Degradation of 09H2S steel under the conditions of petroleum refining.
In: Materials Science, Jg. 46 (2011-05-01), Heft 5, S. 640-646
Online
academicJournal
Zugriff:
We study the changes in the properties of 09H2S + 08Kh13 bimetal from the K-6 and K-2 columns of the 'LYNYK' Closed Joint-Stock Company after operation for 27 and 12 yr, respectively. At 20 and 200°C, the mechanical properties of 09H2S steel after operation are compared with the properties of the metal in the as-delivered state. It is shown that, the most informative parameters among the mechanical characteristics of the metal are σ, σ, and δ, and the complex quantity σ /σ. The relative narrowing ψ and impact toughness are insufficiently informative due to the significant spread of the data of measurements. The long-term operation of the bimetal results in the pitting corrosion of the inner surface of the column, corrosion cracking in the heat-affected zone of welded joints, and knife-line corrosion. It is shown that the theory of dislocations adequately explains the causes and mechanism of hardening of steels operating in corrosive media. [ABSTRACT FROM AUTHOR]
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Titel: |
Degradation of 09H2S steel under the conditions of petroleum refining.
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Autor/in / Beteiligte Person: | Arkhypov, O. ; Khoma, M. ; Borysenko, V. ; Lipko, H. ; Zinchenko, O. ; Boyarchuk, O. ; Koval'ov, D. |
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Zeitschrift: | Materials Science, Jg. 46 (2011-05-01), Heft 5, S. 640-646 |
Veröffentlichung: | 2011 |
Medientyp: | academicJournal |
ISSN: | 1068-820X (print) |
DOI: | 10.1007/s11003-011-9335-3 |
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