Effect of hydrogen and microstructure on fatigue crack propagation in a medium carbon steel

The effects of hydrogen on fatigue crack propagation are studied and compared with the effects observed earlier on crack initiation. The influence of the microstructure on the H enhancement of crack propagation is also discussed. SAE 1045 steel is used. It is shown that crack growth under fatigue co...

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Veröffentlicht in:	Materials science and engineering 1983-01, Vol.57 (2), p.L21-L25
Hauptverfasser:	McLaren, Thomas B., Thompson, Anthony W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Cross-disciplinary physics: materials science rheology Exact sciences and technology Fractures Materials science Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals, semimetals and alloys Metals. Metallurgy Physics Specific materials
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Zusammenfassung:	The effects of hydrogen on fatigue crack propagation are studied and compared with the effects observed earlier on crack initiation. The influence of the microstructure on the H enhancement of crack propagation is also discussed. SAE 1045 steel is used. It is shown that crack growth under fatigue conditions can be assisted by H without major effects on crack path or mode in spheroidized, pearlitic and martensitic microstructures. 16 ref.--C.J.H.
ISSN:	0025-5416
DOI:	10.1016/0025-5416(83)90222-7