TEM investigation of the as-quenched compound layer formed by austenitic nitrocarburizing
- Shanghai Jiao Tong Univ. (China)
The as-quenched compound layer of a 0.2% C steel formed by austenitic nitrocarburizing is found to be composed of single-phase {epsilon}-nitrocarbide with an hexagonal structure, as determined by electron diffraction. The difference in the site occupancy of nitrogen or carbon atoms may result in the formation of various types of {epsilon}-nitrocarbide; that is, {epsilon}-Fe{sub 2}(N,C), {epsilon}-Fe{sub 2{center_dot}3}(N,C), and {epsilon}-Fe{sub 3}(N,C). By a comparison of the intensities of the superlattice reflection spots observed in the electron diffraction patterns with those in computed simulation patterns, the phase in the compound layer of the as-quenched sample was identified as {epsilon}-Fe{sub 2{center_dot}3}(N,C).
- OSTI ID:
- 316018
- Journal Information:
- Materials Characterization, Journal Name: Materials Characterization Journal Issue: 1 Vol. 41; ISSN 1044-5803; ISSN MACHEX
- Country of Publication:
- United States
- Language:
- English
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