Tribocorrosion Behavior of NiTi Biomedical Alloy Processed by an Additive Manufacturing Laser Beam Directed Energy Deposition Technique

被引：17

作者：

Buciumeanu, Mihaela ^{[1
]}

Bagheri, Allen ^{[2
]}

Silva, Filipe Samuel ^{[3
]}

Henriques, Bruno ^{[3
,4
]}

Lasagni, Andres F. ^{[5
,6
]}

Shamsaei, Nima ^{[7
,8
]}

机构：

[1] Dunarea de Jos Univ Galati, Dept Mech Engn, Fac Engn, Domneasca 47, Galati 800008, Romania

[2] Mississippi State Univ, Ctr Adv Vehicular Syst CAVS, Starkville, MS 39762 USA

[3] Univ Minho, Ctr Microelectro Mech Syst CMEMS UMinho, Campus Azurem, P-4800058 Guimaraes, Portugal

[4] Fed Univ Santa Catarina UFSC, Lab Ceram & Composite Mat CERMAT, Campus Trindade, BR-88040900 Florianopolis, SC, Brazil

[5] Tech Univ Dresden, Inst Mfg Technol, D-01062 Dresden, Germany

[6] Fraunhofer Inst Werkstoff & Strahltech IWS, Winterbergstr 28, D-01277 Dresden, Germany

[7] Auburn Univ, Dept Mech Engn, Auburn, AL 36849 USA

[8] Auburn Univ, Natl Ctr Addit Mfg Excellence NCAME, Auburn, AL 36849 USA

来源：

MATERIALS | 2022年 / 15卷 / 02期

关键词：

NiTi; Ti-6Al-4V; laser engineered net shaping (LENS); tribocorrosion; SHAPE-MEMORY ALLOYS; CORROSION BEHAVIOR; WEAR-RESISTANCE; TRIBOLOGICAL BEHAVIOR; FATIGUE BEHAVIOR; TRIBO-CORROSION; HEAT-TREATMENT; MEAN STRAIN; MICROSTRUCTURE; TRANSFORMATION;

D O I：

10.3390/ma15020691

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The purpose of the present study was to experimentally assess the synergistic effects of wear and corrosion on NiTi alloy in comparison with Ti-6Al-4V alloy, the most extensively used titanium alloy in biomedical applications. Both alloys were processed by an additive manufacturing laser beam directed energy deposition (LB-DED) technique, namely laser engineered net shaping (LENS), and analyzed via tribocorrosion tests by using the ball-on-plate configuration. The tests were carried out in phosphate buffered saline solution at 37 degrees C under open circuit potential (OCP) to simulate the body environment and temperature. The synergistic effect of wear and corrosion was found to result in an improved wear resistance in both materials. It was also observed that, for the process parameters used, the LB-DED NiTi alloy exhibits a lower tendency to corrosion as compared to the LB-DED Ti-6Al-4V alloy. It is expected that, during the service life as an implant, the NiTi alloy is less susceptible to the metallic ions release when compared with the Ti-6Al-4V alloy.

引用

页数：15

共 58 条

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