Determination of fracture toughness for small-sized specimens with ultrafine grain structure

Determination of fracture toughness for small-sized specimens with ultrafine grain structure

Dettagli Bibliografici
Parent link:AIP Conference Proceedings
Vol. 1623 : International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk, Russia, 3–5 September 2014.— 2014.— [P. 111-114]
Autore principale: Deryugin Ye. Ye.
Ente Autore: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра материаловедения в машиностроении (ММС)
Altri autori: Panin V. E. Viktor Evgenyevich, Suvorov B. I.
Riassunto:Title screen
The results of changing the fracture toughness of materials are given for the VT6 titanium alloy. Its coarse grain structure was reduced down to ultrafine structure by forging. The specific energy of fracture [gamma] for the small-sized chevron-notched specimens was found thanks to the new technique. It is shown that severe plastic deformation reduces [gamma] at room temperature. The structure of the surface fracture of the VT6 alloy’s ultrafine grain structure can be conceived as local zones of strong deformed material with a high concentration of pores. Such kind of structure cannot be formed only by means of crystallographic shears along close-packed planes. That fact proves the cardinal role of rotational modes of deformation in the origination and formation of a crack at various scale levels.
Режим доступа: по договору с организацией-держателем ресурса
Lingua:inglese
Pubblicazione: 2014
Soggetti:
электронный ресурс
труды учёных ТПУ
разрушения
вязкость
титановые сплавы
пластические деформации
деформации
трещины
Accesso online:http://dx.doi.org/10.1063/1.4898895
http://earchive.tpu.ru/handle/11683/35683
Natura: Elettronico Capitolo di libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=641631

Documenti analoghi

Documenti analoghi