On the Effect of Hydrogen on the Low-Temperature Elastic and Anelastic Properties of Ni-Ti-Based Alloys
| Autor: | J. Torrens-Serra, Sergey Kustov, Eduard Cesari, K. Sapozhnikov, Jan Van Humbeeck |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Hydrogen Alloy Thermodynamics Modulus chemistry.chemical_element shape memory alloy acoustic properties internal friction lattice defects hydrogen 02 engineering and technology engineering.material 01 natural sciences lcsh:Technology Article Phase (matter) 0103 physical sciences General Materials Science lcsh:Microscopy lcsh:QC120-168.85 010302 applied physics Strain (chemistry) lcsh:QH201-278.5 lcsh:T Metallurgy Shape-memory alloy 021001 nanoscience & nanotechnology Amplitude chemistry lcsh:TA1-2040 Martensite engineering lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 |
| Zdroj: | Materials, Vol 10, Iss 10, p 1174 (2017) Materials; Volume 10; Issue 10; Pages: 1174 Materials |
| ISSN: | 1996-1944 |
| Popis: | Linear and non-linear internal friction and the effective Young’s modulus of a Ni50.8Ti49.2 alloy have been studied after different heat treatments, affecting hydrogen content, over wide ranges of temperatures (13–300 K) and strain amplitudes (10−7–10−4 ) at frequencies near 90 kHz. It has been shown that the contamination of the alloy by hydrogen strongly affects the internal friction and Young’s modulus of the martensitic phase. Presence of hydrogen gives rise to a non-relaxation internal friction maximum due to a competition of two different temperature-dependent processes. The temperature position and height of the maximum depend strongly on the hydrogen content. We conclude that many of the internal friction peaks, reported earlier for differently treated Ni-Ti-based alloys, had the same origin as the present maximum. ispartof: Materials vol:10 issue:1174 pages:1-11 ispartof: location:Switzerland status: published |
| Databáze: | OpenAIRE |
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