Details
| Original language | English |
|---|---|
| Pages (from-to) | 17-26 |
| Number of pages | 10 |
| Journal | Materials Science and Engineering A |
| Volume | 191 |
| Issue number | 1-2 |
| Publication status | Published - 1 Feb 1995 |
| Externally published | Yes |
Abstract
The effects of low activity hydrogen charging on the mechanical properties were studied in a low alloy spheroidized steel. Hydrogen charging was done either from the gas phase or from electrolytic solution. Monotonic tensile tests and microstructural observations both indicated that hydrogen-dislocation interactions are important. The results showed that hydrogen is accumulated during plastic deformation by dislocation sweep-in. Further, the presence of hydrogen was observed to lead to enhanced plasticity and damage localization. It is inferred that depending on the hydrogen concentration locally accumulated hydrogen can assist both void nucleation at internal interfaces by lowering of the cohesive forces and void growth by strain localization.
Keywords
- Alloys, Fracture, Hydrogen, Steels
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Materials Science and Engineering A, Vol. 191, No. 1-2, 01.02.1995, p. 17-26.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Effects of hydrogen on ductile fracture of a spheroidized low alloy steel
AU - Maier, H. J.
AU - Popp, W.
AU - Kaesche, H.
N1 - Funding Information: The authors would like to thank Dr. M. Meier for helpful discussions. Financial support of this work by Deutsche Forschungsgemeinschaft is gratefully acknowledged.
PY - 1995/2/1
Y1 - 1995/2/1
N2 - The effects of low activity hydrogen charging on the mechanical properties were studied in a low alloy spheroidized steel. Hydrogen charging was done either from the gas phase or from electrolytic solution. Monotonic tensile tests and microstructural observations both indicated that hydrogen-dislocation interactions are important. The results showed that hydrogen is accumulated during plastic deformation by dislocation sweep-in. Further, the presence of hydrogen was observed to lead to enhanced plasticity and damage localization. It is inferred that depending on the hydrogen concentration locally accumulated hydrogen can assist both void nucleation at internal interfaces by lowering of the cohesive forces and void growth by strain localization.
AB - The effects of low activity hydrogen charging on the mechanical properties were studied in a low alloy spheroidized steel. Hydrogen charging was done either from the gas phase or from electrolytic solution. Monotonic tensile tests and microstructural observations both indicated that hydrogen-dislocation interactions are important. The results showed that hydrogen is accumulated during plastic deformation by dislocation sweep-in. Further, the presence of hydrogen was observed to lead to enhanced plasticity and damage localization. It is inferred that depending on the hydrogen concentration locally accumulated hydrogen can assist both void nucleation at internal interfaces by lowering of the cohesive forces and void growth by strain localization.
KW - Alloys
KW - Fracture
KW - Hydrogen
KW - Steels
UR - http://www.scopus.com/inward/record.url?scp=0029137252&partnerID=8YFLogxK
U2 - 10.1016/0921-5093(94)09623-5
DO - 10.1016/0921-5093(94)09623-5
M3 - Article
AN - SCOPUS:0029137252
VL - 191
SP - 17
EP - 26
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
IS - 1-2
ER -