EFFECT OF PRE-STRAIN ON FATIGUE PROPERITES IN LOW AND HIGH CARBON STEELS | ||||
| ERJ. Engineering Research Journal | ||||
| Article 1, Volume 23, Issue 4, October 2000, Page 1-13 PDF (354.92 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2000.71214 | ||||
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| Author | ||||
| A.M. ABO El-AINENE | ||||
| Prod. Eng. & Mach.Design Dept., Faculty of Eng., Menoufia University, Shebin El-Kom,Egypt. | ||||
| Abstract | ||||
| In this work, Fatigue tests have been performed to investigate the fatigue damage process for two kinds ofplain carbon steels, (low and high carbon steels) . The effect of pre-strain process on fatigue crack initiation and fatigue strength has been examined. The main results obtained are summarized as follows: (1) In the case of low carbon steel (0.15%C) , the fatigue limit of ~~'0% (non-pre-strained specimen) is higher than or equal to those of ~,=2% and %=5% prestrained specimens and lower than that of &,=8% pre-strained specimens. (2) In the case of high carbon steel (0.46%C), the fatigue limit of ~~'0% (non-pre-strained specimen) is higher than those of cp=2%, 5% and 8% pre-strained specimens . (3) Though the fatigue limits of pre-strained specimens are lower than those of non-pre-strained specimen , the fatigue limits increase according to the increasing of pre-strain percentage for both of tested material. | ||||
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