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tantalum 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 2015
DOI: 10.31399/asm.tb.cpi2.t55030112
EISBN: 978-1-62708-282-2
... Abstract This chapter discusses some of the metallurgical factors that affect corrosion of weldments and describes a few considerations for selected nonferrous alloy systems: aluminum, titanium, tantalum, and nickel. weld corrosion weldments aluminum titanium tantalum nickel IT...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820143
EISBN: 978-1-62708-339-3
... Abstract The nonferrous alloys described in this chapter include aluminum and aluminum alloys, copper and copper alloys, titanium and titanium alloys, zirconium and zirconium alloys, and tantalum and tantalum alloys. Some of the factors that affect the corrosion performance of welded nonferrous...
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...
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 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170540
EISBN: 978-1-62708-297-6
... of development to increase their high-temperature capability. The use of tungsten (or tantalum) rather than molybdenum, moderate nickel and chromium contents, lower carbon contents, and rare-earth additions typify cobalt-base high-temperature alloys of today. Table 4 summarizes some of the effects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170417
EISBN: 978-1-62708-297-6
..., and tantalum, tend to reduce or eliminate SCC susceptibility in aqueous halide solutions. The β-eutectoid additions, such as iron, manganese, chromium, silicon, and copper, however, tend to degrade SCC resistance. Increasing hydrogen content may also reduce SCC resistance in α-β alloys. Fig. 4...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170495
EISBN: 978-1-62708-297-6
... between nickel and the alloying element, and therefore the ability of the solute to interfere with dislocation motion. Tungsten, molybdenum, niobium, tantalum, and aluminum, when aluminum is left in solution, are strong solution hardeners, with tungsten, niobium, tantalum, and molybdenum also being...
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 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: 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 July 2009
DOI: 10.31399/asm.tb.bcp.t52230199
EISBN: 978-1-62708-298-3
... inclusions at 500× Kaufmann et al. [1950] Silicon 1 No observable inclusions at 500× Kaufmann et al. [1950] Silver 10 Mostly single phase. Small amount of white compound Kaufmann et al. [1950] Sulfur 1 No observable inclusions at 500× Kaufmann et al. [1950] Tantalum 1 Tan...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120131
EISBN: 978-1-62708-269-3
... the following: vanadium, chromium, manganese, niobium, tantalum, tungsten, or molybdenum. The orthorhombics typically contain 21 to 25 at.% Al and 25 to 30 at.% Nb. Aluminides have low ductility at ambient temperatures, although the elevated-temperature ductility generally is satisfactory. For...
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
... subdivided into beta isomorphous elements, which have a high solubility in titanium, and beta eutectoid elements, which have only limited solubility and tend to form intermetallic compounds. The beta isomorphous elements are molybdenum, vanadium, niobium, and tantalum, while beta eutectoid elements include...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030074
EISBN: 978-1-62708-282-2
... alloys (commonly known as B-type alloys) were specifically developed to withstand reducing HCl at all concentrations and temperatures. Besides expensive materials such as tantalum, nickel-molybdenum alloys are the best alloys for hot hydrochloric acid ( Ref 3 ). Nickel-molybdenum alloys are also used in...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
... Abstract This chapter discusses the various methods used to join titanium alloy assemblies, focusing on welding processes and procedures. It explains how welding alters the structure and properties of titanium and how it is influenced by composition, surface qualities, and other factors. It...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060013
EISBN: 978-1-62708-261-7
... metals have very high melting points. The refractory metals include niobium (also known as columbium), tantalum, molybdenum, tungsten, and rhenium. Melting points of various metals are shown in Fig. 2.36 . Fig. 2.36 Melting points of various metals. Unlike pure metals, alloys do not...