Effect of austempering temperature on microstructure and cyclic deformation behaviour of multiphase low-carbon steel - Publikacja - MOST Wiedzy

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Effect of austempering temperature on microstructure and cyclic deformation behaviour of multiphase low-carbon steel

Abstrakt

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.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Archives of Civil and Mechanical Engineering nr 23,
ISSN: 1644-9665
Język:
angielski
Rok wydania:
2023
Opis bibliograficzny:
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:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s43452-023-00735-2
Źródła finansowania:
  • COST_FREE
Weryfikacja:
Politechnika Gdańska

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