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The degradation characteristics were assessed in vitro using immersion tests in simulated body fluid (SBF) at 37 \u00b1 1 \u00b0C, evaluating mass loss, pH variation that occurred in the solution, open circuit potential (OCP), linear and cyclic potentiometry (LP and CP), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and nano-FTIR. To obtain plates as samples, the cast materials were thermo-mechanically processed by hot rolling. Dynamic mechanical analysis (DMA) was employed to evaluate the thermal properties of the smart material. Atomic force microscopy (AFM) was used to show the nanometric and microstructural changes during the hot rolling process and DMA solicitations. The type of corrosion identified was generalized corrosion, and over the first 3\u20135 days, an increase in mass was observed, caused by the compounds formed at the metal\u2013solution interface. The formed compounds were identified mainly as oxides that passed into the immersion liquid. The degradation rate (DR) was obtained as a function of mass loss, sample surface area and immersion duration. The dynamic mechanical behavior and dimensions of the sample were evaluated after 14 days of immersion. The nanocompounds found on the surface after atmospheric corrosion and immersion in SBF were investigated with the Neaspec system using the nano-FTIR technique.<\/jats:p>","DOI":"10.3390\/nano14040330","type":"journal-article","created":{"date-parts":[[2024,2,8]],"date-time":"2024-02-08T03:36:17Z","timestamp":1707363377000},"page":"330","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Investigations on the Degradation Behavior of Processed FeMnSi-xCu Shape Memory Alloys"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8798-1849","authenticated-orcid":false,"given":"Ana-Maria","family":"Roman","sequence":"first","affiliation":[{"name":"Faculty of Materials Science and Engineering, \u201cGheorghe Asachi\u201d Technical University of Iasi, 41 Dimitrie Mangeron Blvd, 700050 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5128-4491","authenticated-orcid":false,"given":"Ramona","family":"Cimpoe\u0219u","sequence":"additional","affiliation":[{"name":"Faculty of Materials Science and Engineering, \u201cGheorghe Asachi\u201d Technical University of Iasi, 41 Dimitrie Mangeron Blvd, 700050 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5528-9177","authenticated-orcid":false,"given":"Bogdan","family":"Pricop","sequence":"additional","affiliation":[{"name":"Faculty of Materials Science and Engineering, \u201cGheorghe Asachi\u201d Technical University of Iasi, 41 Dimitrie Mangeron Blvd, 700050 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7297-6411","authenticated-orcid":false,"given":"Marius Mihai","family":"Cazacu","sequence":"additional","affiliation":[{"name":"Physics Department, \u201cGheorghe Asachi\u201d Technical University of Iasi, 59A Dimitrie Mangeron Blvd, 700050 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Georgeta","family":"Zegan","sequence":"additional","affiliation":[{"name":"Faculty of Dental Medicine, \u201cGrigore T. 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