Fatigue strength and fracture behavior of steels with and without interstitial carbon at room temperature in air
-
Mohammed Aminul Islam
and Yo Tomota
Abstract
In this study, fatigue performance and fracture behavior of interstitial-free, low carbon and phosphorus-added low carbon steels have been investigated by plane bending fatigue tests at room temperature in air. For all steels, fatigue tests were carried out at a frequency of 1000 cycles per minute, however, a limited number of specimens of low carbon steel were also tested at frequencies of 500 and 1500 cycles per minute. After all mechanical tests, fracture surfaces were cut and examined using scanning electron microscopy to identify the fracture features. At any applied stress level, low carbon steel showed better fatigue performance than interstitial-free steel, and phosphorus addition further improved the fatigue life of low carbon steel. Fractographic observations on fatigue fracture surfaces revealed transgranular fracture for low carbon steel and intergranular fracture for interstitial-free steel. Interestingly, addition of 0.12 wt.% of phosphorus in low carbon steel could not change the dominant transgranular fracture behavior of the steel.
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© 2007, Carl Hanser Verlag, München
Articles in the same Issue
- Contents
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- Comparison of the plastic strain distribution during equal-channel angular pressing (ECAP) using 2D and 3D FEM modeling
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- The influence of Nd on the corrosion behavior of electroless-deposited Fe–P
- Time-dependent directional solidification of binary Al–Cu alloys in the initial transient
- Effect of V2O5 doping on the microstructure and local composition of textured Sr0.4Ba0.6Nb2O6 ceramics
- Microstructure and mechanical properties of AZ91D alloy prepared by a semi-solid diecasting process
- Development of SMD 32.768 kHz tuning fork type crystals
- Notifications
- DGM News
Articles in the same Issue
- Contents
- Contents
- Basic
- Texture and microstructure evolution of ECAP processed AlMg1Mn0.14 alloy
- Modelling grain refinement in fcc metals during equal-channel angular pressing by route “C”
- Fabrication of high strength nanostructured aluminium alloys by hydrostatic extrusion
- Comparison of the plastic strain distribution during equal-channel angular pressing (ECAP) using 2D and 3D FEM modeling
- Deformation twins in ultrafine grained commercial aluminum
- Compressive behaviour of ultrafine-grained AA6063T6 over a wide range of strains and strain rates
- Grain refinement response during twist extrusion of an Al-0.13% Mg alloy
- Preparation of NiO–LiFeO2 solid solutions: the role of mechanical and thermal treatments
- Applied
- Fatigue strength and fracture behavior of steels with and without interstitial carbon at room temperature in air
- The influence of Nd on the corrosion behavior of electroless-deposited Fe–P
- Time-dependent directional solidification of binary Al–Cu alloys in the initial transient
- Effect of V2O5 doping on the microstructure and local composition of textured Sr0.4Ba0.6Nb2O6 ceramics
- Microstructure and mechanical properties of AZ91D alloy prepared by a semi-solid diecasting process
- Development of SMD 32.768 kHz tuning fork type crystals
- Notifications
- DGM News