Comment on `Hydrogen solubility in a titanium aluminide alloy`

Journal Article · Fri Nov 15 00:00:00 EST 1996 · Scripta Materialia

DOI:https://doi.org/10.1016/1359-6462(96)00282-5· OSTI ID:415381

Thompson, A W ^[1]; Chu, W Y ^[2]; Williams, J C ^[3]

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1. Lawrence Berkeley National Lab., CA (United States)
2. Univ. of Science and Technology, Beijing (China). Dept. of Material Physics
3. General Electric Aircraft Engines, Cincinnati, OH (United States)

In a previous paper, experimental results on hydrogen solubility in a titanium aluminide alloy based on Ti{sub 3}Al, with the composition Ti-24 Al-11 Nb (at. pct.), or Ti-24-11, were reported. Because of the interest in this topic, it is desirable to correct errors in that paper. To compare the earlier data with subsequent charging experiments, some thirty data points are added (some of which overlap plotted points), on Ti{sub 3}Al, on Ti-24-11 and on various microstructures of Ti-25 Al-10 Nb-3 V-1 Mo (Ti-25-10-3-1). It should be emphasized that the charging experiments used to obtain the data were found to be fully reversible, as was the case in the previous work, and that hydrogen content was measured by microbalance methods. A fit to these data yields an activation energy of {minus}25 kJ/mole H, as shown by the solid line.

• OSTI ID: 415381
• Journal Information: Scripta Materialia, Vol. 35, Issue 10; Other Information: PBD: 15 Nov 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TITANIUM ALLOYS
SORPTIVE PROPERTIES
ALUMINIUM ALLOYS
NIOBIUM ALLOYS
VANADIUM ALLOYS
MOLYBDENUM ALLOYS
HYDROGEN
SOLUBILITY
INTERMETALLIC COMPOUNDS
CHEMICAL COMPOSITION
WEIGHT MEASUREMENT
ACTIVATION ENERGY