The microstructure, tensile and impact properties of low-activation ferritic-martensitic steel EK-181 after high-temperature thermomechanical treatment
In this work, we study the effect of high-temperature thermomechanical treatment (HTMT) with deformation in the austenite region on the microstructure, tensile properties, impact toughness, and fracture features of advanced low-activation 12% chromium ferritic-martensitic reactor steel EK-181. HTMT...
| Published in: | Metals Vol. 12, № 11. P. 1928 (1-20) |
|---|---|
| Other Authors: | , , , , , , , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001016202 Перейти в каталог НБ ТГУ |
| LEADER | 03279nab a2200481 c 4500 | ||
|---|---|---|---|
| 001 | koha001016202 | ||
| 005 | 20231220152517.0 | ||
| 007 | cr | | ||
| 008 | 231214|2022 sz s a eng d | ||
| 024 | 7 | |a 10.3390/met12111928 |2 doi | |
| 035 | |a koha001016202 | ||
| 040 | |a RU-ToGU |b rus |c RU-ToGU | ||
| 245 | 1 | 4 | |a The microstructure, tensile and impact properties of low-activation ferritic-martensitic steel EK-181 after high-temperature thermomechanical treatment |c N. A. Polekhina, V. V. Linnik, I. Y. Litovchenko [et al.] |
| 336 | |a Текст | ||
| 337 | |a электронный | ||
| 504 | |a Библиогр.: 40 назв. | ||
| 520 | 3 | |a In this work, we study the effect of high-temperature thermomechanical treatment (HTMT) with deformation in the austenite region on the microstructure, tensile properties, impact toughness, and fracture features of advanced low-activation 12% chromium ferritic-martensitic reactor steel EK-181. HTMT more significantly modifies the steel structural-phase state than the traditional heat treatment (THT). As a result of HTMT, the hierarchically organized structure of steel is refined. The forming grains and subgrains are elongated in the rolling direction and flattened in the rolling plane (so-called pancake structure) and have a high density of dislocations pinned by stable nanosized particles of the MX type. This microstructure provides a simultaneous increase, relative to THT, in the yield strength and impact toughness of steel EK-181 and does not practically change its ductile-brittle transition temperature. The most important reasons for the increase in impact toughness are a decrease in the effective grain size of steel (martensite blocks and ferrite grains) and the appearance of a crack-arrester type delamination perpendicular to the main crack propagation direction. This causes branching of the main crack and an increase in the absorbed impact energy. | |
| 653 | |a микроструктура | ||
| 653 | |a механические свойства | ||
| 653 | |a вязко-хрупкий переход | ||
| 653 | |a температура | ||
| 653 | |a ударная вязкость | ||
| 653 | |a высокотемпературная термомеханическая обработка | ||
| 653 | |a расслаивание | ||
| 653 | |a мартенситно-ферритные стали | ||
| 655 | 4 | |a статьи в журналах |9 916904 | |
| 700 | 1 | |a Polekhina, Nadezhda A. |9 811609 | |
| 700 | 1 | |a Linnik, Valeria V. |9 905665 | |
| 700 | 1 | |a Litovchenko, Igor Yu. |9 91896 | |
| 700 | 1 | |a Almaeva, Kseniya V. |9 854600 | |
| 700 | 1 | |a Akkuzin, Sergey A. |9 105674 | |
| 700 | 1 | |a Moskvichev, Evgeny N. |9 482395 | |
| 700 | 1 | |a Chernov, Vyacheslav M. |9 90213 | |
| 700 | 1 | |a Leontyeva-Smirnova, Mariya V. |9 916905 | |
| 700 | 1 | |a Degtyarev, Nikolay A. |9 916906 | |
| 700 | 1 | |a Moroz, Kirill A. |9 916907 | |
| 773 | 0 | |t Metals |d 2022 |g Vol. 12, № 11. P. 1928 (1-20) |x 2075-4701 | |
| 852 | 4 | |a RU-ToGU | |
| 856 | 4 | |u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001016202 | |
| 856 | |y Перейти в каталог НБ ТГУ |u https://koha.lib.tsu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=1016202 | ||
| 908 | |a статья | ||
| 999 | |c 1016202 |d 1016202 | ||
| 039 | |b 100 | ||