Effects of thermo-mechanical process on phase transitions, hydrogen solubility and corrosion of Ta-modified Zr-1Nb alloys
Effects of thermo-mechanical process on phase transitions, hydrogen solubility and corrosion of Ta-modified Zr-1Nb alloys
复制标题
热机械过程对Ta变质Zr-1Nb合金相变、氢溶解度和腐蚀的影响
DOI:
10.1016/j.jnucmat.2021.153039
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发表时间:
2021
影响因子:
3.1
通讯作者:
Ferreirós P
中科院分区:
文献类型:
--
作者:
Ferreirós P
The feasibility of using Ta as a minor alloying element in Zr-1Nb alloys is addressed in terms of phase stability and resistance to corrosion of the microstructure obtained with the following two thermomechanical processes after a water quenching from β Z r: a) annealed at 570° C for 3840 h and b) a combination of intermediate annealing temperatures and cold rolled steps. Hydrogen solubility was also measured, but only in alloys with the first process. It was found, through calorimetric measurements, that an increase of Ta replacing Nb in the nominal alloy composition increases the α→(α+ β) phase transformation temperature in agreement with an estimated increase in the enthalpy of formation of the β N b/T a phase, Δ H β N b/T a f. As expected, the mass fraction of β N b/T a measured in the rolled alloys is lower. Further, this diminution is larger in the alloys containing Ta due to the lower mobility of Ta and higher Δ H β N b/T a f. The growth of the oxide layer in each alloy, at 400° C steam up to 14 days, follows the predictor calculated as the ratio between the atomic concentrations of Nb plus Ta in the alloy and Δ H β N b/T a f. A slight decrease in hydrogen solubility was observed at low Ta content in the alloy.
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影响因子:
6.2
作者:
D. Khatamian;V. C. Ling
通讯作者:
V. C. Ling
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
H. Okamoto
通讯作者:
H. Okamoto
影响因子:
8.3
作者:
Moorehead, Michael;Yu, Zefeng;Couet, Adrien
通讯作者:
Couet, Adrien
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
G. Neumann;C. Tuijn
通讯作者:
C. Tuijn
DOI:
--
发表时间:
1972
期刊:
影响因子:
--
作者:
M. Koiwa
通讯作者:
M. Koiwa