This study assessed surface treatment techniques applicable to welded joints of stainless steel pipes and vessels for a hydrogen-permeation barrier. Specifically investigated was electrolytic polishing using electrolyte compositions consisting sulfuric acid, phosphoric methane-sulfonic acid promote uniform passive film formation on type 304 surface. also examined oxidation combination chemical ...

" Scire est nescire, nisi id me Scire alius sciret." october, 1923. A large body of evidence has accumulated in support of the electrolytic dissociation theory originally put forward by Arrhenius in 1887, and at the present time the conception of the reaction of a solution, whether acid, alkaline or neutral, is to be regarded either from the point of view of the absolute quantity of neutralisab...

Systematic studies have been performed in order to achieve very high concentration of Hydrogen (or Deuterium) into a Palladium lattice. In a very diluted acid electrolytic cell a thin Pd cathode wire (100 m) and tick anode Pt wires (0.5 mm) has been used as electrodes in a coaxial geometry. Normalised resistance (R/Ro) of Pd-H wire system has been measured on-line and used as reference of H/Pd...

Hundreds of electrolytic loading tests of thin Pd wires in different experimental conditions have been performed in order to find out the best procedures for stable, high hydrogen overloading into the palladium lattice. In a very dilute acid solution thin Pd cathodes (50 or 100m in diameter) and thick Pt anodes (0.5 mm in diameter) were used in a parallel or coaxial geometry. Normalised resist...

Hydrogen embrittlement affected by three types of plating (low-P and high-P electroless Ni-P electrolytic Zn-platin) was investigated means slow-strain-rate three-point bending test on aluminum alloys (2017-T3, 6061-T6 7075-T651). generated the zinc absorbed alloy substrates, trap sites in substrates for hydrogen differed between plating. able to be evaluated tests plated alloys. Zinc did not c...