| Autor: |
Pessanha, Everton Maick Rangel, Matlakhova, Lioudmila Aleksandrovna, Paes Junior, Herval Ramos, Rodriguez, Ruben Jesus Sanchez, Candido, Veronica Scarpini, Monteiro, Sergio Neves |
| Zdroj: |
Materials Science Forum; January 2014, Vol. 775 Issue: 1 p733-737, 5p |
| Abstrakt: |
Changes in the structure and properties of a TiNi alloy, which possesses shape memory effect by means of reversible martensitic transformation (RMT), after annealing at different temperatures in the interval of 300 to 550oC, were investigated. These changes were characterized by chemical analysis, X-ray diffraction, electrical resistivity, microhardness and differential scanning calorimetry. The results showed that the as-fabricated TiNi alloy presented a multiphase structure. An additional high temperature phase was revealed upon 550oC annealing. The alloy displayed sensible changes in its electrical resistivity that were attributed to the influence of the several existing phases. A tendency for the increase in the RMT critical temperatures was also observed with increasing annealing temperature. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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