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RESEARCH PAPERS: Gas Turbines: Manufacturing and Materials

Microstructural Investigation of the Weld HAZ in a Modified 800H Alloy

[+] Author and Article Information
C. D. Lundin, C.-Y. P. Qiao

Materials Science and Engineering, The University of Tennessee, Knoxville, Knoxville, TN 37996-2200

J. Eng. Gas Turbines Power 116(3), 629-634 (Jul 01, 1994) (6 pages) doi:10.1115/1.2906866 History: Received March 03, 1993; Online April 24, 2008

Abstract

Detailed metallographic investigations of Gleeble simulated HAZ samples in modified 800H were performed. Precipitate dissolution, gain growth, HAZ liquation and the hardness degradation behavior in modified 800H were also addressed. Results of this study agree with previous HAZ hot cracking and softening behavior evaluations.

Copyright © 1994 by The American Society of Mechanical Engineers
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