The impact of moisture on flowability and spreadability is discussed. More notably we also present research the built nickel-base material. One lot a newly opened Hastelloy X (HX) L?PBF powder was split into two equal batches. batch moisturized using programmable climate chamber, other untreated. We bars with both batches for mechanical testing, in an EOS M100, cold build plate. content batches...

Abstract: Solute segregation significantly affects material propert ies and is an essential issue in powder-bed fusion（PBF）type additional manufacturing（AM）of nickel-based superalloys. In the present study, we have investigated effects of solidification conditions temperature gradients rates on behavior Hastelloy-X Ni-based superalloy using multi- phase field（MPF）simulation. To evaluate liquati...

The electrochemical behavior and passive film properties of Hastelloy C22 alloy, laser-cladding coating, Ti–6Al–4V alloy in sulfuric acid dew-point corrosion environment were investigated through a combination measurements surface analyses. coating exhibited similar passivation repassivation without pitting corrosion, resulting from with bilayer structure consisting Cr2O3-dominated compact inne...

Iron chalcogenides, binary FeSe, FeTe and ternary FeTe x Se1-x , FeTe x S1-x and FeTe:O x , are the simplest compounds amongst the recently discovered iron-based superconductors. Thin films of iron chalcogenides present many attractive features that are covered in this review, such as: (i) easy fabrication and epitaxial growth on common single-crystal substrates; (ii) strong enhancement of supe...

The present paper describes a simple, selective and sensitive kinetic method for the determination of trace amounts of molybdenum(VI) based on its inhibitory effect on the reaction oxidation of 4-hydroxycoumarine by KMnO(4) in the presence of hydrochloric acid, at pH 1.75 at 25 degrees C. The rate of the indicator reaction was followed spectrophotometrically by measuring the decrease in the abs...

A multi-aperture shower design is reported to improve the transverse uniformity of GdYBCO superconducting films on the template of sputtered-LaMnO₃/epitaxial-MgO/IBAD-MgO/solution deposition planarization (SDP)-Y₂O₃-buffered Hastelloy tapes. The GdYBCO films were prepared by the metal organic chemical vapor deposition (MOCVD) process. The transverse uniformities of structure, morphology, thickn...

Palladium-copper alloys continue to be of interest for hydrogen membrane applications because of their high catalytic activity for hydrogen dissociation, high hydrogen permeability, robustness, and degradation resistance in the presence of sulfur-containing compounds. This sulfur tolerance makes these alloys attractive for membrane applications where sulfur compounds are likely to be present, s...

The decomposition of 5-benzhydryl-1H-tetrazole in an N-methyl-2-pyrrolidone/acetic acid/water mixture was investigated under a variety of high-temperature reaction conditions. Employing a sealed Pyrex glass vial and batch microwave conditions at 240 °C, the tetrazole is comparatively stable and complete decomposition to diphenylmethane requires more than 8 h. Similar kinetic data were obtained ...

The effect of Ni-based fillers on corrosion resistance welded super austenitic stainless steel (SASS) was examined. use for gas tungsten arc SASS leads to the formation fine Cr-Mo enriched phase in its weld unmixed zone, which makes it more susceptible localized corrosion. metallographic observations showed that pits were initiated around precipitated and they propagated along base metal. degre...