From the microstructural examination, it was observed that 12% of B4C nanocomposites was having fine microstructure as compared to others. The hardness and strength were found to be maximum for 12 % B4C nanocomposites which impact strength was lowest for 12% micro composites. | Comparison of mechanical and microstructural examination of Al7075 composites reinforced with micro and nano B4C International Journal of Mechanical Engineering and Technology IJMET Volume 11 Issue 4 April 2020 pp. 08-15 Article ID IJMET_11_04_002 Available online at http ijmet JType IJMET amp VType 11 amp IType 4 ISSN Print 0976-6340 and ISSN Online 0976-6359 IAEME Publication COMPARISON OF MECHANICAL AND MICROSTRUCTURAL EXAMINATION OF AL7075 COMPOSITES REINFORCED WITH MICRO AND NANO B4C Krishna Mohan Singh and A. K. Chauhan Department of Mechanical Engineering KNIT Sultanpur . 228118 India ABSTRACT Due to the demand for lightweight materials in the field of automobiles aeronautics and some other application there is a need to develop lightweight materials. For the last few decades aluminum matrix composites are being developed in order to meet out the demand of the above-mentioned industries. aluminum the above lightweight material in the form of composites of B4C reinforced in Al7075 alloy is considered for the present investigation. The composite was produced using the stir casting method. In this investigation the micro and nano B4C particles were used as reinforcements. The fabricated composites were characterized for microstructure and mechanical properties. From the microstructural examination it was observed that 12 of B4C nanocomposites was having fine microstructure as compared to others. The hardness and strength were found to be maximum for 12 B4C nanocomposites which impact strength was lowest for 12 micro composites. Keywords Al7075 alloy B4Cp Stir casting and UTS. Cite this Article Krishna Mohan Singh and A. K. Chauhan Comparison of mechanical and microstructural examination of Al7075 composites reinforced with micro and nano B4C International Journal of Mechanical Engineering and Technology 11 4 2020 pp. 08-15 http IJMET JType IJMET amp VType 11 amp IType 4 1. INTRODUCTION Aluminum matrix .
