Abstract
The terminal solid solubility (TSS) of hydrogen in zirconium alloys has a hysteresis. The TSS of hydrogen in Zircaloy-4 during cooling and heating were studied using differential scanning calorimetry (DSC) with a hydrogen content of 40-731 wppm. A significant hysteresis gap was observed between the TSS for dissolution (TSSD) and precipitation (TSSP). It was confirmed that the hydrogen dissolution temperature was unaffected by the previous thermal history in comparison with the hydride precipitation temperature. The TSSP temperature increased with a decrease in the maximum temperature, but a significant temperature gap remained even when the maximum temperature was equal to the TSSD temperature. The terminal solid solubility of hydrogen in Zircaloy-4 can be represented by the following equations. TSSD: C = 2.255 × 105 exp (-39101/RT).TSSP: C = 4.722 × 104 exp (-26843/RT).TSSP2: C = 8.612 × 105 exp (-30583/RT). Based on the experimental results hydrogen solubility path depending on the previous thermal history was proposed.
| Original language | English |
|---|---|
| Pages (from-to) | 16442-16449 |
| Number of pages | 8 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 39 |
| Issue number | 29 |
| DOIs | |
| State | Published - 2014 Oct 2 |
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Keywords
- Hydrogen
- Terminal solid solubility
- Thermal history
- Zircaloy-4
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Effect of thermal history on the terminal solid solubility of hydrogen in Zircaloy-4. / Kim, Ju Seong; Kim, Yongsoo.
In: International Journal of Hydrogen Energy, Vol. 39, No. 29, 02.10.2014, p. 16442-16449.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of thermal history on the terminal solid solubility of hydrogen in Zircaloy-4
AU - Kim, Ju Seong
AU - Kim, Yongsoo
PY - 2014/10/2
Y1 - 2014/10/2
N2 - The terminal solid solubility (TSS) of hydrogen in zirconium alloys has a hysteresis. The TSS of hydrogen in Zircaloy-4 during cooling and heating were studied using differential scanning calorimetry (DSC) with a hydrogen content of 40-731 wppm. A significant hysteresis gap was observed between the TSS for dissolution (TSSD) and precipitation (TSSP). It was confirmed that the hydrogen dissolution temperature was unaffected by the previous thermal history in comparison with the hydride precipitation temperature. The TSSP temperature increased with a decrease in the maximum temperature, but a significant temperature gap remained even when the maximum temperature was equal to the TSSD temperature. The terminal solid solubility of hydrogen in Zircaloy-4 can be represented by the following equations. TSSD: C = 2.255 × 105 exp (-39101/RT).TSSP: C = 4.722 × 104 exp (-26843/RT).TSSP2: C = 8.612 × 105 exp (-30583/RT). Based on the experimental results hydrogen solubility path depending on the previous thermal history was proposed.
AB - The terminal solid solubility (TSS) of hydrogen in zirconium alloys has a hysteresis. The TSS of hydrogen in Zircaloy-4 during cooling and heating were studied using differential scanning calorimetry (DSC) with a hydrogen content of 40-731 wppm. A significant hysteresis gap was observed between the TSS for dissolution (TSSD) and precipitation (TSSP). It was confirmed that the hydrogen dissolution temperature was unaffected by the previous thermal history in comparison with the hydride precipitation temperature. The TSSP temperature increased with a decrease in the maximum temperature, but a significant temperature gap remained even when the maximum temperature was equal to the TSSD temperature. The terminal solid solubility of hydrogen in Zircaloy-4 can be represented by the following equations. TSSD: C = 2.255 × 105 exp (-39101/RT).TSSP: C = 4.722 × 104 exp (-26843/RT).TSSP2: C = 8.612 × 105 exp (-30583/RT). Based on the experimental results hydrogen solubility path depending on the previous thermal history was proposed.
KW - Hydrogen
KW - Terminal solid solubility
KW - Thermal history
KW - Zircaloy-4
UR - http://www.scopus.com/inward/record.url?scp=84908027229&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2014.08.018
DO - 10.1016/j.ijhydene.2014.08.018
M3 - Article
AN - SCOPUS:84908027229
VL - 39
SP - 16442
EP - 16449
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 29
ER -