Electronic Resource
Microstructural investigation of Al-Mg/B4C composite deformed at elevated temperature
| العنوان: | Microstructural investigation of Al-Mg/B4C composite deformed at elevated temperature |
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| المؤلفون: | Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Universitat Politècnica de Catalunya. PROCOMAME - Processos de Conformació de Materials Metàl·lics, Rezayat, Mohammad, Parsa, M. H., Mirzadeh, Hamed, Cabrera Marrero, José M. |
| بيانات النشر: | 2018-09-30 |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | The microstructure evolution of Al-3wt.%Mg reinforced with 10¿vol% B4C during isothermal compression at temperatures ranging 300–500¿°C at strain rates of 0.001–10 s-1 was investigated by electron backscatter diffraction (EBSD). According to the results, at strain rates lower than 0.01 s-1 and temperatures higher than 400¿°C, the grain size distribution in the microstructure is uniform, dynamic recovery is the predominant softening mechanism and continues recrystallization through lattice rotation is responsible for grain refinement. However, during deformation at higher strain rates or lower temperatures, deformation zones appeared in special locations around particles where microstructure is formed by recovered and hardened grains, and particle stimulating nucleation leaded to partially discontinues dynamic recrystallization which in turns promoted finer average grain and sub-grain size than those in single phase Al-Mg alloy. Moreover, it was found that the variation of grain and sub-grain size with deformation parameters (Zener-Holloman parameter (Z)) can be described by a power law type equation rather than by an initially expected exponential expression. Peer Reviewed Postprint (author's final draft) |
| مصطلحات الفهرس: | Àrees temàtiques de la UPC::Enginyeria dels materials, Metallic composites, Electrons--Backscattering, Hot deformation, Al-Mg alloy, Metal matrix composite, Electron back scatter diffraction, Dynamic restoration, Compostos metàl·lics, Article |
| URL: | |
| الاتاحة: | Open access content. Open access content Open Access |
| ملاحظة: | 9 p. application/pdf English |
| Other Numbers: | HGF oai:upcommons.upc.edu:2117/118335 Rezayat, M., Parsa, M., Mirzadeh, H., Cabrera, J. Microstructural investigation of Al-Mg/B4C composite deformed at elevated temperature. "Journal of alloys and compounds", 30 Setembre 2018, vol. 763, p. 643-651. 0925-8388 10.1016/j.jallcom.2018.05.324 1045435119 |
| المصدر المساهم: | UNIV POLITECNICA DE CATALUNYA From OAIster®, provided by the OCLC Cooperative. |
| رقم الانضمام: | edsoai.on1045435119 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |