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Power Technology and Engineering

, Volume 47, Issue 4, pp 285–287 | Cite as

Cause of Damage of Superheater DI59-steel Tubes of TPE-216M Boiler at the Kharanor State Regional Power Plant (GRÉS)

  • V. A. Bogachev
  • T. P. Pshechenkova
  • B. É. Shkol’nikova
Article
  • 44 Downloads

The state of the superheater DI59-steel tubes with damage identified by a hydraulic test of the TPE-216M boiler at the Kharanor GRÉS before commissioning of the power unit is examined. It is shown that the damage is due to the improper heat treatment of the tubes by the manufacturer, which resulted in corrosion cracking because of the presence of strain-induced martensite and residual stresses. It is proposed to add the maximum permissible hardness across the wall thickness to the specifications of DI59-steel pipes.

Keywords

superheater tube bend steel DI59 corrosion cracking strain-induced martensite hardness 

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References

  1. 1.
    E. V. Kuznetsov, L. A. Chechel’, and B. É. Shkol’nikova, “High-temperature oxidation- and creep-resistant austenitic chromium-manganese steel for boiler heating-surface tubes,” Izobret. Mashinostr., No. 2, 57 (2000).Google Scholar
  2. 2.
    V. A. Bogachev, D. S. Zmienko, A. Å. Korneev, T. P. Pshechenkova, and B. É. Shkol’nikova, “Principles of examining thermal nonuniformity in steam superheaters made of austenitic steels using a ferrotometer,” Teploénergetika, 59(4), 274 – 282 (2012).Google Scholar
  3. 3.
    V. A. Bogachev, A. N. Samodurov, and A. V. Tarzanov, “Instability and damage of coils of platen superheaters,” Teploénergetika, 55(2) (2008).Google Scholar
  4. 4.
    State Standard GOST 8695–75. Pipes: Flattening Test Method [in Russian], Izd. Standartov, Moscow (1981).Google Scholar
  5. 5.
    Technical Specifications TU 14-3R-55–2001. Seamless Steel Tubes for Steam Boilers and Pipelines [in Russian], Izd. GNTs RF “TsNIITMASh,” Moscow (2001).Google Scholar
  6. 6.
    A. E. Korneev, G. Ya. Sherman, and S. Yu. Kolesnikov, “Formation of defects on the surface of austenitic-steel tubes,” Korr.Mater. Zashch., No. 5, 15 – 19 (2008).Google Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • V. A. Bogachev
    • 1
  • T. P. Pshechenkova
    • 1
  • B. É. Shkol’nikova
    • 1
  1. 1.JSC “All-Russia Thermal Engineering Institute” (VTI)MoscowRussia

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