Degradation of sparin glyalloyed steel

Authors

  • О. V. Liubymova-Z inchenko

Keywords:

degradation, Industry, oschadnolehyrovannыe steel.

Abstract

A considerable part o f equipm ent in chem ical and oil-refining industry hasbeen in service for a long tim e and com es up to depletion o f the planned resource. Its further service is possible subject to com pliance o f m echanical and other characteristics to the values laid down in the regulations. Most com monly the current values of the measured characteristics have been com pared with the minim um allow ed for such technical objects during the planned researches and after accidents. This prevents from tracking o f changes tendencies o f such characteristics. By the exam ple of strength properties study of sparingly alloyed steels o fASTM A 333 Grade 6 and JIS G3458 STPA22 grades the possibility to forecast the changes of mechanical characteristics during a long-term usage has been shown. This allow s us not only to trace the tendencies of their variations in time, but also to give prediction estim ates. This increases the operational safety of equipm ent and the ability to predict the residual life appears.

References

Pokhmurskyi V.I. Corrosion fatigue of metals and alloys / V.I. Pokhmurskyi, M.S. Khoma. - Lviv: Spolom, 2008. - 301 c.

09G2S steel aging research / O.G. Arkhipov, V.A. Borisenko, M.S. Khoma [et al.] // Reporter of East- Ukrainian National University n.a. V. Dal. - 2007. Part 2. - No. 11. - P.24-30.

Arkhipov O.G. Appraisal of steel degradation of pertroleum refinery and chemical production equipment/ O.G. Arkhipov, O.V. Zinchenko, D.O. Kovalov [et al.] // Metal structures. - 2009. - Vol.15, No. 2. - P.117-122.

Bugay V.V. Metal durability and lifetime of power engineering equipment N. V. Bugay, T. G. Berezina, N. I. Trunin. - M.: Energoizdat, 1994. - 214 p.

Gorynin N.V. Aging of materials of nuclear power plant equipment after design service life / N. V. Gorynin, B. T. Timofeev // Physicochemical mechanics of materials. - 2006. - No 2. - P.13 - 27.

Nikiforchin G.M. Abnormal display of high-grade metal degradation of welded joint seam of sparingly alloyed steel / G.M. Nikiforchin, O.Z. Student, A.D. Markov // Physicochemical mechanics of materials. - 2007. - No. 1. - P. 73 - 80.

Kennedi A. D. Creeping and fatigue of metals / M.: Metallurgy, 1965. -311 p.

Kryzhanivskyi Y.I., Nikiforchin G.M. Peculiarities of corrosive and hydrogenic degradation of oil-and-gas pipeline steels and crude oil storage tanks // Physicochemical mechanics of materials. - 2011. - No. 2. - P.11-20.

Downloads

Published

2014-03-25

Issue

Section

Proceedings in memory of Starodubov