Martensita induzida por deformação a temperatura ambiente na liga de 3,5Ni 1V 13,8Al Cu com efeito, memória de forma

• Ano de defesa: 2008
• Autor(a) principal: Guedes, Nilmário Galdino
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal da Paraí­ba; BR; Engenharia Mecânica; Programa de Pós Graduação em Engenharia Mecânica; UFPB
• Palavras-chave em Português: Efeito memória de forma; Liga Cu-Al-Ni-V; Por esforço de tração; Memory Shape Effect; Alloy Cu-Al-Ni-V; For Traction Effort; CNPQ::ENGENHARIAS::ENGENHARIA MECANICA
• Link de acesso: https://repositorio.ufpb.br/jspui/handle/tede/5368

The presented work consists of a study for observation of the martensite kept in the transformation of martensite phase - austenite in a alloy of Ni - Al - V, with memory shape effect, into, a room temperature. We defined that the alloy with composition the 3,5% (in weigh) of nickel, presents better results when happens successive loading and downloading cancel though, 3,0% of deformation into a room temperature, back to austenite phase after retreat the load. Above 3,0% of deformation became evident the appearance of retrain martensite. For her identification it was necessary the development of on equipment to traction, as well as bodies of proofs dimensioned for that. The analyses were done through X rays diffraction of optical microscopy and rehearsal of traction.