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niobium alloys

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030148
EISBN: 978-1-62708-282-2
..., copper, titanium, zirconium, vanadium, niobium, and tantalum alloys. hydrogen damage iron-base alloys nickel alloys aluminum alloys copper alloys titanium alloys zirconium alloys vanadium alloys niobium alloys tantalum alloys HYDROGEN DAMAGE is a form of environmentally assisted...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170308
EISBN: 978-1-62708-297-6
... Abstract This article discusses the role of alloying in the production and use of common refractory metals, including molybdenum, tungsten, niobium, tantalum, and rhenium. It provides an overview of each metal and its alloys, describing the compositions, properties, and processing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240371
EISBN: 978-1-62708-251-8
... Abstract Alloy steels are alloys of iron with the addition of carbon and one or more of the following elements: manganese, chromium, nickel, molybdenum, niobium, titanium, tungsten, cobalt, copper, vanadium, silicon, aluminum, and boron. Alloy steels exhibit superior mechanical properties...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980567
EISBN: 978-1-62708-342-3
... alloys, molybdenum, niobium, tantalum, zirconium alloys, titanium, and titanium alloys. chemical composition extrusion ferrous alloys nonferrous alloys This appendix provides approximate compositions for metals and alloys in commonly extruded alloy families: Table 1 , aluminum alloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090317
EISBN: 978-1-62708-266-2
... elements from groups 4A through 6A, particularly titanium, niobium, molybdenum, and zirconium. These alloying elements must be dissolved in solid solution for maximum benefit to corrosion resistance and/or strength. All of these elements are extremely soluble in the high-temperature γ phase (T > 771 °C...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170495
EISBN: 978-1-62708-297-6
... economy of alloy Controlled thermal expansion addition Rare earth elements lanthanum and yttrium Improves adherence of oxide layer Copper Improves resistance to reducing acids and salts (Ni-Cu alloys) Improves resistance to sulfuric acid Niobium Improves high-temperature strength...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030176
EISBN: 978-1-62708-282-2
... measures for sensitization include alloying-element control procedures such as lowering the carbon content to 0.03% maximum, as in 304L (S30403), or stabilizing with titanium or niobium plus tantalum alloying additions ( Fig. 1 ), or metallurgical treatments such as postweld annealing to re-diffuse...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310147
EISBN: 978-1-62708-286-0
..., and C for columbium (niobium). The heat-resisting, “H,” alloys have generally only a second letter designating relative nickel level on the same scale as “C” alloys but going past stainless steels all the way to nickel-based alloys. The inclusion of a number after the first two letters indicates the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170417
EISBN: 978-1-62708-297-6
... significantly. It is for optimized K Ic and K ISCC values that extra-low-interstitial (ELI) grades of certain α-β alloys, such as ELI Ti-6A1-4V, are often specified for critical saltwater applications. On the other hand, most isomorphous β-phase stabilizer additions, such as molybdenum, vanadium, niobium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090303
EISBN: 978-1-62708-266-2
... SCC resistances of zirconium alloys. In fact, alloy composition plays a minor role in the SCC of zirconium alloys compared with other alloy systems. Nevertheless, the effect of alloy composition on zirconium SCC is not straightforward. As reported in Ref 11.7 , the presence of niobium in Zr 705...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170540
EISBN: 978-1-62708-297-6
... carbide formation. Other alloying elements contributing to the solid-solution and/or carbide formation are tantalum, niobium, zirconium, vanadium, and titanium. Yttrium is also added to some alloys for improved oxidation resistance. Carbon in corrosion-resistant alloys is minimized to avoid carbide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480113
EISBN: 978-1-62708-318-8
... precipitate from high-aluminum-containing alpha phase when alloys are exposed for long times between 480 and 705 °C (900 and 1300 °F). This phase results in the loss of toughness and ductility. Additions of molybdenum, niobium, tantalum, and vanadium stabilize a small amount of beta phase, producing stable...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170614
EISBN: 978-1-62708-297-6
... Traction control Alnicos are a family of low-cost iron-base alloys containing aluminum, nickel, and cobalt. Various other elements are often added to Alnicos. For example, to lessen the deleterious effect of carbon, carbide stabilizers such as titanium or niobium may be added. Titanium and...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170587
EISBN: 978-1-62708-297-6
... (a) Any value in this range can be obtained by varying the heat treatment. There is a family of Fe-Ni-Co alloys strengthened by the addition of niobium and titanium that show the strength of precipitation-hardened superalloys while maintaining low coefficients of thermal expansion typical of...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550223
EISBN: 978-1-62708-307-2
... beta alloys can be formed at room temperature. The beta alloys can be STA to higher strength levels than the alpha-beta alloys while still retaining sufficient toughness. The biggest drawbacks of the beta alloys are increased densities due to alloying elements such as molybdenum, vanadium, and niobium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480075
EISBN: 978-1-62708-318-8
...-niobium (Ti-Nb), and titanium-tantalum (Ti-Ta) ( Ref 4.1 ). The following examples illustrate several characteristics of this diagram that are important for understanding the heat treatment of titanium alloys. Fig. 4.1 Partial beta-isomorphous phase diagram. Raising the temperature of alloy A from...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480141
EISBN: 978-1-62708-318-8
... isomorphous type are vanadium, molybdenum, tantalum, and niobium. This system differs entirely from the alpha-stabilized system in that alloying additions lower the beta-transformation temperature rather than increase it as in the alpha system. This means that processing and annealing temperatures are...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090271
EISBN: 978-1-62708-266-2
..., or bcc structure) are stabilized at ambient temperature. Beta-stabilizing elements commonly include vanadium, molybdenum, chromium, manganese, iron, niobium, and tantalum. Stabilization of a small proportion of β phase produces near-α alloys, exhibiting little or no heat treatability. As β alloying...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
..., silicon, niobium, and/or other elements are added to the steel to remove the dissolved oxygen. These oxides are then removed in the slag. The choice of oxidizing materials determines if the steel will be coarse grain (ASTM 1–5 grain size) or fine grain (ASTM 6 or higher). Generally, fine grain is...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090135
EISBN: 978-1-62708-266-2
... Abstract Nickel and nickel-base alloys are specified for many applications, such as oil and gas production, power generation, and chemical processing, because of their resistance to stress-corrosion cracking (SCC). Under certain conditions, however, SCC can be a concern. This chapter describes...