caa a22 4500 388018518 CHVBK 20180307124917.0 cr unu---uuuuu 161130e199811 xx s 000 0 eng 10.1557/JMR.1998.0417 doi S0884291400046513 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0417 Hydrogen embrittlement of B-doped Ni3Al-based alloy [Elektronische Daten] Environmental and internal-hydrogen embrittlements in stress-relieved and recrystallized Ni−16.5Al−8Cr−0.8Hf−0.1B−0.03Y (at. %) have been studied. The stress-relieved Ni3Al-based alloy showed environmental embrittlement when tested in air or in hydrogen gas. The embrittlement is more severe in hydrogen gas than that in air. The recrystallized Ni3Al-based alloy was not susceptible to air, but it was embrittled severely by hydrogen gas and exhibited not only a grain interior but a severer grain boundary embrittlement. When tested in air, the stress-relieved Ni3Al was insensitive to internal hydrogen; however, the recrystallized Ni3Al showed a certain susceptibility to internal hydrogen. With increasing the internal hydrogen content in the alloy, the ductility of the recrystallized Ni3Al decreased steadily and a certain degree of grain boundary embrittlement was observed. Copyright © Materials Research Society 1998 Su Jian-Qing Liaoning Key Laboratory for Materials and Hydrogen, Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China Gao Shu-Jun Liaoning Key Laboratory for Materials and Hydrogen, Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China Hu Zhuang-Qi National Key Laboratory for RSA, Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China Journal of Materials Research Cambridge University Press 13/11(1998-11), 3052-3059 0884-2914 13:11<3052 1998 13 JMR https://doi.org/10.1557/JMR.1998.0417 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0417 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Su Jian-Qing Liaoning Key Laboratory for Materials and Hydrogen, Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China NATIONALLICENCE 700 1- Gao Shu-Jun Liaoning Key Laboratory for Materials and Hydrogen, Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China NATIONALLICENCE 700 1- Hu Zhuang-Qi National Key Laboratory for RSA, Institute of Metal Research, Academia Sinica, Shenyang 110015, People's Republic of China NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/11(1998-11), 3052-3059 0884-2914 13:11<3052 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge