Silicon effect, at a lower level around 3.5 wt% on the tensile, impact, and fracture properties of Al-based automotive alloys has been investigated through T6 heat treatment. The results demonstrate that tensile strength increases in aged mainly due to development Al2Cu Mg2Si precipitates inside Al-matrix. alloy with higher amount Si shows formation Si-rich hinder dislocation movement causing v...

-s 211 WELDING JOURNAL ABSTRACT. Laser beam welding (LBW) has become common practice in the production lines of several industrial sectors including the electronics, domestic appliances, and automotive industries. The advantages of LBW over conventional fusion welding processes (mainly GMAW and GTAW) is the lower welding heat input and smaller weld pool and HAZ dimensions, which are associated ...

We have studied bulk MgB2 synthesized by reaction of MgH2 and B with and without SiC nanoparticles and at a range of reaction temperatures. All of the samples showed enhanced upper critical fields compared to most bulk MgB2, including the sample with 10 at. % SiC reacted at 600 °C, which showed Hc2 0 K 42 T. Extensive transmission electron microscopy TEM and STEM observations show that using Mg...

The effect of heat and strain during the semisolid processing route on microstructural evolution mechanical performance Al-5.5wt%Si-5wt%Zn-0.2wt%Mg alloy was evaluated. as cast heated partially melted to 588 °C (fs = 0.40), thixoformed (in an open die forged) solution heat-treated (SHT) at 525 for 1 6 h. chemical distribution (SEM-EDS) main alloying elements were evaluated each step route. SHT ...