This study presents research on the effect of Portland cement (PC) replacement with metakaolin mechanical behavior flax textile-reinforced cementitious matrices (TRCM). The composition and in-situ fibres was determined using X-ray diffraction thermogravimetric analysis, while reinforcement efficiency textile TRCMs investigated by three-point bending tests finite element analysis. High amounts P...

This paper focused on determining the increased tendency of cracking after die forging process high nickel and chromium steel. The increase in carbon content austenitic nickel–chromium steel promoted valve forgings to intergranular crack head. Attention was paid issues related chemical composition material be considered when hot forming components. Optical scanning electron microscopies were us...

Abstract Microbiological methanation is planned in an underground natural gas reservoir. For this purpose, hydrogen stored, which can lead to embrittlement of steels. To simulate these field conditions, autoclave tests were performed clarify the amount absorbed and test whether content leads failure Constant load immersion with subsequent analyses performed. Tests under constant have shown that...

The effects of the electrogalvanizing conditions (a combination plating current and time) on hydrogen infusion, embrittlement, corrosion-induced embrittlement (HE) behaviors ultra-high strength steel were examined. A range experimental analytical methods, including electrochemical impedance spectroscopy, permeation, polarization, slow strain rate test, employed. results showed that applied cath...

Hydrogen-related defects in the metastable austenitic stainless steel 304 were analyzed by positron annihilation lifetime spectroscopy to determine factors responsible for hydrogen embrittlement. Hydrogen was introduced cathodic electrolysis method ~10-µm topmost layer which then etched electrochemical polishing investigate formation of hydrogen-induced bulk. Although embrittlement did not occu...