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Influence of turbine blades fabrication conditions on their lifetime

M. SOHACIU1, S. CIUCĂ1,* , D. SAVASTRU2, G. COMAN1, A. PREDESCU1, A. BERBECARU1, C. COTRUŢ1, E. MATEI1, I. A. GHERGHESCU1, C. PREDESCU1

Affiliation

  1. Politehnica University of Bucharest, Romania
  2. National Institute of R&D for Optoelectronics INOE 2000, 409 Atomistilor Street, PO BOX MG-5, RO 077125, Magurele – Ilfov, Romania

Abstract

The paper presents results of research regarding the behavior in time of the material used in the construction of two hydroelectric turbines on the river Olt. The optoelectronic methods and other techniques of investigation were used: - Metallographic analysis by optical microscopy; - Structural and compositional investigation by scanning electron microscopy and energy dispersive spectrometry - Estimation of corrosion resistance by electrochemical experiments The elaboration and casting process of the used martensitic stainless steels are decisive elements concerning the lifetime of the two hydroelectric turbines..

Keywords

Turbines manufacturing, Martensitic stainless steels, SEM, EDS, Corrosion resistance.

Citation

M. SOHACIU, S. CIUCĂ, D. SAVASTRU, G. COMAN, A. PREDESCU, A. BERBECARU, C. COTRUŢ, E. MATEI, I. A. GHERGHESCU, C. PREDESCU, Influence of turbine blades fabrication conditions on their lifetime, Optoelectronics and Advanced Materials - Rapid Communications, 10, 3-4, March-April 2016, pp.257-261 (2016).

Submitted at: Oct. 28, 2015

Accepted at: April 5, 2016