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Effect of austempering temperature on microstructure and cyclic deformation behaviour of multiphase low-carbon steel
https://orcid.org/0000-0001-9079-8877
Abstract This paper examined the cyclic deformation behaviour of multiphase low-carbon steel that was subjected to austempering heat treatments at four temperatures (190 °C, 230 °C, 275 °C, and 315 °C) below the martensite start temperature (M s = 353 °C). The tests were conducted at room temperature, under fully reversed strain-controlled conditions, with strain amplitudes in the range 0.5–1.0%. The microstructure was observed by transmission electron microscopy, and the fracture surfaces were examined by scanning electron microscopy. The steel had a bainite/martensite microstructure, with increasing bainite content for higher austempering temperatures. Irrespective of the tested conditions, it strain-hardened during the first two cycles and then, strain-softened until failure. The austempering temperature did not significantly affect the stress-based, strain-based and energy-based relationships. However, lower austempering temperatures slightly improved the fatigue performance.
Effect of austempering temperature on microstructure and cyclic deformation behaviour of multiphase low-carbon steel
https://orcid.org/0000-0001-9079-8877
Abstract This paper examined the cyclic deformation behaviour of multiphase low-carbon steel that was subjected to austempering heat treatments at four temperatures (190 °C, 230 °C, 275 °C, and 315 °C) below the martensite start temperature (M s = 353 °C). The tests were conducted at room temperature, under fully reversed strain-controlled conditions, with strain amplitudes in the range 0.5–1.0%. The microstructure was observed by transmission electron microscopy, and the fracture surfaces were examined by scanning electron microscopy. The steel had a bainite/martensite microstructure, with increasing bainite content for higher austempering temperatures. Irrespective of the tested conditions, it strain-hardened during the first two cycles and then, strain-softened until failure. The austempering temperature did not significantly affect the stress-based, strain-based and energy-based relationships. However, lower austempering temperatures slightly improved the fatigue performance.
Effect of austempering temperature on microstructure and cyclic deformation behaviour of multiphase low-carbon steel
https://orcid.org/0000-0001-9079-8877
Abstract This paper examined the cyclic deformation behaviour of multiphase low-carbon steel that was subjected to austempering heat treatments at four temperatures (190 °C, 230 °C, 275 °C, and 315 °C) below the martensite start temperature (M s = 353 °C). The tests were conducted at room temperature, under fully reversed strain-controlled conditions, with strain amplitudes in the range 0.5–1.0%. The microstructure was observed by transmission electron microscopy, and the fracture surfaces were examined by scanning electron microscopy. The steel had a bainite/martensite microstructure, with increasing bainite content for higher austempering temperatures. Irrespective of the tested conditions, it strain-hardened during the first two cycles and then, strain-softened until failure. The austempering temperature did not significantly affect the stress-based, strain-based and energy-based relationships. However, lower austempering temperatures slightly improved the fatigue performance.
Effect of austempering temperature on microstructure and cyclic deformation behaviour of multiphase low-carbon steel
Archiv.Civ.Mech.Eng
Long, X. Y. (author) / Branco, R. (author) / Macek, W. (author) / Masoudi Nejad, R. (author) / Lesiuk, G. (author) / Zhu, S. P. (author) / Amaro, A. M. (author)
2023-07-14
Article (Journal)
Electronic Resource
English
| Springer Verlag | 2023
Microstructure-property relationship in bainitic steel: The effect of austempering
| British Library Online Contents | 2016
Microstructure-property relationship in bainitic steel: The effect of austempering
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Microstructure-property relationship in bainitic steel: The effect of austempering
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| British Library Online Contents | 2006