Hydrogen attack in an austenitic stainless steel |
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| Authors: | M. J. Yacamán T. A. Parthasarathy J. P. Hirth |
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| Affiliation: | (1) Institute de Física, University of Mexico, Mexico;(2) Engineering Department, The Ohio State University, 43210 Columbus, OH |
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| Abstract: | ![]()
A titanium stabilized 321 grade austenitic stainless steel was exposed to hydrogen at 14 MPa pressure and at 873 K. Hydrogen attack occurred in the form of small bubbles at alloy-carbide-matrix interfaces. The damaged regions were studied by transmission electron microscopy, and the gas composition in the bubbles was analyzed. The results are discussed in terms of a thermodynamic analysis of possible hydrogen attack reactions. |
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