Investigation of the Flow Behaviour of Martensitic Steel at Elevated Temperatures Via Uniaxial Tensile Tests
In recent years, advanced high strength steels have been the main choice of automobile manufacturers due to their excellent strengths and decent formability. In this study, the forming behaviour of a martensitic steel (MART 1200) at elevated temperatures, where higher formability and an acceptable s...
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| Language: | English |
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Polish Academy of Sciences
2025-06-01
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| Series: | Archives of Metallurgy and Materials |
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| Online Access: | https://journals.pan.pl/Content/135515/AMM-2025-2-14-Sen.pdf |
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| author | N. Sen T. Civek O. Elkoca E. Çevik |
| author_facet | N. Sen T. Civek O. Elkoca E. Çevik |
| author_sort | N. Sen |
| collection | DOAJ |
| description | In recent years, advanced high strength steels have been the main choice of automobile manufacturers due to their excellent strengths and decent formability. In this study, the forming behaviour of a martensitic steel (MART 1200) at elevated temperatures, where higher formability and an acceptable strength can be achieved, has been investigated. For this purpose, tensile test experiments have been conducted at room temperature, 175°C, 275°C, 375°C and 475°C in two different strain rates (0.005 s–1, 0.05 s–1). The flow behaviour, elongation capacity, strain rate sensitivity, strain hardening and strain hardening rate of MART1200 have been investigated and fracture surfaces and microstructures have been examined by scanning electron microscope. It has been shown that the strain rate sensitivity of MART1200 increases significantly after 275°C and, for the higher strain rate, a significant improvement up to 80% in the elongation capacity has been achieved in return for a 19% strength reduction at 375°C. |
| format | Article |
| id | doaj-art-b7beebc19e2a4f788cf30b9736ea75ad |
| institution | Kabale University |
| issn | 2300-1909 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj-art-b7beebc19e2a4f788cf30b9736ea75ad2025-08-20T03:31:21ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092025-06-01vol. 70No 2651661https://doi.org/10.24425/amm.2025.153466Investigation of the Flow Behaviour of Martensitic Steel at Elevated Temperatures Via Uniaxial Tensile TestsN. Sen0https://orcid.org/0000-0002-6501-5858T. Civek1https://orcid.org/0000-0002-1487-5903O. Elkoca2https://orcid.org/0000-0002-0007-0741E. Çevik3https://orcid.org/0000-0002-4863-8762Duzce University, Faculty of Engineering, Department of Mechanical Engineering, 81620 Duzce, TurkeyDuzce University, Faculty of Engineering, Department of Mechanical Engineering, 81620 Duzce, TurkeyDuzce University, Faculty of Engineering, Department of Mechanical Engineering, 81620 Duzce, TurkeyKarabuk University, Faculty of Engineering, Department of Mechanical Engineering, 78050 Karabuk, TurkeyIn recent years, advanced high strength steels have been the main choice of automobile manufacturers due to their excellent strengths and decent formability. In this study, the forming behaviour of a martensitic steel (MART 1200) at elevated temperatures, where higher formability and an acceptable strength can be achieved, has been investigated. For this purpose, tensile test experiments have been conducted at room temperature, 175°C, 275°C, 375°C and 475°C in two different strain rates (0.005 s–1, 0.05 s–1). The flow behaviour, elongation capacity, strain rate sensitivity, strain hardening and strain hardening rate of MART1200 have been investigated and fracture surfaces and microstructures have been examined by scanning electron microscope. It has been shown that the strain rate sensitivity of MART1200 increases significantly after 275°C and, for the higher strain rate, a significant improvement up to 80% in the elongation capacity has been achieved in return for a 19% strength reduction at 375°C.https://journals.pan.pl/Content/135515/AMM-2025-2-14-Sen.pdfadvanced high strength steelmartensitic steelwarm formingflow behaviourtensile test |
| spellingShingle | N. Sen T. Civek O. Elkoca E. Çevik Investigation of the Flow Behaviour of Martensitic Steel at Elevated Temperatures Via Uniaxial Tensile Tests Archives of Metallurgy and Materials advanced high strength steel martensitic steel warm forming flow behaviour tensile test |
| title | Investigation of the Flow Behaviour of Martensitic Steel at Elevated Temperatures Via Uniaxial Tensile Tests |
| title_full | Investigation of the Flow Behaviour of Martensitic Steel at Elevated Temperatures Via Uniaxial Tensile Tests |
| title_fullStr | Investigation of the Flow Behaviour of Martensitic Steel at Elevated Temperatures Via Uniaxial Tensile Tests |
| title_full_unstemmed | Investigation of the Flow Behaviour of Martensitic Steel at Elevated Temperatures Via Uniaxial Tensile Tests |
| title_short | Investigation of the Flow Behaviour of Martensitic Steel at Elevated Temperatures Via Uniaxial Tensile Tests |
| title_sort | investigation of the flow behaviour of martensitic steel at elevated temperatures via uniaxial tensile tests |
| topic | advanced high strength steel martensitic steel warm forming flow behaviour tensile test |
| url | https://journals.pan.pl/Content/135515/AMM-2025-2-14-Sen.pdf |
| work_keys_str_mv | AT nsen investigationoftheflowbehaviourofmartensiticsteelatelevatedtemperaturesviauniaxialtensiletests AT tcivek investigationoftheflowbehaviourofmartensiticsteelatelevatedtemperaturesviauniaxialtensiletests AT oelkoca investigationoftheflowbehaviourofmartensiticsteelatelevatedtemperaturesviauniaxialtensiletests AT ecevik investigationoftheflowbehaviourofmartensiticsteelatelevatedtemperaturesviauniaxialtensiletests |