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Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003824
EISBN: 978-1-62708-183-2
... Abstract For chemical processing, niobium resists a wide variety of corrosive environments, including mineral acids, many organic acids, liquid metals, and most salt solutions. This article focuses on the mechanisms of corrosion resistance of niobium alloys in these environments. The niobium...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006244
EISBN: 978-1-62708-163-4
... Abstract This article is a compilation of ternary alloy phase diagrams for which niobium (Nb) is the first-named element in the ternary system. The diagrams are presented with element compositions in weight percent. The article includes 2 phase diagrams: Nb-Ti-W isothermal section at 600 °C...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006187
EISBN: 978-1-62708-163-4
... Abstract This article is a compilation of binary alloy phase diagrams for which niobium (Nb) is the first named element in the binary pair. The diagrams are presented with element compositions in weight percent. The atomic percent compositions are given in a secondary scale. For each binary...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001110
EISBN: 978-1-62708-162-7
... Abstract Niobium-titanium alloys (NbTi) became the superconductors of choice in the early 1960s, providing a viable alternative to the A-15 compounds and less ductile alloys of niobium-zirconium. This can be attributed to the relative ease of fabrication, better electrical properties...
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Published: 01 January 1990
Fig. 12 Effect of niobium carbide on yield strength for various sizes of niobium carbide particles More
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Published: 01 January 2005
Fig. 6 Solubility of oxygen in niobium and tantalum. Curve A, niobium; curve B, tantalum. Source: Ref 18 More
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Published: 01 January 2005
Fig. 7 Solubility of nitrogen in niobium and tantalum. Curve A, niobium; curve B, tantalum. Source: Ref 18 More
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Published: 01 January 1986
Fig. 29 Topographs showing equi-inclination contours in a niobium crystal containing β-niobium hydride precipitates. Plate 0 is a multiple exposure. Plates 1 to 16 are single exposures taken 140 arc minutes of rotation about the [110] direction. OM is an optical micrograph showing hydride More
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Published: 01 January 1986
Fig. 7 Schulz x-ray topograph of a niobium single crystal revealing its intrinsic microstructure. 8×. Source: Ref 13 More
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Published: 01 January 1994
Fig. 9 High-resolution Rutherford backscattering spectroscopy of a 10.4 nm niobium layer on sapphire (calculated solid lines) that was oxidized in air (shoulder in the experimental points distribution). 1 MeV 4 He + . Source: Ref 34 More
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Published: 01 June 2016
Fig. 8 Titanium-niobium phase diagram. This beta-stabilized system is typical of the beta-isomorphous type. Both titanium and niobium have body-centered cubic crystal structures. Source: Ref 1 More
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Published: 01 January 1990
Fig. 6 Particle shape of niobium powder made by electron beam melting, hydriding, crushing, and degassing. 250× More
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Published: 01 January 1990
Fig. 7 Effect of temperature on the mechanical properties of three niobium alloys coated with Si-20Cr-20Fe silicide coating. (a) Tensile yield strength and specific strength. (b) Stress. Specific strength is the ratio of tensile yield strength ( F ty ) (in lb/in. 2 ) to mass density (ρ More
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Published: 01 January 1990
Fig. 8 Cyclic creep in three niobium alloys coated with Si-20Cr-20Fe silicide coating More
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Published: 01 January 1990
Fig. 9 Effect of temperature on the elastic properties of three niobium alloys coated with Si-20Cr-20Fe silicide coating. (a)Modulus of elasticity. (b)Specific modulus. Specific modulus is the ratio of the modulus of elasticity ( E ) (in lb/in. 2 ) to mass density (ρ) (in lb/in. 3 ); it has More
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Published: 01 January 1990
Fig. 2 Precipitation and dissolution characteristics of vanadium and niobium carbides in austenite More
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Published: 31 October 2011
Fig. 28 Example of microsegregation in a weld of a niobium-bearing nickel-base superalloy. (a) Micrograph showing position of composition trace. (b) Corresponding electron probe microanalysis results showing niobium microsegregation. Source: Ref 33 , 42 More
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Published: 01 January 2005
Fig. 1 Potential-pH equilibrium diagram for niobium-water at 25 °C (75 °F) More
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Published: 01 January 2005
Fig. 3 Isocorrosion curves of niobium alloys in hydrochloric acid, 0.05 mm/yr (2 mils/yr) lines More
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Published: 01 January 2005
Fig. 4 Potentiodynamic scan results of niobium and Nb-1Zr in 20% HCl at 100 °C (212 °F) with ferric ion. Saturated calomel electrode with scan rate of 0.3 mV/s More