Phaniraj, M. P. Jang, Y. S. Kim, D. -I. Shim, J. -H. Lee, C. Y. Lee, D. L. 2024-01-20T19:04:47Z 2024-01-20T19:04:47Z 2021-09-02 2010-06 0267-0836 https://pubs.kist.re.kr/handle/201004/131425 Hot deformation behaviour of hypereutectoid steels (0.83-0.92%C) alloyed with 0-2%Al is investigated. Compression tests were carried out in the temperature range 1000-1100 degrees C at 0.1-10 s(-1) strain rates. The stress-strain curves are analysed using work hardening rate flow stress plots to determine the critical and peak stress and the corresponding strains associated with dynamic recrystallisation. The addition of Al increases the strain hardening rate and lowers the peak strain. There is an optimum content beyond which peak strain increases with Al addition. Phase diagram calculations show that the multiphase microstructure present during deformation is responsible for the non-linear effect of Al. The steady state stress is modelled using the sine hyperbolic constitutive equation, and the activation energy for deformation is determined. English MANEY PUBLISHING AUSTENITIC STAINLESS MICROALLOYED STEELS HIGH-TEMPERATURES FLOW-STRESS DEFORMATION STRAIN BEHAVIOR INITIATION RESTORATION DUCTILITY Dynamic recrystallisation in aluminium alloyed hypereutectoid steels under hot working conditions Article 10.1179/026708309X12454008169357 1 MATERIALS SCIENCE AND TECHNOLOGY, v.26, no.6, pp.714 - 719 MATERIALS SCIENCE AND TECHNOLOGY 26 6 714 719 scie scopus 000279459000015 2-s2.0-77954203018 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article AUSTENITIC STAINLESS MICROALLOYED STEELS HIGH-TEMPERATURES FLOW-STRESS DEFORMATION STRAIN BEHAVIOR INITIATION RESTORATION DUCTILITY Hypereutectoid steel Aluminium Dynamic recrystallisation Mean flow stress