Title:
ESTIMATION METHOD OF DEGREE OF CREEP DAMAGE
Document Type and Number:
Japanese Patent JPS59150901
Kind Code:
A
Abstract:
PURPOSE:To easily and accurately estimate the degree of creep damage in turbine components by determining the degree of creep damage by measuring the creep void density in a very small sample taken from the turbine components. CONSTITUTION:A cubical sample having sides of several milimeters long is taken from turbine components which do not allow the measurement of hardness due to structural reasons. The creep void density is measured on the sample, and the hardness is decided from the relationship between the creep void density and hardness, and ultimately the degree of creep damage in the turbine components is estimated from the relationship between the hardness and degree of creep void density. Thus, the degree of creep damage in the turbine components which do not allow the measurement of hardness can easily and accurately be estimated.
Inventors:
SUGAYA MASAYOSHI
Application Number:
JP2371183A
Publication Date:
August 29, 1984
Filing Date:
February 17, 1983
Export Citation:
Assignee:
TOSHIBA KK
International Classes:
F01D5/00; F01D5/28; (IPC1-7): F01D5/28
Attorney, Agent or Firm:
Noriyuki Noriyuki