Oxidation/sulfidation behavior of Fe-Cr alloys: A reactive-element effect

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Corrosion resistance of a number of structural alloys in high-temperature environments is achieved by the formation of a continuous chromium oxide scale. Research on high-temperature corrosion of structural alloys has been in progress to reduce the rate of oxidation, improve the adhesion of oxide scale to the substrate alloy, and to stabilize the oxide scale against other corrosive agents such as sulfur, chlorine, alkalies, and ash/sorbent deposits. Extensive research is being conducted at Argonne National Laboratory to (1) evaluate mechanisms of oxidation, sulfidation, and break-away corrosion of chromia- and alumina-forming alloys exposed to mixed-gas atmospheres that span a wide range ... continued below

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Pages: (11 p)

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Natesan, K. & Park, J.H. April 1, 1992.

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Description

Corrosion resistance of a number of structural alloys in high-temperature environments is achieved by the formation of a continuous chromium oxide scale. Research on high-temperature corrosion of structural alloys has been in progress to reduce the rate of oxidation, improve the adhesion of oxide scale to the substrate alloy, and to stabilize the oxide scale against other corrosive agents such as sulfur, chlorine, alkalies, and ash/sorbent deposits. Extensive research is being conducted at Argonne National Laboratory to (1) evaluate mechanisms of oxidation, sulfidation, and break-away corrosion of chromia- and alumina-forming alloys exposed to mixed-gas atmospheres that span a wide range of oxygen, sulfur, and chlorine activities typical of combustion and gasification systems; (2) develop an understanding of the role of several microalloy constituents (e.g., Zr, Nb, Y, Ce, V) in oxidation/sulfidation processes and scale breakdown; (3) characterize the physical, chemical and mechanical properties of surface scales that are resistant to sulfidation attack; and (4) evaluate the role of deposits, such as alkali sulfates, alkali chlorides, ash, and sulfur sorbents, in the corrosion behavior or metallic alloys, selected coatings, and ceramic materials.

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Pages: (11 p)

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OSTI; NTIS; GPO Dep.

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  • 6. annual fossil energy materials conference, Oak Ridge, TN (United States), 12-14 May 1992

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  • Other: DE92016172
  • Report No.: ANL/CP-75787
  • Report No.: CONF-9205123--7
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5028587
  • Archival Resource Key: ark:/67531/metadc1052673

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  • April 1, 1992

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  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 30, 2018, 1:10 p.m.

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Natesan, K. & Park, J.H. Oxidation/sulfidation behavior of Fe-Cr alloys: A reactive-element effect, article, April 1, 1992; Illinois. (digital.library.unt.edu/ark:/67531/metadc1052673/: accessed December 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.