Copyright © 2023 The Author(s): This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY-NC 4.0) which permits unrestricted use, distribution, and reproduction in any medium for non-commercial use provided the original author and source are credited. International Journal of Scientific Research in Science and Technology Available online at : www.ijsrst.com Print ISSN: 2395-6011 | Online ISSN: 2395-602X doi : https://doi.org/10.32628/IJSRST52310537 693 Tensile Strength Enhancement Via Heat Treatment In Directly Recycled Aluminium Alloy (AA6065) Suryakant, Dr Mahendra Yadav Department of Physics, Rama Bai Government Women P. G. College, Akbarpur, Ambedkar Nagar, Uttar Pradesh, India A R T I C L E I N F O A B S T R A C T Article History: Accepted: 07 Sep 2023 Published: 22 Sep 2023 Products made through solid-state recycling of aluminum chips in a hot extrusion process were regulated by temperature-related factors by utilizing a preheating temperature of 350 °C, 400 °C, and 450 °C for one hour, two hours, and three hours of preheating time, respectively. Design of Experiments (DOE) was used, and the findings showed that the preheating temperature is more significant to manage than the preheating duration, and that increasing the temperature led to a high tensile strength. This conclusion was reached as a result of the experiments. The profile that was extruded for three hours at 550 degrees Celsius had reached the ideal condition for achieving the highest possible tensile strength. The heat treatment was carried out with the solution temperature set at 450 degrees Celsius for two hours, and the ageing procedure was carried out at 195 degrees Celsius for three hours. The extruded specimen underwent heat treatment, which resulted in a considerable increase in its tensile strength. Keywords : Tensile Strength, Aluminum alloy (AA6065), Correlation and Regression Publication Issue Volume 10, Issue 5 September-October-2023 Page Number 241-246 1. INTRODUCTION Due to its low density, high corrosion resistance, and exceptional mechanical qualities, aluminium and its alloys are a vital material in many different types of manufacturing. Recycling aluminium has received a lot of attention as an environmentally responsible way to lessen the exhaustion of natural resources and the use of energy in original aluminium production. More and more attention in the field of aluminium recycling is being paid to direct recycling, which entails reusing scrap aluminium alloys without subjecting them to intensive reprocessing. While there is no doubt that direct recycling can help lessen our ecological footprint, it also raises concerns regarding the tensile strength and other mechanical properties of recycled alloys. Because of its balanced composition of aluminium, magnesium, and silicon, which provides a favourable combination of strength and corrosion resistance, aluminium alloy 6065 is a popular choice in a wide variety of applications. However, research into how