Design of (Nb, Mo)40Ti30Ni30 alloy membranes for combined enhancement of hydrogen permeability and embrittlement resistance
Abstract The effect of substitution of Nb by Mo in Nb40Ti30Ni30 was investigated with respect to microstructural features and hydrogen dissolution, diffusion and permeation. As-cast Nb40−xMoxTi30Ni30 (x = 0, 5, 10) alloys consist of primary bcc-Nb phase and binary eutectic (bcc-Nb + B2-TiNi). The su...
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Nature Portfolio
2017
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oai:doaj.org-article:c5f365c387f74d2caa97760fdbe96d1e2021-12-02T16:08:23ZDesign of (Nb, Mo)40Ti30Ni30 alloy membranes for combined enhancement of hydrogen permeability and embrittlement resistance10.1038/s41598-017-00335-02045-2322https://doaj.org/article/c5f365c387f74d2caa97760fdbe96d1e2017-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00335-0https://doaj.org/toc/2045-2322Abstract The effect of substitution of Nb by Mo in Nb40Ti30Ni30 was investigated with respect to microstructural features and hydrogen dissolution, diffusion and permeation. As-cast Nb40−xMoxTi30Ni30 (x = 0, 5, 10) alloys consist of primary bcc-Nb phase and binary eutectic (bcc-Nb + B2-TiNi). The substitution of Nb by Mo reduces the hydrogen solubility in alloys, but may increase (x = 5) or decrease (x = 10) the apparent hydrogen diffusivity and permeability. As-cast Nb35Mo5Ti30Ni30 exhibits a combined enhancement of hydrogen permeability and embrittlement resistance as compared to Nb40Ti30Ni30. This work confirms that Mo is a desirable alloying element in Nb that can contribute to a reduction in hydrogen absorption and an increase in intrinsic hydrogen diffusion, thus improving embrittlement resistance with minimal permeability penalty.Xinzhong LiXiao LiangDongmei LiuRuirun ChenFeifei HuangRui WangMarkus RettenmayrYanqing SuJingjie GuoHengzhi FuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017) |
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Medicine R Science Q Xinzhong Li Xiao Liang Dongmei Liu Ruirun Chen Feifei Huang Rui Wang Markus Rettenmayr Yanqing Su Jingjie Guo Hengzhi Fu Design of (Nb, Mo)40Ti30Ni30 alloy membranes for combined enhancement of hydrogen permeability and embrittlement resistance |
| description |
Abstract The effect of substitution of Nb by Mo in Nb40Ti30Ni30 was investigated with respect to microstructural features and hydrogen dissolution, diffusion and permeation. As-cast Nb40−xMoxTi30Ni30 (x = 0, 5, 10) alloys consist of primary bcc-Nb phase and binary eutectic (bcc-Nb + B2-TiNi). The substitution of Nb by Mo reduces the hydrogen solubility in alloys, but may increase (x = 5) or decrease (x = 10) the apparent hydrogen diffusivity and permeability. As-cast Nb35Mo5Ti30Ni30 exhibits a combined enhancement of hydrogen permeability and embrittlement resistance as compared to Nb40Ti30Ni30. This work confirms that Mo is a desirable alloying element in Nb that can contribute to a reduction in hydrogen absorption and an increase in intrinsic hydrogen diffusion, thus improving embrittlement resistance with minimal permeability penalty. |
| format |
article |
| author |
Xinzhong Li Xiao Liang Dongmei Liu Ruirun Chen Feifei Huang Rui Wang Markus Rettenmayr Yanqing Su Jingjie Guo Hengzhi Fu |
| author_facet |
Xinzhong Li Xiao Liang Dongmei Liu Ruirun Chen Feifei Huang Rui Wang Markus Rettenmayr Yanqing Su Jingjie Guo Hengzhi Fu |
| author_sort |
Xinzhong Li |
| title |
Design of (Nb, Mo)40Ti30Ni30 alloy membranes for combined enhancement of hydrogen permeability and embrittlement resistance |
| title_short |
Design of (Nb, Mo)40Ti30Ni30 alloy membranes for combined enhancement of hydrogen permeability and embrittlement resistance |
| title_full |
Design of (Nb, Mo)40Ti30Ni30 alloy membranes for combined enhancement of hydrogen permeability and embrittlement resistance |
| title_fullStr |
Design of (Nb, Mo)40Ti30Ni30 alloy membranes for combined enhancement of hydrogen permeability and embrittlement resistance |
| title_full_unstemmed |
Design of (Nb, Mo)40Ti30Ni30 alloy membranes for combined enhancement of hydrogen permeability and embrittlement resistance |
| title_sort |
design of (nb, mo)40ti30ni30 alloy membranes for combined enhancement of hydrogen permeability and embrittlement resistance |
| publisher |
Nature Portfolio |
| publishDate |
2017 |
| url |
https://doaj.org/article/c5f365c387f74d2caa97760fdbe96d1e |
| work_keys_str_mv |
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| _version_ |
1718384557866090496 |