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Investigation on the influence of heat treatment of mechanical behavior enhancement of a356 alloy

In this present work, A356 aluminum alloy is heat treated with the addition of copper, rare earth and strontium were investigated. T6 treatment is preferred in this work (solution at 535°C for 4h + aging at 150°C for 15h) when compared to other heat treatment processes (i.e short heat treatment processes). | Investigation on the influence of heat treatment of mechanical behavior enhancement of a356 alloy International Journal of Mechanical Engineering and Technology IJMET Volume 10 Issue 03 March 2019 pp. 1088-1093. Article ID IJMET_10_03_110 Available online at http www.iaeme.com ijmet issues.asp JType IJMET amp VType 10 amp IType 3 ISSN Print 0976-6340 and ISSN Online 0976-6359 IAEME Publication Scopus Indexed INVESTIGATION ON THE INFLUENCE OF HEAT TREATMENT OF MECHANICAL BEHAVIOR ENHANCEMENT OF A356 ALLOY J.Baskaran and Raghuvaran P Assistant Professor Sri Krishna College of Engineering and Technology Coimbatore Tamil Nadu India Ramakrishnan C Renga Prashad A and Monish Kumar R UG Scholars Department of Mechanical Engineering Sri Krishna College of Engineering and Technology Coimbatore Tamil Nadu India ABSTRACT In this present work A356 aluminum alloy is heat treated with the addition of copper rare earth and strontium were investigated. T6 treatment is preferred in this work solution at 535 C for 4h aging at 150 C for 15h when compared to other heat treatment processes i.e short heat treatment processes . The effects of heat treatment on microstructure and tensile properties of the Al-7 Si-0.3 Mg alloys were investigated by optical microscopy and tension test. It is found that a 2h solution at 550 C is sufficient to make homogenization and saturation of magnesium and silicon in Al phase spheroid of eutectic Si phase. Followed by solution a 2h artificial aging at 170 C is almost enough to produce hardening precipitates. Those samples treated with T6 achieve the maximum tensile strength and fracture elongation. With short time treatment ST samples can reach 90 of the maximum yield strength 95 of the maximum strength and 80 of the maximum elongation. Key words Al-Si casting alloys Heat treatment tensile test Microstructural evaluation. Cite this Article J.Baskaran Raghuvaran P Ramakrishnan C Renga Prashad A and Monish Kumar R Investigation on the Influence of Heat .