Stochastic Effect of Grain Elongation on Nanocrystalline Materials Strain and Strain Rate Produced by Accumulative Roll-Bonding and Equal Channel Angular Pressing
المؤلفون المشاركون
Sob, P. Baonhe
Alugongo, A. Alfayo
Tengen, T. Ba Bob
المصدر
Advances in Materials Science and Engineering
العدد
المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2017-06-12
دولة النشر
مصر
عدد الصفحات
9
الملخص EN
Severe plastic deformation techniques are acknowledged to produce elongated grains during fabrication of nanostructured materials.
Previous models relating grain size to mechanical properties considered only equivalent radius, thus ignoring other approaches of measuring grain sizes such as semiminor axis, semimajor axis, and major axis radii that determine true grain shape.
In this paper, stochastic models of nanomaterials mechanical properties that include the ignored parameters have been proposed.
The proposed models are tested with data from nanocrystalline aluminum samples.
The following facts were experimentally observed and also revealed by the models.
Grain elongates to a maximum value and then decreases with further grain refinement due to grain breakages.
Materials yield stress increases with elongation to a maximum and then decreases continuously.
The varying approaches of measuring grain radius reveal a common trend of Hall-Petch and Reverse Hall-Petch Relationship but with different critical grain sizes.
Materials with high curvature grains have more enhanced yield stress.
Reducing strain rates leads to materials with more enhanced yield stress, with critical strain rates values beyond which further reductions do not lead to yield stress enhancement.
It can be concluded that, by considering different approaches of measuring grain sizes, reasons for different yield stress for nanomaterials that were observed but could not be explained have been dealt with.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Sob, P. Baonhe& Alugongo, A. Alfayo& Tengen, T. Ba Bob. 2017. Stochastic Effect of Grain Elongation on Nanocrystalline Materials Strain and Strain Rate Produced by Accumulative Roll-Bonding and Equal Channel Angular Pressing. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1124244
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Sob, P. Baonhe…[et al.]. Stochastic Effect of Grain Elongation on Nanocrystalline Materials Strain and Strain Rate Produced by Accumulative Roll-Bonding and Equal Channel Angular Pressing. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1124244
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Sob, P. Baonhe& Alugongo, A. Alfayo& Tengen, T. Ba Bob. Stochastic Effect of Grain Elongation on Nanocrystalline Materials Strain and Strain Rate Produced by Accumulative Roll-Bonding and Equal Channel Angular Pressing. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1124244
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1124244
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر