New useful function of hydrogen in materials
| Autor: | Atsunori Kamegawa, Jun Nakahigashi, Miho Yamauchi, Asaya Fujita, Masuo Okada |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Hydrogen Spinodal decomposition Mechanical Engineering Metallurgy Alloy Metals and Alloys chemistry.chemical_element Superplasticity Magnetostriction engineering.material Catalysis Chemical engineering chemistry Mechanics of Materials Electrical resistivity and conductivity Ultimate tensile strength Materials Chemistry engineering |
| Zdroj: | Journal of Alloys and Compounds. 580:S401-S405 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2013.03.225 |
| Popis: | Useful functions of hydrogen in materials are studied. (a) Simultaneous improvements of electrical conductivity and mechanical strength for Cu–3mass%Ti hydrogenated alloy were achieved. The hydrogenation reaction proceeds within the range of spinodal decomposition temperature, and then the tensile strength of the alloy was increased. (b) Hydrogen-treatment for a β-rich α + β type Ti–4.5Al–3V–2Mo–2Fe alloy yields the fine grain with the size of about 0.3 μm. This alloy exhibited the high superplastic elongation of 10,600% at 923 K. (c) Pressure induced magnetic phase transition of hydrogenated La(Fe x Si 1− x ) 13 compounds was applied to magnetostrictive stress-sensor. (d) Ordering and Catalytic activity of CuPd nanoalloys are promoted by hydrogen treatment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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