An experimental investigation of tensile properties and fatigue crack growth behaviour for Dual-Phase Steel / Roslinda Idris...[et al.]
This paper presents the fatigue crack growth behaviour of a dual-phase steel. The fatigue strength of dual-phase steels can be influenced by their inherent microstructural phases, where hard martensitic phases are dispersed in a soft ferritic matrix. The main objective of this study is to investigat...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM)
2018
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| Subjects: | |
| Online Access: | https://ir.uitm.edu.my/id/eprint/36335/ |
| _version_ | 1848809023730614272 |
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| author | Idris, Roslinda Abdullah, Shahrum Prakash, Thamburaja Omar, Mohd. Zaidi |
| author_facet | Idris, Roslinda Abdullah, Shahrum Prakash, Thamburaja Omar, Mohd. Zaidi |
| author_sort | Idris, Roslinda |
| building | UiTM Institutional Repository |
| collection | Online Access |
| description | This paper presents the fatigue crack growth behaviour of a dual-phase steel. The fatigue strength of dual-phase steels can be influenced by their inherent microstructural phases, where hard martensitic phases are dispersed in a soft ferritic matrix. The main objective of this study is to investigate the fatigue crack growth behaviour of a dual-phase steel. The dual-phase steel was achieved by inter-critical heat treatments which specifically aimed to increase the resistance of the steel to fatigue loading. The tensile properties of dual-phase steels have been studied through tensile testing methods, while their fatigue crack growth behaviours have been experimentally investigated using compact-tension specimen under constant amplitude loading. The experimental results indicated that the fatigue crack growths in as-received steels could propagate more freely than that in dual-phase steel microstructures; thereby giving dual-phase steels a longer fatigue life compared to the as-received steels. A crack growth of about 22 % lower was observed in the dual-phase specimens compared to the as-received specimens. Finally, the variation of fatigue crack growth rate with stress intensity factor range for as-received and dual-phase steels was discussed within the Paris region. It was concluded that the presence of second hard phases (martensite) in dual-phase steel effectively retarded crack growths. |
| first_indexed | 2025-11-14T23:08:01Z |
| format | Article |
| id | uitm-36335 |
| institution | Universiti Teknologi MARA |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T23:08:01Z |
| publishDate | 2018 |
| publisher | Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uitm-363352020-11-09T07:34:51Z https://ir.uitm.edu.my/id/eprint/36335/ An experimental investigation of tensile properties and fatigue crack growth behaviour for Dual-Phase Steel / Roslinda Idris...[et al.] jmeche Idris, Roslinda Abdullah, Shahrum Prakash, Thamburaja Omar, Mohd. Zaidi TJ Mechanical engineering and machinery This paper presents the fatigue crack growth behaviour of a dual-phase steel. The fatigue strength of dual-phase steels can be influenced by their inherent microstructural phases, where hard martensitic phases are dispersed in a soft ferritic matrix. The main objective of this study is to investigate the fatigue crack growth behaviour of a dual-phase steel. The dual-phase steel was achieved by inter-critical heat treatments which specifically aimed to increase the resistance of the steel to fatigue loading. The tensile properties of dual-phase steels have been studied through tensile testing methods, while their fatigue crack growth behaviours have been experimentally investigated using compact-tension specimen under constant amplitude loading. The experimental results indicated that the fatigue crack growths in as-received steels could propagate more freely than that in dual-phase steel microstructures; thereby giving dual-phase steels a longer fatigue life compared to the as-received steels. A crack growth of about 22 % lower was observed in the dual-phase specimens compared to the as-received specimens. Finally, the variation of fatigue crack growth rate with stress intensity factor range for as-received and dual-phase steels was discussed within the Paris region. It was concluded that the presence of second hard phases (martensite) in dual-phase steel effectively retarded crack growths. Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2018 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/36335/1/36335.pdf Idris, Roslinda and Abdullah, Shahrum and Prakash, Thamburaja and Omar, Mohd. Zaidi (2018) An experimental investigation of tensile properties and fatigue crack growth behaviour for Dual-Phase Steel / Roslinda Idris...[et al.]. (2018) Journal of Mechanical Engineering (JMechE) <https://ir.uitm.edu.my/view/publication/Journal_of_Mechanical_Engineering_=28JMechE=29.html>, 15 (2). pp. 155-167. ISSN 1823-5514 ; 2550-164X https://jmeche.uitm.edu.my/ |
| spellingShingle | TJ Mechanical engineering and machinery Idris, Roslinda Abdullah, Shahrum Prakash, Thamburaja Omar, Mohd. Zaidi An experimental investigation of tensile properties and fatigue crack growth behaviour for Dual-Phase Steel / Roslinda Idris...[et al.] |
| title | An experimental investigation of tensile properties and fatigue crack growth behaviour for Dual-Phase Steel / Roslinda Idris...[et al.] |
| title_full | An experimental investigation of tensile properties and fatigue crack growth behaviour for Dual-Phase Steel / Roslinda Idris...[et al.] |
| title_fullStr | An experimental investigation of tensile properties and fatigue crack growth behaviour for Dual-Phase Steel / Roslinda Idris...[et al.] |
| title_full_unstemmed | An experimental investigation of tensile properties and fatigue crack growth behaviour for Dual-Phase Steel / Roslinda Idris...[et al.] |
| title_short | An experimental investigation of tensile properties and fatigue crack growth behaviour for Dual-Phase Steel / Roslinda Idris...[et al.] |
| title_sort | experimental investigation of tensile properties and fatigue crack growth behaviour for dual-phase steel / roslinda idris...[et al.] |
| topic | TJ Mechanical engineering and machinery |
| url | https://ir.uitm.edu.my/id/eprint/36335/ https://ir.uitm.edu.my/id/eprint/36335/ |