... and under pH monitoring in the solution bulk throughout all assays. The methodology proposed was considered adequate because, from experimental data, a final result compatible with the classic diagram for the Nb-H₂O system and the excellent corrosion resistance of niobium in aqueous media were...

... ) 1 / n NACE International 2008 aluminum elevated temperature niobium oxidation kinetics Ti-Si eutectic alloy Ti-Si eutectic alloy has excellent casting properties, such as a low melting point (1,350°C at the eutectic composition), narrow crystallization range, and good...

... to evaluate, in a screening manner, their intergranular stress corrosion cracking (IGSCC) susceptibility in a simulated boiling water reactor (BWR) environment. It was confirmed that when the stabilization parameter, N ¯ , consisting of niobium, titanium, and carbon contents of each weld metal...

... (heal) the weld metal, depending mainly on the length of PWHT. Moreover, low-temperature aging (LTA) at 500°C for 24 h after PWHT, simulating the so-called low-temperature sensitization (LTS), can significantly influence the sensitization behavior. In the present study, the effect of niobium addition...

...P.M. Natishan; J. Jones-Meehan; G.I. Loeb; B.J. Little; R. Ray; M. Beard Microbial colonization of metals (zirconium, chromium, niobium, tantalum, molybdenum, tungsten, and type 4340 steel [UNS G43400]) and susceptibility of these metals to microbiologically influenced corrosion by sulfate-reducing...

... 444 SS demonstrated that dual stabilization with low individual concentrations of titanium and niobium provided optimum corrosion resistance. This apparent synergism of niobium and titanium was independent of the surface of the welded materials, which were examined in the as-received, pickled...

... corrosion energy-dispersive spectroscopy hydrochloric acid hydrolysis niobium passivation repassivation titanium x-ray diffraction zirconium Ti-13% Nb-13% Zr (Ti-13-13) a near beta titanium alloy, has been developed specifically for use in biomedical applications. ^1-3 Titanium...

... International 1992 aluminides intermetallic alloys niobium oxidation titanium The Ti-Al-Nb ternary system has recently received attention as a potential intermetallic structural materials system because an addition of Nb improves the properties of Ti₃Al and TiAl compounds. Likewise...

...A. Robin; M.E. de Almeida; C.A. Nunes The corrosion behavior of niobium and Nb–25 wt% Ta alloy in H₂ SO₄ solutions has been studied. Using mass-loss techniques, the influences of H₂SO₄ concentration, temperature, and exposure time have been examined...

...R.J. Walter; G.G. Beetle; W.T. Chandler The results of an experimental investigation of the effect of water vapor/hydrogen environments on the mechanical properties of niobium, B-66 niobium alloy, tantalum, and Ta-10W alloy are presented. Tensile tests were conducted on specimens of these materials...