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Chemistry, Physical
Sangwon Cho et al.
Summary: This study investigated the optimal pickling conditions for improving the phosphatability of AHSS, finding that by adding NH4HF2 to remove SiO2, using high concentrations of HNO3 significantly improved phosphatability, and HNO3-based pickling resulted in finer phosphate crystals and higher corrosion resistance compared to HCl-based pickling.
Article
Chemistry, Physical
Ivana Parchovianska et al.
Summary: The polysilazane-based double layer composite coatings showed significant mass loss and leaching of elements during quasi-dynamic corrosion tests under hydrothermal conditions. Analysis revealed the presence of various main components in the corrosion medium and different elements and crystal phases in the precipitates formed on the coating surface.
Article
Biochemistry & Molecular Biology
Milan Parchoviansky et al.
Summary: This study focuses on the oxidation behavior of ferritic stainless-steel grade AISI 441 and polymer-derived ceramic (PDC) protective coatings, showing that steel coated with specific coatings exhibits good oxidation resistance at high temperatures and in atmospheres containing water vapor, with strong adhesion properties.
Article
Chemistry, Physical
Wenquan Wang et al.
Summary: A Mo coating was fabricated on H13 steel by electro spark deposition (ESD) process in this study, offering high melting point, good wear and corrosion resistance properties that significantly enhance the service life of H13 steel.