Effect of Tempering and Baking on the Charpy Impact Energy of Hydrogen-Charged 4340 Steel

Tempered AISI 4340 steel was hydrogen charged and tested for impact energy. It was found that samples tempered above 468 °C (875 °F) and subjected to hydrogen charging exhibited lower impact energy values when compared to uncharged samples. No significant difference between charged and uncharged sam...

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Veröffentlicht in:	Journal of materials engineering and performance 2015-01, Vol.24 (1), p.329-337
Hauptverfasser:	Mori, K., Lee, E. W., Frazier, W. E., Niji, K., Battel, G., Tran, A., Iriarte, E., Perez, O., Ruiz, H., Choi, T., Stoyanov, P., Ogren, J., Alrashaid, J., Es-Said, O. S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Characterization and Evaluation of Materials Chemistry and Materials Science Corrosion and Coatings Engineering Design Materials Science Quality Control Reliability Safety and Risk Tribology
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Tempered AISI 4340 steel was hydrogen charged and tested for impact energy. It was found that samples tempered above 468 °C (875 °F) and subjected to hydrogen charging exhibited lower impact energy values when compared to uncharged samples. No significant difference between charged and uncharged samples tempered below 468 °C (875 °F) was observed. Neither exposure nor bake time had any significant effect on impact energy within the tested ranges.
ISSN:	1059-9495 1544-1024
DOI:	10.1007/s11665-014-1268-1