Mechanical Properties According to Heat Treatment for Gas Turbine Blade Material

Abstract:

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This work was studied for the changes of thermal properties on GTD-111 DS (Directional Solidification) gas turbine blade. In this study, gas turbine blades with 24,000~34,000 firing hours was used to get more effective result, gradually applied hot isostatic pressing (HIP) and post-heat treatment for these samples. In the latter steps, we observed changes of γ´ phase affected in material properties, and microhardness test was carried out to evaluate mechanical properties according to changes of γ´ fraction and shape. Experimental result shows, changes of γ´ fraction and shape were affected by HIP and post-heat treatment. And also mechanical properties changes such as micro-hardness related to γ´ phase. In this study, we explained changing transition of microstructure according to γ´ fraction distribution.

Info:

Periodical:

Advanced Materials Research (Volumes 26-28)

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

209-212

DOI:

10.4028/www.scientific.net/AMR.26-28.209

Citation:

M. Y. Kim et al., "Mechanical Properties According to Heat Treatment for Gas Turbine Blade Material", Advanced Materials Research, Vols. 26-28, pp. 209-212, 2007

Online since:

October 2007

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Price:

$35.00

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