Cluster carburizing. Progress report, June 1, 1977--May 31, 1978 [electronic resource].
- Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1978.
- Physical Description:
- Pages: 11 : digital, PDF file
- Additional Creators:
- United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- When aging quenched Ta-27% Hf alloys at 685/sup 0/C, excess thermal vacancies were found to condense into vacancy loops. The loops are responsible for the first age-hardening peak observed during heat treatment. In a study of binary alloys formed by two monocarbides, a miscibility gap was found in the NbC-HfC system with a critical temperature between 1100--1200/sup 0/C, while homogeneous solutions were formed by TaC-HfC down to 1000/sup 0/C. An investigation of solid phase carburizing of Ta-Hf and Nb-Hf alloys indicated that this technique results in a higher carbon activity, but slower kinetics than was obtained by gas carburizing. Work continues on improving this technique and on preparing cluster carburized specimens for study by transmission electron microscopy.
- Published through SciTech Connect., 02/01/1978., "coo-2354-5", Morral, J.E., and Connecticut Univ., Storrs (USA)
- Funding Information:
View MARC record | catkey: 14462146