The effect of cooling rate on structure and properties of a HSLA forging |
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| Affiliation: | 1. National Metallurgical Laboratory, Jamshedpur 831 007, India;2. Bengal Engineering College (a Deemed University), Howrah 711 103, India;1. College of Intelligent Equipment, Shandong University of Science and Technology, Taian, Shandong 270019, China;2. State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China;1. The State Key Laboratory of Rolling and Automation, Northeastern University, P.O. Box 105, No. 11, Lane 3, Wenhua Road, HePing District, Shenyang 110819, People׳s Republic of China;2. Department of Metallurgical and Materials Engineering, University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968-0521, USA;1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China;2. National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing, 100081, China;3. Materials Research Group, Department of Mechanical Engineering, University of Southampton, Southampton, SO17 1BJ, UK |
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| Abstract: | The mechanical properties along with microstructures of HSLA-80 steel, forged in two stages and subsequently cooled at three different cooling rates, were studied. The fastest cooling rate produced maximum strength due to formation of fine bainite and martensite where as intermediate cooling rate resulted in maximum toughness values owing to predominantly bainitic microstructure. |
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