Effect of Cryolite on Microstructure of Insitu AlB2 Aluminium Metal Matrix Composites
Samuel Dayanand1, Satish Babu B2
1Samuel Dayanand, Department of Mechanical Engineering, Government Engineering College, Raichur (Karnataka), India.
2Dr. Satish Babu B, Department of Mechancial Engineering, Presidency University, Bengaluru (Karnataka), India.
Manuscript received on 21 July 2019 | Revised Manuscript received on 03 August 2019 | Manuscript Published on 10 August 2019 | PP: 940-943 | Volume-8 Issue-2S3 July 2019 | Retrieval Number: B11770782S319/2019©BEIESP | DOI: 10.35940/ijrte.B1177.0782S319
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Todays composite material have gained more popularity due to their improved properties over the conventional materials. In the present paper, insitu composites were fabricated via chemical reaction between molten aluminium alloy and halide salt KBF4 with cryolite at 8000C by stir casting method. The microstructures of the composite containing 3 and 5 wt. % of AlB2 reinforcement phase have been compared with the unreinforced aluminium alloy. The microstructure analysis shows clean AlB2 particles uniformly distributed throughout the matrix. With the increase in the AlB2 reinforcement, insitu composite show less agglomeration and recovery of boron is more when compared to the unmixed halide salt in the fabrication of inistu composites.
Keywords: Aluminium Diboride, Cryolite, Halide Salt, Insitu.
Scope of the Article: Metallurgy