1-20 of 274 Search Results for

reactive 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
Image
Published: 01 November 2010
Fig. 5.11 Dynamic oxidation results for reactive-element-modified CMSX-4 at (a) 1093 °C (2000 °F) and (b) 1149 °C (2100 °F). Source: Ref 12 More
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
..., reactive elements, and oxides influence mechanical properties and behaviors. It also discusses the effect of trace elements. grain-boundary elements mechanical properties reactive elements refractory elements superalloys trace elements THE PRIMARY GOAL in superalloy development is to obtain...
Image
Published: 01 November 2007
Fig. 8.8 General reactivity of the important elements in steels More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140071
EISBN: 978-1-62708-264-8
... to be much more reactive than other elements. Such reactive elements will combine with the elements carbon, nitrogen, oxygen, and sulfur to form carbides, nitrides, oxides, and sulfides. In addition to carbon, steels always contain a low level of nitrogen, oxygen, and sulfur. Consequently, it is common...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000111
EISBN: 978-1-62708-313-3
... ratio should be selected. If the service temperature is not too high, an alloy that forms both γ″ and γ′ can be considered, which will provide strengthening at low to intermediate temperatures. Any composition that includes reactive elements such as yttrium, cerium, or lanthanum is desirable, because...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310057
EISBN: 978-1-62708-286-0
... falls until only the most reactive element present in high concentration can be oxidized. For stainless steels, this means that a layer of Cr 2 O 3 is eventually established in contact with the alloy. The Electrochemical Nature of Oxidation Once an inner scale of Cr 2 O 3 is formed, as shown...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140099
EISBN: 978-1-62708-264-8
... contribute to hardness, but the contribution drops off as the size of the carbides increases. As explained in Chapter 8, “Control of Grain Size by Heat Treatment and Forging,” the reactive alloying elements segregate into the cementite component of steel. This changes the composition of the carbides from...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310001
EISBN: 978-1-62708-286-0
... be eliminated. There are additional reasons to eliminate carbon and nitrogen. During cooling as these elements become less and less soluble, they must precipitate. The most thermodynamically favorable form in which they can precipitate is as a compound of chromium, with which they are very reactive...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.pb.t51230221
EISBN: 978-1-62708-351-5
... 1350 (2460) –57 Poor FeSi SiC C 1350 (2460) –57 Poor Solubility of some reactive metals in brazing alloy constituents at 1100 °C (2010 °F) Table 7.3 Solubility of some reactive metals in brazing alloy constituents at 1100 °C (2010 °F) Solvent Solubility, wt% Solute...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170308
EISBN: 978-1-62708-297-6
... in Table 3 . Effects of Alloying Elements The alloying additions used in commercial and advanced developmental niobium alloys include: Substitutional solutes (Mo, W, V, Ta) Reactive elements that have a higher negative free energy of formation for carbides, nitrides, and/or oxides than...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280025
EISBN: 978-1-62708-267-9
... above about 1200 °F (649 °C). This precipitate is found in only a few nickel-(nickel-iron-) base alloys. Carbides, where carbon in amounts of about 0.02 to 0.2 wt% combines with reactive elements, such as titanium, tantalum, hafnium, and niobium, to form metal carbides. There are several carbide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060315
EISBN: 978-1-62708-261-7
...-resistance alloys, superalloys, refractory metals, low-melting-point metals, reactive metals, precious metals, rare earth metals, and metalloids or semimetals. It also provides a brief summary on special-purpose materials, including uranium, vanadium, magnetic alloys, and thermocouple materials. light...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910021
EISBN: 978-1-62708-250-1
... of a metal to corrode, that is, reactivity Tendency of metals to form corrosion products Important solution characteristics with respect to corrosion, including conductivity, acidity/alkalinity, oxidizing power, and solubility Determination of corrosion rates and corrosion rate allowances...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310155
EISBN: 978-1-62708-286-0
... of reactive elements such as titanium. The refining treatments used for carbon steel and stainless steel are very similar, but there are subtle differences because of the difference in the thermodynamics of dilute solutions like carbon steel and highly alloyed, nondilute solutions like stainless steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... expressed in this chapter, is the interaction of one or more metal atoms/ions with one or more oxygen atoms/ions to create an oxide. Some metals can form more than one oxide, and that is true for some of the elements in superalloys. There are three principal forms of oxidation: General or uniform...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870251
EISBN: 978-1-62708-299-0
... and aluminum alloys AA No. Composition, wt% Si Fe Cu Mn Mg Cr Ni Zn Ga V Specified other elements Ti Unspecified other elements Al, min Each Total 1035 0.35 0.6 0.10 0.05 0.05 … … 0.10 … 0.05 … 0.03 0.03 … 99.35 1040 0.30 0.50 0.10 0.05 0.05 … … 0.10...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170337
EISBN: 978-1-62708-297-6
.... The embrittlement involves the reaction of water vapor in air with reactive elements (aluminum, for example) in intermetallics to form atomic hydrogen, which drives into the metal and causes premature fracture. Thus, the poor fracture resistance and limited fabricability have restricted the use of aluminides...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240597
EISBN: 978-1-62708-251-8
... as an alloying element in superalloys than in reactor applications. Hafnium is a grain-boundary strengthener in superalloys where 1.5 to 2 wt% Hf is added to directionally solidified superalloys to prevent grain-boundary cracking. Like other reactive metals, hafnium resists attack by many chemicals because...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220027
EISBN: 978-1-62708-341-6
... Abstract This chapter focuses on the transfer of energy between the power supply and the induction heating coil. The most efficient transfer requires that the induction heated load and coil be matched to the power supply and that the electrical circuit containing these elements be properly...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900111
EISBN: 978-1-62708-350-8
... steels (cutting) 0.003 0.0001 ... Corrosion- and heat-resistant steels 0.0038 0.03 0.00015 0.001 Ductile, malleable, and gray cast iron 0.0038 0.03 0.00015 0.001 Powder metal products (ferrous) 0.0038 0.0 0.00015 0.001 Source: Ref 1 Fig. 5 Immersed-element ceramic...