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...
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Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM),
2018.
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LEADER | 00000 am a22000003u 4500 | ||
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001 | repouitm_36335 | ||
042 | |a dc | ||
100 | 1 | 0 | |a Idris, Roslinda |e author |
700 | 1 | 0 | |a Abdullah, Shahrum |e author |
700 | 1 | 0 | |a Prakash, Thamburaja |e author |
700 | 1 | 0 | |a Omar, Mohd. Zaidi |e author |
245 | 0 | 0 | |a An experimental investigation of tensile properties and fatigue crack growth behaviour for Dual-Phase Steel / Roslinda Idris...[et al.] |
260 | |b Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM), |c 2018. | ||
500 | |a https://ir.uitm.edu.my/id/eprint/36335/1/36335.pdf | ||
520 | |a 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. | ||
546 | |a en | ||
690 | |a TJ Mechanical engineering and machinery | ||
655 | 7 | |a Article |2 local | |
655 | 7 | |a PeerReviewed |2 local | |
787 | 0 | |n https://ir.uitm.edu.my/id/eprint/36335/ | |
787 | 0 | |n https://jmeche.uitm.edu.my/ | |
856 | 4 | 1 | |u https://ir.uitm.edu.my/id/eprint/36335/ |z Link Metadata |