TY - JOUR
T1 - Evaluation of hydrogen absorption properties of Ti-0.2 mass% Pd alloy in fluoride solutions
AU - Yokoyama, Ken'ichi
AU - Ogawa, Toshio
AU - Asaoka, Kenzo
AU - Sakai, Jun'ichi
PY - 2005/9/1
Y1 - 2005/9/1
N2 - The hydrogen absorption properties of Ti-0.2 mass% Pd (Ti-0.2Pd) alloy in 2.0% and 0.2% acidulated phosphate fluoride (APF) and neutral 2.0% NaF solutions (25 °C) has been evaluated by hydrogen thermal desorption analysis. During the early stage of immersion (120 h) in the 2.0% APF solution, the amount of absorbed hydrogen was lower than 500 mass ppm. A thermal desorption of hydrogen primary appearing with a peak at 500-600 °C and a broad desorption ranging from 100 to 400 °C were observed. In the 0.2% APF solution, the amount of absorbed hydrogen saturated at 100-200 mass ppm; the thermal desorption of hydrogen appeared with a single peak at 550 °C. In the 2.0% NaF solution, hydrogen absorption was negligible even after 1000 h of immersion, although corrosion pits were observed. The results of the present study suggest that the hydrogen absorption of Ti-0.2Pd alloy, as compared with commercial pure titanium, is suppressed in fluoride solutions.
AB - The hydrogen absorption properties of Ti-0.2 mass% Pd (Ti-0.2Pd) alloy in 2.0% and 0.2% acidulated phosphate fluoride (APF) and neutral 2.0% NaF solutions (25 °C) has been evaluated by hydrogen thermal desorption analysis. During the early stage of immersion (120 h) in the 2.0% APF solution, the amount of absorbed hydrogen was lower than 500 mass ppm. A thermal desorption of hydrogen primary appearing with a peak at 500-600 °C and a broad desorption ranging from 100 to 400 °C were observed. In the 0.2% APF solution, the amount of absorbed hydrogen saturated at 100-200 mass ppm; the thermal desorption of hydrogen appeared with a single peak at 550 °C. In the 2.0% NaF solution, hydrogen absorption was negligible even after 1000 h of immersion, although corrosion pits were observed. The results of the present study suggest that the hydrogen absorption of Ti-0.2Pd alloy, as compared with commercial pure titanium, is suppressed in fluoride solutions.
KW - Corrosion
KW - Fluoride
KW - Hydrogen embrittlement
KW - Ti-Pd alloy
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U2 - 10.1016/j.jallcom.2005.03.048
DO - 10.1016/j.jallcom.2005.03.048
M3 - Article
AN - SCOPUS:23844439222
SN - 0925-8388
VL - 400
SP - 227
EP - 233
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
IS - 1-2
ER -