Microtexture, Grain Boundary and Grain Junction Evolution in Al-Li Sheet During Superplastic Forming
نویسندگان
چکیده
منابع مشابه
Evolution of the Grain Boundary Character Distribution in Strontium Titanate during Grain Growth
Previous experimental results have shown the grain boundary plane distribution (GBPD) for a given material to be anisotropic and approximately inversely correlated to the anisotropic grain boundary energy distribution. The goal of the present work is to quantify how the anisotropic GBPD evolves during processing. Interrupted grain growth experiments were performed to observe the evolution of th...
متن کاملGrain boundary character evolution during grain growth in a Zr alloy
Grain boundary character in samples of Zr701 annealed at two different temperatures has been investigated in terms of lattice misorientation. The main difference between the two samples was the extent of grain growth post-recrystallization. The textures were typical for the material. Differences between the texture-based misorientation distribution function (T-MDF) and the microstructure-based ...
متن کاملCavitation During Superplastic Forming
Cavitation is the opening of pores during superplastic forming, typically at grain boundary triple points or on second phase grain boundary particles during slip of grain boundaries. Theories for the initiation of cavitation are reviewed. It seems that cavitation is unlikely to occur by processes intrinsic to metals such as dislocation mechanisms or point defect condensation. It is proposed tha...
متن کاملGrain boundary energy and grain growth in Al films: Comparison of experiments and simulations
Relative free energies of h111i tilt boundaries in 1.7-lm-thick Al films were compared with boundary enthalpies obtained via molecular dynamics simulations. Grain growth studies in 25 and 100-nm-thick Al films were compared with simulations. The sources of the differences between experimental and simulational results are discussed. 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights...
متن کاملElectron microscope study of microtexture and grain surfaces in limestones
Electron micrographs of directcarbon replicas having magnifications of 5400 to 23, 500 times reveal in detail the grain size, shape, and packing of the particles comprising very fine-grained limestones. At these magnifications, however, only portions of a few grains in mediumor coarsegrained limestones can be observed. Grain contacts are mostly curvilinear in very fine-grained limestones but ar...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Textures and Microstructures
سال: 1996
ISSN: 0730-3300
DOI: 10.1155/tsm.26-27.181