B4C TAKVİYELİ MAGNEZYUM (AZ91) MATRİSLİ KOMPOZİTLERİN MİKROYAPISAL KARAKTERİZASYONU
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چکیده
منابع مشابه
Oxide Film and Porosity Defects in Magnesium Alloy Az91
Porosity is a major concern in the production of light metal parts. This work aims to identify some of the mechanisms of microporosity formation in magnesium alloy AZ91. Microstructure analysis was performed on several samples obtained from gravity-poured ingots in graphite plate molds. Temperature data during cooling was acquired with type K thermocouples at 60 Hz at three locations of each ca...
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Due to the large thermal neutron absorption cross section of 10B, B4C-Al composites have been used as neutron absorbing materials in nuclear industries, which can offer not only good neutron shielding performance but also excellent mechanical properties. The distribution of B4C particles affects the mechanical performance and efficiency of the thermal neutron absorption of the composite materia...
متن کاملHardness and friction of N: and Al+ implanted B4C
Surfaces of boron carbide (B4C) were implanted with 200 keV N: or 100 keV AI + ions to a dose of 8 x 10” cm‘. Ultralow load indentation via the Nanoindenter was used to determine the changes in surface hardness and elastic modulus following implantation. A pin-on-disk testing device in ultrahigh vacuum was used for measuring changes in friction and wear of the implanted disks. Results of hardne...
متن کاملEffects of Aluminum Sputtering on the Corrosion Resistance of Az91 Alloy Wpływ Glinu Nanoszonego Metodą Rozpylania Jonowego Na Odporność Stopu Az91 Na Korozję
The corrosion resistance of a Magnesium alloy is low and needs to be improved. This research aimed at corrosion-resistance improvement by supatterd deposition aluminium film, which is formed on the surface of AZ91 Magnesium-alloy. Corrosion resistance performed polarization curve measurement, was evaluated in quest of the corrosion rate using the Tafel extrapolation method, and conducted surfac...
متن کاملComparison of Electrochemical Methods for the Evaluation of Cast AZ91 Magnesium Alloy
Linear polarization is a potentiodynamic method used for electrochemical characterization of materials. Obtained values of corrosion potential and corrosion current density offer information about material behavior in corrosion environments from the thermodynamic and kinetic points of view, respectively. The present study offers a comparison of applications of the linear polarization method (fr...
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ژورنال
عنوان ژورنال: Uluslararası Muhendislik Arastirma ve Gelistirme Dergisi
سال: 2019
ISSN: 1308-5514
DOI: 10.29137/umagd.388600