Hodnocení odolnosti konstrukčních ocelí vůči HIC a SSC
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Robotová, Martina
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Vysoká škola báňská - Technická univerzita Ostrava
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Abstract
The thesis contains the evaluation of structural steels to HIC (hydrogen induced cracking) and SSC (sulfide cracking under stress). In our case, was used duplex austenitic-ferritic steel type 2205, which was tested in two states, to the SSC. Delivered state (DS) after rolling and solution annealing (the exact mode was not known) and the laboratory state after the heat treatment (HT) regime 800°C /5 h/air, in which occured the intense of precipitation of the phase σ. The objective of the thesis was to show, that under the conditions and manner of testing, that the duplex steel 2205 is resistant to SSC.
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Import 03/08/2012
Subject(s)
Hydrogen, hydrogen embrittlement, degradation of materiál, diffusion of hydrogen, HIC (hydrogen induced cracking), SSC (sulfide cracking under stress), duplex steel, hydrogen sulfide, DS (delivered state), TZ ( manufactured heat)