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properties of refractory metals

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240583
EISBN: 978-1-62708-251-8
... the composition, properties, fabrication procedures, advantages and disadvantages, and applications of these refractory metals and their alloys. A comparison of some of the properties of the refractory metals with those of iron, copper, and aluminum is given in a table. The article concludes with a brief section...
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 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 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060315
EISBN: 978-1-62708-261-7
.... Niobium and tantalum have high melting points and are also classified as refractory metals. Hafnium and zirconium are similar in terms of chemical properties, such as resistance to corrosion in nuclear environments and high strength. Nonetheless, there are two significant differences: Hafnium...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000059
EISBN: 978-1-62708-313-3
... J.K. , The Effects of Replacing the Refractory Elements Tungsten, Niobium and Tantalum with Molybdenum in Nickel-Base Superalloys on Microstructural, Microchemistry and Mechanical Properties , Metall. Trans. A , Vol 17 ( No. 4 ), 1986 , p 651 – 661 10.1007/BF02643984 29. Zhang J...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170596
EISBN: 978-1-62708-297-6
... of silver. Nominal compositions and properties of the principal silver metals used for electrical contacts are given in Table 1 . Fig. 1 Hardness and electrical resistivity versus alloy content for silver alloy contacts Nominal compositions and properties of silver metals used for electrical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230131
EISBN: 978-1-62708-298-3
... Interactions of iron, aluminum, and beryllium. Source: Walsh et al. 1971 The refractory-metal beryllides of compositions MBe 13 , MBe 12 , and M 2 Be 17 have unique combinations of properties that include high-temperature strength, good thermal conductivity, excellent oxidation resistance, and low...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140047
EISBN: 978-1-62708-335-5
..., refractory/metal reactions Nonmetallic in situ MgO, Al 2 O 3 films, clusters, and disperoids; MgAl 2 O 4 films and clusters Melting, alloying: metal transfer turbulence Homogeneous halide salts MgCl 2 -NaCl-CaCl 2 , etc. Poor separation of fluxing reaction products Particle/salt MgCl 2 -NaCl...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740047
EISBN: 978-1-62708-308-9
... that of the alloy, such as a refractory aggregate (e.g., silica sand) or a high-temperature alloy. There are a wide variety of mold making methods used in casting, depending on the alloy to be poured, the number of castings to be made, and the dimensional and property requirements. The sand casting process...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280041
EISBN: 978-1-62708-267-9
... generated significant amounts of slag from the products of deoxidation, desulfurization, and the deterioration of the refractory crucible lining. The heat is poured so as to decant the molten metal from under the slag. Generally, the refractory pouring system used to conduct the molten metal to the molds...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740001
EISBN: 978-1-62708-308-9
.... Higgins R.A. , Engineering Metallurgy—Applied Physical Metallurgy , 6th ed. , Arnold , 1993 3. Mishra B. , Steel Making Practices and Their Influence on Properties , Metals Handbook Desk Edition , 2nd ed. , ASM International , 1998 10.31399/asm.hb.mhde2.a0003091 4. Imrie...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460173
EISBN: 978-1-62708-285-3
.... and Dunkley J.J. , Ed., Atomization of Melts: For Powder Production and Spray Deposition , Clarendon Press , 1994 6.3 Ashgriz N. , Ed., Handbook of Atomization and Sprays , Springer , 2011 6.4 “ Ceramic-Free Metal Powder Production for Reactive and Refractory Metals ,” ALD Vacuum...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730139
EISBN: 978-1-62708-283-9
... Federation , Princeton, NJ , 1984 13.4 http://en.wikipedia.org/wiki/Integrated_circuit , accessed 2007 Metals usually are cast into molds of sand, another refractory material, or another metal. Steel and iron are cast into sand or refractory molds. Gold, silver, and refractory metals are cast...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170495
EISBN: 978-1-62708-297-6
... of strength and/or ductility in service. Primary and Secondary Carbides Chromium-Rich and Refractory Metal Carbides The occurrence of intermetallic phases in nickel-base alloys carries both good and bad connotations. On the positive side, the nickel-base system has been the most widely...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000001
EISBN: 978-1-62708-313-3
... unsuitable for most structural applications. Refractory metal alloys retain their mechanical properties at higher temperature because of their high melting points, but they have poor oxidation resistance. The combination of environmental resistance and superior mechanical properties at high temperatures sets...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260119
EISBN: 978-1-62708-336-2
... metal flows directly from the furnace launder via a large distribution pan made with special asbestos-free refractory material into the water-cooled molds as shown in Fig. 11 . In the distribution, when the equilibrium condition is reached, there is a minimum fluctuation in the metal level...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310201
EISBN: 978-1-62708-286-0
.... The use of filler metal with higher corrosion resistance does not totally offset the influence of welding on corrosion resistance because some of the base metal melts and is not altered in composition by the filler metal. This is called the unmixed zone . It is essentially a zone with properties equal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000111
EISBN: 978-1-62708-313-3
... and Protective Coatings , Koul A.K. , Ed., National Research Council of Canada , Ottawa , 1994 , p 34 – 53 2. Praveen K.V.U. , Sastry G.V.S. , and Singh V. , Work Hardening Behavior of the Ni-Fe Based Superalloy IN718 , Metall. Mater. Trans. A , Vol 39 , 2008 , p 65 – 78...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120025
EISBN: 978-1-62708-269-3
... produced is a function of the purity of the starting materials. Control of raw materials is extremely important in producing titanium and its alloys because there are many elements of which even small amounts can produce major, and at times undesirable, effects on the properties of these metals in finished...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730081
EISBN: 978-1-62708-283-9
... temperatures, many are used for refractories (materials having a high heat resistance) such as crucibles and furnace linings. Oxidation at high temperatures is not a problem with refractory oxides as it is with refractory metals. Magnesia, alumina, and silica are used as refractories. (Oxides are named...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130151
EISBN: 978-1-62708-284-6
... the gaseous atmosphere, furnace refractory, foundry ladle, molds, and core materials are important factors from a technological and metallurgical point of view and are responsible for desirable or undesirable changes in the chemical, physical, and mechanical properties of the metallic materials...