Browsing by Author "Matthews, L A"

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    Microstructure evolution in Ti-6A1-4V alloy during hydrogen dosing at elevated temperature
    (2011) Matthews, L A; Knutsen, R D
    Synopsis: The embrittlement of the Ti-6Al-4V alloy by hydrogen dosing at elevated temperature has been investigated. Metal coupons were subjected to isothermal treatments in a partial hydrogen atmosphere in the temperature range from 650ºC–950ºC and the degree of embrittlement after treatment was determined by dropweight impact testing. Embrittlement was found to be inversely related to reaction temperature as a result of the combined effects of greater hydrogen absorption and titanium hydride precipitation at the lower isothermal temperatures.
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    Open Access
    Microstructure evolution in Ti-6A1-4V alloy during hydrogen dosing at elevated temperature.
    (The Southern African Institute of Mining and Metallurgy, 2011) Matthews, L A; Knutsen, R D
    The embrittlement of the Ti-6Al-4V alloy by hydrogen dosing at elevated temperature has been investigated. Metal coupons were subjected to isothermal treatments in a partial hydrogen atmosphere in the temperature range from 650ºC-950ºC and the degree of embrittlement after treatment was determined by dropweight impact testing. Embrittlement was found to be inversely related to reaction temperature as a result of the combined effects of greater hydrogen absorption and titanium hydride precipitation at the lower isothermal temperatures.