Год выпуска: 2014 Автор: Prosenjit Das,R. Jayaganthan and I.V. Singh Издательство: LAP Lambert Academic Publishing Страниц: 156 ISBN: 9783659585524
Описание
The present work speaks about experimental evaluation of Mechanical and Fracture properties and simulation studies (by FEM and XFEM) to analyse fracture behaviour of ultra fine grained 7075 Al alloy produced by cryorolling technique. The precipitation hardenable Al 7075 alloy (Al-Mg-Zn-Cu) plates were solutionised and then cryorolling (rolling at liquid nitrogen temperature) done to achieve different thickness reductions (40%, 70% and 90%). It was observed that at 70% thickness reduction fully formed UFG (Ultra Fine Grained) structure produced for the 7075 alloy. Some of the specimens were then artificially aged after giving short annealing treatment for a while at different temperatures to optimize the peak ageing condition. The effect of cryorolling and cryorolling + peak ageing conditions on mechanical properties and fracture characteristics under different loads were investigated. Microstructural characterization done using SEM and FESEM. FEM and XFEM simulations were carried out...
Ув. Марина Михайловна, благодарю за Дипломную работу - все вроде бы в порядке. Получил от Вас доклад к дипломной работе. Доклад содержательный, спасибо!