Grain boundary sliding and rotational mechanisms of intragranular deformation at different creep stages of high-purity aluminum polycrystals at various temperatures and stresses; Materials Science and Engineering: A; Vol. 733

Grain boundary sliding and rotational mechanisms of intragranular deformation at different creep stages of high-purity aluminum polycrystals at various temperatures and stresses

書目詳細資料
Parent link:	Materials Science and Engineering: A Vol. 733.— 2018.— [P. 276-284]
企業作者:	Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения
其他作者:	Panin V. E. Viktor Evgenyevich, Surikova N. S. Nataljya Sergeevna, Elsukova T. F. Tamara Filippovna, Vlasov I. V. Ilya Viktorovich, Borisyuk D. V. Darjya Valerjevna
總結:	Title screen In the paper we show that grain boundary sliding dominates in the creep of A999 aluminum polycrystals and is accommodated by rotation modes of intragranular deformation. Accommodation mechanisms strongly depend on the applied stress σ and creep temperature T. At low σ and T, accommodation occurs by dislocation glide and mesoscale fragmentation. At high σ and T, there appears lattice curvature, which causes the development of shear bands, multiscale fragmentation, and formation of a quasi-neck with nanosized subgrains and plastic microrotations. Noncrystallographic shears in their subboundaries propagate in local lattice curvature zones under τmax by the plastic distortion mechanism. Режим доступа: по договору с организацией-держателем ресурса
語言:	英语
出版:	2018
主題:	электронный ресурс труды учёных ТПУ creep high-purity aluminum polycrystals grain boundary sliding plasticity methods grains and interfaces fracture поликристаллы алюминий ползучесть пластичность изломы
在線閱讀:	https://doi.org/10.1016/j.msea.2018.07.038
格式:	電子 Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661421

因特網

https://doi.org/10.1016/j.msea.2018.07.038