The effect of hydrogen on strain hardening and fracture mechanism of high-nitrogen austenitic steel

The effect of hydrogen on strain hardening and fracture mechanism of high-nitrogen austenitic steel

Podrobná bibliografie
Parent link:IOP Conference Series: Materials Science and Engineering
Vol. 140 : Interdisciplinary Problems in Additive Technologies.— 2016.— [012005, 6 p.]
Korporativní autor: Национальный исследовательский Томский политехнический университет (ТПУ)
Další autoři: Maier G. G., Astafurova E. G., Melnikov E. V., Moskvina V. A., Vojtsik V. F., Galchenko N. K., Zakharov G. N.
Shrnutí:Title screen
High-nitrogen austenitic steels are perspective materials for an electron-beam welding and for producing of wear-resistant coatings, which can be used for application in aggressive atmospheres. The tensile behavior and fracture mechanism of high-nitrogen austenitic steel Fe-20Cr-22Mn-1.5V-0.2C-0.6N (in wt.%) after electrochemical hydrogen charging for 2, 10 and 40 hours have been investigated. Hydrogenation of steel provides a loss of yield strength, uniform elongation and tensile strength. The degradation of tensile properties becomes stronger with increase in charging duration - it occurs more intensive in specimens hydrogenated for 40 hours as compared to ones charged for 2-10 hours. Fracture analysis reveals a hydrogen-induced formation of brittle surface layers up to 6 [mu]m thick after 40 hours of saturation. Hydrogenation changes fracture mode of steel from mixed intergranular-transgranular to mainly transgranular one.
Vydáno: 2016
Témata:
электронный ресурс
труды учёных ТПУ
водород
деформационное упрочнение
механизмы разрушения
высокопрочные стали
аустенитные стали
электронно-лучевая сварка
азот в стали
гидрирование
On-line přístup:http://dx.doi.org/10.1088/1757-899X/140/1/012005
http://earchive.tpu.ru/handle/11683/34988
Médium: Elektronický zdroj Kapitola
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=650691

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