Abstract
Samples of commercially pure iron were fatigued in the reverse bending mode in different environments including ultrahigh vacuum, oxygen and water vapor. Fatigue in ultrahigh vacuum produced a rumpled surface (without any prominent slip line) with cracks initiated along grain boundaries. In the presence of oxygen, fatigue generated well developed slip lines. Fatigue cracks were observed more along slip lines than grain boundaries. When the same sample was fatigued in both ultrahigh vacuum and oxygen in succession, the surface structure produced was dependent on the order in which the two environments were employed. Fatigue in water vapor suppressed the surface deformation to a large extent, and gave rise to grain sliding with occasional void formation along the grain boundaries. Possible reasons for these observations are discussed.
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© 1983 Martinus Nijhoff Publishers, The Hague
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Majumdar, D., Chung, YW. (1983). Effects of Environment on Fatigue Deformation of Iron. In: Sih, G.C., Provan, J.W. (eds) Defects, Fracture and Fatigue. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6821-9_29
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DOI: https://doi.org/10.1007/978-94-009-6821-9_29
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