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niobium alloys

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Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006255
EISBN: 978-1-62708-169-6
... Abstract This article briefly discusses the annealing practices for refractory metals such as tungsten, molybdenum, niobium, tantalum, and rhenium and their alloys. It also presents the applications and properties of these metals and their alloys. annealing microstructure molybdenum...
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. These environments include 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...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003994
EISBN: 978-1-62708-185-6
... Abstract This article focuses on the forging characteristics of different types of refractory metals and alloys, namely, niobium and niobium alloys, molybdenum and molybdenum alloys, tantalum and tantalum alloys, and tungsten and tungsten alloys. forging molybdenum molybdenum alloys...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003155
EISBN: 978-1-62708-199-3
..., current density, and magnetic field boundary separating superconducting and normal conducting states. These data, which are for a niobium-titanium superconducting alloy, are based on measurements at 4.2 K. On the basis of magnetic response, superconducting materials can be divided into two...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003151
EISBN: 978-1-62708-199-3
... Abstract The refractory metals include niobium, tantalum, molybdenum, tungsten, and rhenium. They are readily degraded by oxidizing environments at moderately low temperatures. Protective coating systems have been developed, mostly for niobium alloys, to permit their use in high-temperature...
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: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001313
EISBN: 978-1-62708-170-2
... that has restricted the applicability of the metals to low-temperature or nonoxidizing high-temperature environments. Protective coating systems have been developed, mostly for niobium alloys, to permit their use in high-temperature oxidizing aerospace applications. Refractory metals at one time were...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003203
EISBN: 978-1-62708-199-3
... tempering of precipitation-hardening stainless steels. The article also lists general recommendations for the annealing temperatures of tantalum, niobium, molybdenum, tungsten, and their alloys. annealing heat treating quenching refractory metals solution treating stainless steels stress...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003828
EISBN: 978-1-62708-183-2
... elements that stabilize the γ phase such as titanium, niobium, molybdenum, zirconium, and vanadium, and their properties are summarized below. Pure uranium has also been used in reactors by roll cladding with aluminum ( Ref 2 ). The corrosion resistance of uranium-aluminum alloys was therefore studied...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003180
EISBN: 978-1-62708-199-3
... for the press-brake forming of refractory metal sheet 0.5 to 1.3 mm (0.020 to 0.050 in.) thick Metal or alloy Forming temperature, °C (°F) Minimum bend radius (a) Springback, degrees Test data Preferred Niobium alloys (annealed) C-103 (Nb-10Hf-1Ti), C-129Y (Nb-10Hf-10W) Room...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003995
EISBN: 978-1-62708-185-6
... vanadium and niobium. This means of grain refinement in steel was greatly accelerated by the discovery of an extensive body of niobium (formerly known as columbium) bearing ore in Brazil in the late 1950s. Hitherto, niobium had been used as an alloying element in specialty steels, but had been too...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003825
EISBN: 978-1-62708-183-2
... platinized niobium or platinized tantalum anodes is the valvelike nature of the oxide film on the niobium or tantalum substrates. Niobium in such anodes operates to a breakdown voltage of 40 to 50 V, but tantalum will operate up to 200 V. For both materials, the resistivity of the alloys used is...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003142
EISBN: 978-1-62708-199-3
... 6% Al generally are susceptible to stress corrosion. Additions of tin, manganese, and cobalt are detrimental, whereas zirconium appears to be neutral. Beta stabilizers such as molybdenum, vanadium, and niobium are beneficial. Susceptibility of titanium alloys to SCC also can be affected by heat...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006253
EISBN: 978-1-62708-169-6
... properties that can be classified as alpha (α) alloys, beta (β) alloys, or alpha-beta (α + β) alloys. Titanium also is part of a family of metals known as the reactive metals. All of these reactive metals, notably titanium, zirconium, niobium, and tantalum, benefit from highly protective oxide films. As a...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005444
EISBN: 978-1-62708-196-2
..., 0.010 Mg) 0.25 Zn-Cu-Ti alloy (0.8 Cu, 0.15 Ti) 0.25 Pure metals Beryllium 0.35 Cadmium 0.22 Chromium 0.16 Cobalt 0.165 Germanium 0.14 Gold 0.71 Indium 0.057 Iridium 0.14 Lithium 0.17 Molybdenum 0.34 Niobium 0.13 Palladium 0.168 Platinum...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003247
EISBN: 978-1-62708-199-3
... among the refractory metals (tungsten, molybdenum, niobium, and tantalum) and their alloys necessitate the use of a variety of techniques for preparation of metallographic specimens. A particular product form, such as wire, may also require special preparation techniques. PREPARATION OF...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003993
EISBN: 978-1-62708-185-6
... heat treatment of steels. Alloying additions lead to the precipitation of various phases, including γ′[Ni 3 (A1, Ti)], γ″, and various carbides such as MC (M=titanium, niobium, and so on), M 6 C (M=molybdenum and/or tungsten), or M 23 C 6 (M=chromium). In general, the primary strength of heat...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004001
EISBN: 978-1-62708-185-6
... as 0.1 to 6 at.% of secondary alloying elements such as niobium, chromium, manganese, vanadium, tantalum, and tungsten. In the sections that follow, the processing of near-gamma titanium aluminide alloys via wrought, ingot-metallurgy and powder-metallurgy routes is described. All alloy compositions...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003826
EISBN: 978-1-62708-183-2
... carbide former and provides improved grain-boundary ductility and increased oxidation resistance ( Ref 18 ). Hafnium is also used in several niobium- and tantalum-base alloys to increase strength at high temperature. The niobium-base alloys are C-103 (Nb-10Hf-1Ti) and C-129Y (Nb-10Hf-0.07Y). These...