Bauschinger Effect of Polycrystals and Mutual Restriction between Grains
نویسندگان
چکیده
منابع مشابه
Mesoscale Theory of Grains and Cells: Polycrystals & Plasticity
Solids with spatial variations in the crystalline axes naturally evolve into cells or grains separated by sharp walls. Such variations are mathematically described using the Nye dislocation density tensor. At high temperatures, polycrystalline grains form from the melt and coarsen with time; the dislocations can both climb and glide. At low temperatures under shear the dislocations (which allow...
متن کاملBauschinger effect in thin metal films
The Bauschinger effect in thin sputter-deposited Al and Cu films is studied by isothermally deforming the films alternately in tension and compression. Passivated films exhibit an unusual Bauschinger effect with reverse flow already occurring on unloading, while unpassivated films show little or no reverse flows when the film is fully unloaded. 2005 Acta Materialia Inc. Published by Elsevier Lt...
متن کاملMode-converted ultrasonic scattering in polycrystals with elongated grains.
Elastic wave scattering is used to study polycrystalline media for a wide range of applications. Received signals, which include scattering from the randomly oriented grains comprising the polycrystal, contain information from which useful microstructural parameters may often be inferred. Recently, a mode-converted diffuse ultrasonic scattering model was developed for evaluating the scattered r...
متن کاملTwo-dimensional rigid polycrystals whose grains have one ductile direction
We consider polycrystals with perfectly plastic grains. We study the two-dimensional problem that results if the textures and applied stresses are compatible with antiplane deformation. We show that the order of magnitude of recently introduced outer bounds on the strength domain of polycrystals is sharp even under the assumption of square symmetry on the texture. We also conclude that the fact...
متن کاملeffect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars
این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...
ذخیره 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: Transactions of the Japan Society of Mechanical Engineers
سال: 1977
ISSN: 0029-0270,2185-9485
DOI: 10.1299/kikai1938.43.1210