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Hence, they were investigated by a multi-analytical approach, which allowed us to identify the compounds constituting the helmets and to make some considerations about their metallurgy, although all the metal was converted to degradation products. The helmets, originally made in bronze, have maintained their original shape because of copper sulphides formation. The observed differences in composition between the two helmets were attributed to the position modification, of one of them, into the seabed along centuries. For the first time, a microstructural investigation permits to reconstruct the history of the aging processes involved in the total oxidation of roman bronze helmet metal.<\/jats:p>","DOI":"10.1038\/s41598-021-02425-6","type":"journal-article","created":{"date-parts":[[2021,11,26]],"date-time":"2021-11-26T11:02:58Z","timestamp":1637924578000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Microstructure and phase composition of bronze Montefortino helmets discovered Mediterranean seabed to explain an unusual corrosion"],"prefix":"10.1038","volume":"11","author":[{"given":"Francesco","family":"Armetta","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria Luisa","family":"Saladino","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antonella","family":"Scherillo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eugenio","family":"Caponetti","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,11,26]]},"reference":[{"key":"2425_CR1","doi-asserted-by":"publisher","first-page":"67","DOI":"10.21014\/acta_imeko.v6i3.457","volume":"6","author":"R Pitonzo","year":"2017","unstructured":"Pitonzo, R. et al. 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