Search academic texts

Information × Registration Number 0219U102074, 0119U102078 , R & D reports Title Development of the express-method for laboratory simulation of in-service degradation of structural steels in the energy sector for an evaluation of their susceptibility to stress corrosion cracking. popup.stage_title Head Nykyforchyn Hryhoriy M., Доктор технічних наук Registration Date 18-12-2019 Organization Karpenko Physico-Mechanical Institute of NASU popup.description2 The main regularities of operational changes of structure, physico-mechanical, corrosion and corrosion-mechanical properties of steels of energy sector were analysed. The influence of hydrogen on in-service degradation of steels is definitely substantiated by a number of examples. The features of the influence of long-term operation on mechanical properties of the X52 and 17H1S steels were revealed. There were two features: the double-edged effect of the operation of steels on plasticity characteristics and significant decrease in impact toughness. It was established that X52 pipeline steels after operation were characterized by a decrease in corrosion resistance, an increase in electrochemical activity, and increasing susceptibility to stress corrosion cracking and hydrogen embrittlement. The basic mechanical characteristics of A 516 Grade 70 steel were determined and further research activity was discussed during the visit of Indian partners.  Product Description popup.authors Hredil Myroslava I. Zvirko Olha I. Kurnat Ivan M. Tsyrulnyk Oleksandr T. Shtoyko Ivan P. popup.nrat_date 2020-04-02 Close