EFFECT OF ELECTRON BEAM WELDING ON FATIGUE CRACK GROWTH RATE IN AISI 4130 STEEL
Source abstract
Abstract
Abstract— The purpose of this study is to investigate the effect of electron beam welding parameters on fatigue crack growth rate in AISI 4130 steel. The welding method was carried out by using nonoscillation and oscillation electron beam patterns. In nonoscillation welding, the welding speed, was varied; in oscillation welding just the oscillation pattern and the oscillation frequency were varied. After welding, X‐ray inspection, metallography, fatigue crack growth tests and scanning electron microscopy were employed to characterize these specimens. From the results, the weld centerline solidification structure transforms from a longitudinal raft structure to an interlocked structure with increasing welding speed, and the fatigue crack growth rate increases slightly. The transverse oscillation pattern provides a lower fatigue crack growth rate than the longitudinal oscillation pattern. The higher oscillation frequency gives a lower fatigue crack growth resistence for the longitudinal oscillation pattern, but the opposite is the case for the transverse oscillation pattern.
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Research context
OpenAlex topics: Advanced Welding Techniques Analysis · Fatigue and fracture mechanics · Welding Techniques and Residual Stresses
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References (18)
Show source-provided references
1. Electron beam welding with the beam oscillated longitudinally
2. New high‐speed beam current control and deflection systems improve electron beam welding applications
3. Effects of process parameters on centerline solidification in EB welds
4. 10.1063/1.32230410.1063/1.322304 ↗
5. Electron beam welding—application and equipment improvements
6. Penetration mechanisms of electron beam welding and the spiking phenomenon
7. Mechanism in deep weld pools during electron beam welding
8. The movement of metal in the weld pool in electron beam welding
9. Electron beam welding industrial applications
10. Electron beam welding in heavy industry
11. Electron beam welding in production
12. Mechanical properties of EB welds in constructional high tension steel—report 1
13. Mechanical properties of EB welds in constructional high tension steels—report 3
14. Mechanical properties of EB welds in constructional high tension steels—report 4
15. Mechanical properties of EB welds in constructional high tension steels—report 5
16. The impact toughness of electron beam welds in tube steels
17. Fatigue resistance of electron beam welded joints in high strength steels
18. Electron beam welding of C/Mu steels—toughness and fatigue properties