This study aims to present an empirical formulation to predict equivalent temperature for steel and concrete components of the innovative concrete-filled cold-formed steel (CF-CFS) built-up column sections. This paper (part A) presents a 2-dimensional (2D) finite element modeling technique to...

Innovative concrete-filled cold-formed steel (CF-CFS) built-up column sections subjected to axial compression and elevated temperatures were previously investigated, assessing their structural fire performance in detail. However, the analytical fire resistance methodology presented in the...

Advanced iron boride protective coatings on carbon steels were tested and evaluated, for the first time, in actual corrosion conditions in the geothermal Rittershoffen and Soultz-sous-Forets sites (France) with positive results. Moreover, large size boronized spools demonstrated high performance...

A superhydrophobic surface with a contact angle greater than 160° and a sliding angle ~2° was fabricated by a simple, low-cost chemical etching method. The evaporation characteristics of glycerol-water droplets with different viscosities on the superhydrophobic surface and the smooth surface...

A superhydrophobic surface with a contact angle greater than 160° and a sliding angle ~2° was fabricated by a simple, low-cost chemical etching method. The evaporation characteristics of glycerol-water droplets with different viscosities on the superhydrophobic surface and the smooth surface...

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...

Based on the electroplasticity effect and dynamic strain aging interpretations, serrated flow under the influence of electroplasticity in medium Mn steel is investigated. With the decrease of dislocation waiting time and the increase of critical strain, the continuity of plastic deformation...

The temper embrittlement (TE) and hydrogen embrittlement (HE) of some dual-phase (DP) steels were investigated, focusing on the influence of the phosphorus (P) content. An increased P content of 0.02wt.% caused little TE and enhancement of HE susceptibility in DP steels. Hydrogen had little...

An innovative multistage heat treatment, that combines Bainitization and Quenching & Partitioning processes (BQ&P) can be applied to obtain multiphase microstructure comprising carbide-free nanobainite, ultra-fine martensite and retained austenite. In this study, a carburized medium-carbon...

A microstructure within the gradient structure was successfully prepared using the ultrasonic impact treatment (UIT), achieving good strength to toughness synergy. Specifically, the diffraction peak on the surface of the gradient microstructure had a certain broadening effect. Furthermore, the...