Paper Title:
Effects of Thermal Exposure on Microstructure and Mechanical Properties of Ni Based Superalloy GTD111
  Abstract

The rotating components in the hot sections of land-based gas turbine are exposed to severe environment during several ten thousand hours at above 1100 oC operating temperature. The failure mechanism of the hot gas components would be accompanied by material degradation in the properties of high temperature and creep rupture strength. Many hot gas components in gas turbine are made of Ni-based superalloy because of their high temperature performance. In this work, we surveyed the time and temperature dependent degradation of Ni-based superalloy. We prepared the specimens from GTD111 that are exposed at 871 oC and 982 oC in 1,000 ~ 10,000 hours. We carried out the mechanical test and microstructural observation.

  Info
Periodical
Edited by
George Ferguson, Ashvin Thambyah, Michael A Hodgson and Kelly Wade
Pages
31-34
DOI
10.4028/www.scientific.net/AMR.275.31
Citation
H. S. Lee, K. B. Yoo, D. S. Kim, J. H. Kim, "Effects of Thermal Exposure on Microstructure and Mechanical Properties of Ni Based Superalloy GTD111", Advanced Materials Research, Vol. 275, pp. 31-34, 2011
Online since
July 2011
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$32.00
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