Graded Grain Structure to Improve Hydrogen-Embrittlement Resistance of TWIP Steel
نویسندگان
چکیده
منابع مشابه
Hydrogen embrittlement of grain boundaries in nickel: an atomistic study
The chemomechanical degradation of metals by hydrogen is widely observed, but not clearly understood at the atomic scale. Here we report an atomistic study of hydrogen embrittlement of grain boundaries in nickel. All the possible interstitial hydrogen sites at a given grain boundary are identified by a powerful geometrical approach of division of grain boundary via polyhedral packing units of a...
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Eiji Akiyama , Songjie Li , Yuuji Kimura , Kaneaki Tsuzaki , Nobuyoshi Uno c a National Institute for Materials Science 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan b School of Materials Science and Engineering, University of Science and Technology Beijing, No. 30 Xueyuan Road, Hidian Zone, Beijing 100083, China c Nippon Steel and Sumikin Metal Products Co, Ltd, SA Bldg., 17-12 Kiba 2-chome, ...
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The feasibility of using ‘‘grain-boundary engineering” techniques to reduce the susceptibility of a metallic material to intergranular embrittlement in the presence of hydrogen is examined. Using thermomechanical processing, the fraction of ‘‘special” grain boundaries was increased from 46% to 75% (by length) in commercially pure nickel samples. In the presence of hydrogen concentrations betwee...
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P. Vaňová, J. Sojka. VŠB Technical u niversity of O strava, FMME, Ostrava, Czech Republic This paper is dealing with hydrogen embrittlement of austenitic-ferritic 2205 duplex steel using the slow strain rate test (SSRT). The original material was subjec ted to heat treatment under 700 °C during 5 hours and f ollowing aircooling with the aim of pr ovoking sigma phase pr ecipitation and embrittle...
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ژورنال
عنوان ژورنال: Crystals
سال: 2020
ISSN: 2073-4352
DOI: 10.3390/cryst10111045