{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T06:10:29Z","timestamp":1791871829642,"version":"4.3.4"},"reference-count":54,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2024,10,26]],"date-time":"2024-10-26T00:00:00Z","timestamp":1729900800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The corrosion behavior of the TiTaNbZrAg alloys with different amounts of tantalum (0%, 10% and 20%) and with distinct surface topography (smooth and rough) was investigated in phosphate buffer solution (PBS) for long-time immersion (1000 h). By this approach, we expect to bring about new insights into the influence of both the amount of Ta in the alloy composition and the surface topography on the corrosion behavior of the Ti-based alloys. The corrosion resistance was studied by Open Circuit Potential (OCP), Potentiodynamic Polarization (PP), and Electrochemical Impedance Spectroscopy (EIS). From the potentiodynamic investigations, it was observed that all types of samples showed good corrosion resistance (i.e., Rcorr &lt; 10 \u00b5m y\u22121) and may be used successfully for medical applications. However, the samples with smooth surfaces and with a certain amount of Ta (10% and 20%) exhibit the best corrosion performance (Rcorr &lt; 1 \u00b5m y\u22121). As regards the samples with rough surfaces, the results evidenced that they showed lower corrosion resistance (1 &lt; Rcorr &lt; 3 \u00b5m y\u22121), suggesting that the Ta presence does not necessarily hinder the corrosion processes. Actually, the synergetic effect of both the presence of Ta and surface roughness plays an important role in corrosion resistance.<\/jats:p>","DOI":"10.3390\/ma17215217","type":"journal-article","created":{"date-parts":[[2024,10,28]],"date-time":"2024-10-28T07:47:18Z","timestamp":1730101638000},"page":"5217","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Effect of Surface Roughness on the Electrochemical Behavior and Corrosion Resistance of TiTaNbZrAg Alloy with Different Amounts of Tantalum in Bulk Composition"],"prefix":"10.3390","volume":"17","author":[{"given":"Gabriel","family":"Dobri","sequence":"first","affiliation":[{"name":"Surface Engineering and Corrosion Laboratory, Faculty of Industrial Engineering and Robotics, National University of Science and Technology Politehnica Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandra","family":"Banu","sequence":"additional","affiliation":[{"name":"Surface Engineering and Corrosion Laboratory, Faculty of Industrial Engineering and Robotics, National University of Science and Technology Politehnica Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristina","family":"Donath","sequence":"additional","affiliation":[{"name":"Institute of Physical Chemistry-Ilie Murgulescu, Splaiul Independentei 202, 060021 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elena Ionela","family":"Neacsu","sequence":"additional","affiliation":[{"name":"Institute of Physical Chemistry-Ilie Murgulescu, Splaiul Independentei 202, 060021 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4865-2652","authenticated-orcid":false,"given":"Mihai","family":"Anastasescu","sequence":"additional","affiliation":[{"name":"Institute of Physical Chemistry-Ilie Murgulescu, Splaiul Independentei 202, 060021 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monica Elisabeta","family":"Maxim","sequence":"additional","affiliation":[{"name":"Institute of Physical Chemistry-Ilie Murgulescu, Splaiul Independentei 202, 060021 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cora","family":"Vasilescu","sequence":"additional","affiliation":[{"name":"Institute of Physical Chemistry-Ilie Murgulescu, Splaiul Independentei 202, 060021 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Loredana","family":"Preda","sequence":"additional","affiliation":[{"name":"Institute of Physical Chemistry-Ilie Murgulescu, Splaiul Independentei 202, 060021 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"Marcu","sequence":"additional","affiliation":[{"name":"Institute of Physical Chemistry-Ilie Murgulescu, Splaiul Independentei 202, 060021 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,10,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2007","DOI":"10.1016\/j.arabjc.2017.06.003","article-title":"Corrosion behavior of CoCrMoW cast alloy in lactic acid environment for surgical applications","volume":"12","author":"Banu","year":"2019","journal-title":"Arab. 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