1-20 of 249 Search Results for

refractory elements

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
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
... Abstract This chapter discusses the typical compositional ranges of superalloys, the role of major base metals (iron, cobalt, and nickel), and the effects of common alloying additions. It describes how chromium, aluminum, and titanium as well as refractory elements, grain-boundary elements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000111
EISBN: 978-1-62708-313-3
... of the refractory elements molybdenum, tungsten, and rhenium are incompatible, because the combination promotes the formation of topologically close-packed phases. Corrosion protection also requires that carbon levels be minimized, because carbon will “sensitize” superalloys in a similar way to stainless steel...
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
... to thermal shock and wear, and higher creep resistance and strength than the other refractory elements. As the temperature increases from room temperature to 725 °C (1340 °F), the modulus decreases only approximately 20%. In the annealed condition, it has a room-temperature tensile strength of 1170 MPa (170...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200187
EISBN: 978-1-62708-354-6
..., and the recovery of elements from slag. It then presents an overview of argon-oxygen-decarburization (AOD) refining and types of ladles. The chapter describes chemical analysis that is performed using either optical emission or x-ray spectrographs. chemical analysis melting melting furnaces refractories...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170308
EISBN: 978-1-62708-297-6
... temperature (that is, where cleavage or the intergranular fracture mode prevails) these metals behave in a brittle, glasslike manner. The bcc crystal structure refractory alloys show DBTTs at and above room temperature. Moreover, ductility is sensitive to the presence of impurity elements segregated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170495
EISBN: 978-1-62708-297-6
..., tungsten, or other refractory elements, the level of silicon must be carefully controlled because it can stabilize carbides and harmful intermetallic phases. On the other hand, the use of silicon as a major alloying element has been found to improve greatly the resistance of nickel to hot, concentrated H 2...
Image
Published: 01 December 2003
Fig. 4 Fluidized-bed furnace with internal heating by electrical resistance elements: (1) pivoting cover in two parts; (2) insulation; (3) refractory material; (4) fluidized bed; (5) heating elements; (6) intake for fluidizing gas; (7) parts to be treated. Source: Ref 1 More
Image
Published: 01 December 2003
Fig. 3 External resistance heating. (a) Fluidized-bed furnace with external heating by electrical resistance elements: (1) pivoting cover in two parts; (2) insulation; (3) refractory material; (4) fluidized bed; (5) resistance elements; (6) intake for fluidized gas (air or nitrogen); (7) parts More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2022
DOI: 10.31399/asm.tb.mbheaktmse.t56030021
EISBN: 978-1-62708-418-5
... AlNbTiVZrx (x= 0–1.5) High-Entropy Alloys , Mater Sci Eng: A , Vol 704 , 2017 , p 82 – 90 10.1016/j.msea.2017.08.019 10. Senkov O. , Senkova S. , Miracle D. , and Woodward C. , Mechanical Properties of Low-Density, Refractory Multi-Principal Element Alloys of the Cr–Nb–Ti–V...
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
... Induction Melting Process Description The charge generally consists of three portions: a virgin portion, which consists of material that has never been vacuum melted; a refractory portion, which consists of those virgin elements that are strong oxide formers and have the tendency to increase...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2022
DOI: 10.31399/asm.tb.mbheaktmse.9781627084185
EISBN: 978-1-62708-418-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900039
EISBN: 978-1-62708-350-8
... through refractories or apertures cut in the furnace. The “add on” kW or Btu’s will depend on the refractory value of the furnace insulation material and total surface area of the furnace and apertures. Electric heating elements usually are made of a nickel-chromium (Nichrome) material...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2022
DOI: 10.31399/asm.tb.mbheaktmse.t56030001
EISBN: 978-1-62708-418-5
... resistance high-entropy alloys lattice distortion multi-principle-element alloys plasticity refractory high-entropy alloys solid solution strengthening twinning HIGH-ENTROPY ALLOYS (HEAs) ( Ref 1 , 2 ), as a type of multi-principal-element alloys (MPEAs), have attracted the interest of a large...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170596
EISBN: 978-1-62708-297-6
... and their carbides are distinguished by high melting and boiling points, and high hardness, but poor electrical and thermal conductivities and poor oxidation resistance. In pure elemental form, refractory metals perform well only under low-current conditions. Forming a composite can compensate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200437
EISBN: 978-1-62708-354-6
..., the temperature at which transformation of ferrite into austenite is completed upon heating. Aecm, Aej, and Ae3 . . . Equilibrium transformation temperatures in steel. Acid 1) A solution or liquid with a pH less than 7 2) Term applied to slags, refractories, and minerals containing a high percentage of silica...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230131
EISBN: 978-1-62708-298-3
... these materials from realizing their full potential in the form of a production-level application to date. Beryllium has been found to form intermetallic compounds with most metallic elements in the periodic table where the binary systems have been examined. Aluminum and silicon are exceptions. The family...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900111
EISBN: 978-1-62708-350-8
.... Source: Ref 1 Fig. 2 Liquid-like behavior of gas fluidized beds. Source: Ref 1 Fig. 3 External resistance heating. (a) Fluidized-bed furnace with external heating by electrical resistance elements: (1) pivoting cover in two parts; (2) insulation; (3) refractory material; (4...
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
... Abstract Superalloys, although not strictly defined, are generally regarded as high-performance alloys based on group VIII elements (nickel, cobalt, or iron, with a high percentage of nickel) to which a multiplicity of alloying elements have been added. The defining feature of a superalloy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320003
EISBN: 978-1-62708-332-4
... of the components are covered later in this guide. Fig. 2.1 Iron and steel manufacturing overview The blast furnace is a massive structure that is about 100 m (330 ft) high, with a truncated furnace shell that is 30 to 40 m (100 to 130 ft) high, lined with refractory bricks ( Ref 1 ). These furnaces...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080335
EISBN: 978-1-62708-304-1
... rates ( Ref 7 , 16 , 22 – 25 ). For mass-burning units, the waterwalls are typically protected by alloy 625 weld overlay above the refractory lining at the lower, high-radiant section of the boiler ( Ref 9 ). The waterwalls in an RDF boiler are generally fully protected with alloy 625 weld overlay...