Abstract S500MC steel is a grade of high-strength low-alloy (HSLA) which widely used in the automotive industry and for agricultural machinery equipment. Considering properties this alloy, selection welding process parameters becomes essential to ensure that HSLA assemblies meet specific service requirements. In work, mechanical metallurgical produced by autogenous laser beam (LBW) automatic ga...

This work is focused on understanding the significant factors affecting fatigue strength of laser-welded butt joints in thin high-strength low-alloy (HSLA) steel. The effects weld profile, imperfections, hardness, and residual stresses were considered to explain results found S-N curves four welded series. showed acceptable although series presented multiple-imperfections. analysis behavior at ...

Solubility of mixed niobium-titanium carbonitrides in commercially relevant High-Strength Low-Alloy (HSLA) steel was investigated by combined use electrical resistivity measurements and APT after interrupted quenching from soaking temperatures between 950 1250 °C. Increasing the bulk material towards higher proportional to nominal niobium addition which varied 0.002 0.022–0.043–0.085 wt.-%. Cor...

The thermo-mechanical control processing (TMCP) of low carbon (C) Nb-Ti-containing HSLA steel with different cooling rates from 5 to 20 ◦C/s was simulated using a Gleeble 3500 system. The samples’ microstructure was characterized and the tensile properties measured. The results show that a microstructure mainly consisting of quasi-polygonal ferrite (QPF), granular bainitic ferrite (GBF), and ma...

Zn-Al-Mg coatings are important materials for the corrosion protection of steel sheets. However, susceptibility towards cracking limits formability performance these coatings. In this study, we focus on effect underlying substrate behavior in order to elucidate this, a high-strength low-alloy (HSLA) and an interstitial-free (IF) coated with two different ZnAlMg without binary eutectic microstru...