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

• Autorzy: Long X. Y. , Branco R. , Macek W. , Nejad R. Masoudi , Lesiuk G. , Zhu S. P. , Amaro A. M.

Identyfikatory

DOI

10.1007/s43452-023-00735-2

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

low-carbon steel; austempering temperature; low-cycle fatigue; fatigue behaviour

PL

stal niskowęglowa; hartowanie izotermiczne; zmęczenie niskocykliczne

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2023
• Tom: Vol. 23, no. 3
• Strony: art. no. e201, 2023
• Opis fizyczny: Bibliogr. 34 poz., rys., wykr.

Twórcy

autor

Long X. Y.

• State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
• Guangzhou University of Navigation, Guangzhou 510725, Guangdong, China

autor

Branco R.

• Department of Mechanical Engineering, CEMMPRE, University of Coimbra, Rua Luis Reis Santos, 3030-788 Coimbra, Portugal

autor

Macek W.

• Faculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, 11/12 Gabriela Narutowicza, 80-233 Gdansk, Poland

• https://orcid.org/0000-0001-9079-8877+

autor

Nejad R. Masoudi

• Faculty of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an, China

autor

Lesiuk G.

• Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Wroclaw, Poland

autor

Zhu S. P.

• School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China

autor

Amaro A. M.

• Department of Mechanical Engineering, CEMMPRE, University of Coimbra, Rua Luis Reis Santos, 3030-788 Coimbra, Portugal

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024)