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Effect of austempering temperature on microstructure and cyclic deformation behaviour of multiphase low-carbon steel
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 (Ms = 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.
Citations
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Authors (7)
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X. Y. Long
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Ricardo Branco
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Reza Masoudi Nejad
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Grzegorz Lesiuk
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Shun-Peng Zhu
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A. M. Amaro
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s43452-023-00735-2
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Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Archives of Civil and Mechanical Engineering
no. 23,
ISSN: 1644-9665 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Long X. Y., Branco R., Macek W., Masoudi Nejad R., Lesiuk G., Zhu S., Amaro A. M.: Effect of austempering temperature on microstructure and cyclic deformation behaviour of multiphase low-carbon steel// Archives of Civil and Mechanical Engineering -,iss. 3 (2023),
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s43452-023-00735-2
- Sources of funding:
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- COST_FREE
- Verified by:
- Gdańsk University of Technology
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