Abstract
We investigated the suppression mechanism of strain-age-hardening in a ferritic carbon steel associated with hydrogen uptake. We considered hydrogen-related three factors suppressing the strain aging: 1) solution softening, for instance, arising from a reduction in Peierls potential of screw dislocations and a change in Young's modulus, 2) suppression of dislocation-carbon/nitrogen interaction through hydrogen/carbon and nitrogen site competition, and 3) change in plastic strain evolution behavior by hydrogen-enhanced localized plasticity (HELP). According to the present experiments under in-situ hydrogen charging, it was concluded that the solution softening (factor1) and the site competition (factor2) by hydrogen did not significantly suppress the strain aging but the change in the pre-straining behavior (factor3) did.
| Original language | English |
|---|---|
| Pages (from-to) | 1656-1661 |
| Number of pages | 6 |
| Journal | isij international |
| Volume | 56 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Jan 1 2016 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
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Suppression mechanism of strain-age-hardening in carbon steel associated with hydrogen uptake. / Ogawa, Takuro; Koyama, Motomichi; Noguchi, Hiroshi.
In: isij international, Vol. 56, No. 9, 01.01.2016, p. 1656-1661.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Suppression mechanism of strain-age-hardening in carbon steel associated with hydrogen uptake
AU - Ogawa, Takuro
AU - Koyama, Motomichi
AU - Noguchi, Hiroshi
PY - 2016/1/1
Y1 - 2016/1/1
N2 - We investigated the suppression mechanism of strain-age-hardening in a ferritic carbon steel associated with hydrogen uptake. We considered hydrogen-related three factors suppressing the strain aging: 1) solution softening, for instance, arising from a reduction in Peierls potential of screw dislocations and a change in Young's modulus, 2) suppression of dislocation-carbon/nitrogen interaction through hydrogen/carbon and nitrogen site competition, and 3) change in plastic strain evolution behavior by hydrogen-enhanced localized plasticity (HELP). According to the present experiments under in-situ hydrogen charging, it was concluded that the solution softening (factor1) and the site competition (factor2) by hydrogen did not significantly suppress the strain aging but the change in the pre-straining behavior (factor3) did.
AB - We investigated the suppression mechanism of strain-age-hardening in a ferritic carbon steel associated with hydrogen uptake. We considered hydrogen-related three factors suppressing the strain aging: 1) solution softening, for instance, arising from a reduction in Peierls potential of screw dislocations and a change in Young's modulus, 2) suppression of dislocation-carbon/nitrogen interaction through hydrogen/carbon and nitrogen site competition, and 3) change in plastic strain evolution behavior by hydrogen-enhanced localized plasticity (HELP). According to the present experiments under in-situ hydrogen charging, it was concluded that the solution softening (factor1) and the site competition (factor2) by hydrogen did not significantly suppress the strain aging but the change in the pre-straining behavior (factor3) did.
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UR - http://www.scopus.com/inward/citedby.url?scp=84989233495&partnerID=8YFLogxK
U2 - 10.2355/isijinternational.ISIJINT-2016-063
DO - 10.2355/isijinternational.ISIJINT-2016-063
M3 - Article
VL - 56
SP - 1656
EP - 1661
JO - ISIJ International
JF - ISIJ International
SN - 0915-1559
IS - 9
ER -