{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T22:19:04Z","timestamp":1792102744355,"version":"4.4.0"},"reference-count":34,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2024,5,27]],"date-time":"2024-05-27T00:00:00Z","timestamp":1716768000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Shaanxi Natural Science Foundation project","award":["2024JC-YBMS-339"],"award-info":[{"award-number":["2024JC-YBMS-339"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Personalized laser powder bed fusion (PBF-LB\/M) Ti-6Al-4V (TC4) has a broader application prospect than that of traditional casting. In this paper, the composition and corrosion resistance of the passive film formation mechanism of TC4 prepared by optimization of PBF-LB\/M techniques and traditional casting were systematically studied in 0.9 wt.% NaCl at 37 \u00b0C by electrochemical technique and surface analysis. The rates of the passive film formation process, corrosion resistance and composition of TC4 show different characteristics for the different preparation processes. Although the rate of passive film formation of cast-TC4 was higher at the initial immersion, the open circuit potential was more positive, and the film thickness was larger after stabilization, those facts show no positive correlation with corrosion resistance. On the contrary, with no obvious defects on the optimized PBF-LB\/M-TC4, the passive film resistance is 2.5 times more, the defect concentration is reduced by 30%, and the TiO2 content is higher than that of the cast-TC4, making the martensitic-based PBF-LB\/M-TC4 exhibit excellent corrosion resistance. This also provides good technical support for the further clinical application of PBF-LB\/M-TC4.<\/jats:p>","DOI":"10.3390\/ma17112583","type":"journal-article","created":{"date-parts":[[2024,5,28]],"date-time":"2024-05-28T03:48:49Z","timestamp":1716868129000},"page":"2583","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Comparative Study on Passive Film Formation Mechanism of Cast and PBF-LB\/M-TC4 in Simulated Physiological Solution"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3050-3173","authenticated-orcid":false,"given":"Ming","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Materials Science and Engineering, Xi\u2019an University of Technology, Xi\u2019an 710048, China"},{"name":"Shaanxi Province Key Laboratory of Corrosion and Protection, Xi\u2019an University of Technology, Xi\u2019an 710048, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-9584-6190","authenticated-orcid":false,"given":"Zhang","family":"Liu","sequence":"additional","affiliation":[{"name":"Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials, Xi\u2019an Jiaotong University, Xi\u2019an 710049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jie","family":"Wang","sequence":"additional","affiliation":[{"name":"Shaanxi Zhou Doctor Dental Medical Co., Ltd., Xi\u2019an 710086, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongqiang","family":"Zhang","sequence":"additional","affiliation":[{"name":"Xi\u2019an QinTi Intelligent Manufacturing Technologies Co., Ltd., Xi\u2019an 710061, China"},{"name":"State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi\u2019an 710072, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7160-2066","authenticated-orcid":false,"given":"Xin","family":"Gao","sequence":"additional","affiliation":[{"name":"Research and Development Department, Beijing Med-Zenith Medical Scientific Corporation Limited, Beijing 101316, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,5,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"101","DOI":"10.1016\/j.precisioneng.2022.02.004","article-title":"Microstructured surface generation and cutting force prediction of pure titanium TA2","volume":"75","author":"Du","year":"2022","journal-title":"Precis. 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