature creep...

Laser-MAG hybrid welding has broad application prospects in pipeline steel welding due to the advantages of high penetration and high efficiency. Since there is very little wire and shielding gas reaching the bottom of the molten pool, the inhomogeneous microstructure appeared in the thickness...

Internal and surface imperfections are known to reduce the fatigue strength of parts fabricated by laser powder bed fusion (LPBF). Post-treatment can play a key role to ameliorate the adverse effects of these defects. In this study, severe vibratory peening, as a novel surface treatment based on...

Samples of a Fe–34.5Mn–0.04C (wt. %) austenitic steel with average grain size ranging from 0.45 to 21.0 μm were produced by cold rolling and subsequent annealing. The effects of microstructure on room–temperature (RT) and cryogenic tensile properties and on the related fracture modes were...

Wire and arc additive manufacturing (WAAM) is promising for rapid fabrication of the blanket component in fusion plant with a complex embedded inner-channeled structure due to its high forming efficiency and low cost. In this work, a 9Cr reduced-activation ferritic/martensitic steel (RAFMs) thin...

An extraordinary high-strength dilute Mg-0.8Al-0.1Ca-0.6Mn (wt. %) alloy wire was successfully developed by hot drawing, which exhibits high tensile yield strength of 394 MPa, ultimate tensile strength of 431 MPa and moderate elongation to failure of 6.0%. The high strength was mainly attributed...