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Atapour M, Standish TE, Henderson JD, Wei Z, Dehnavi V, Hedberg YS. Influence of Proteins and Building Direction on the Corrosion and Tribocorrosion of CoCrMo Fabricated by Laser Powder Bed Fusion. ACS Biomater Sci Eng 2024; 10:2880-2893. [PMID: 38630940 DOI: 10.1021/acsbiomaterials.3c01165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Cobalt-chromium-molybdenum (CoCrMo) alloys are common wear-exposed biomedical alloys and are manufactured in multiple ways, increasingly using additive manufacturing processes such as laser powder bed fusion (LPBF). Here, we investigate the effect of proteins and the manufacturing process (wrought vs LPBF) and building orientation (LPBF-XY and XZ) on the corrosion, metal release, tribocorrosion, and surface oxide composition by means of electrochemical, mechanical, microscopic, diffractive, and spectroscopic methods. The study was conducted at pH 7.3 in 5 g/L NaCl and 5 mM 2-(N-morpholino) ethanesulfonic acid (MES) buffer, which was found to be necessary to avoid metal phosphate and metal-protein aggregate precipitation. The effect of 10 g/L bovine serum albumin (BSA) and 2.5 g/L fibrinogen (Fbn) was studied. BSA and Fbn strongly enhanced the release of Co, Cr, and Mo and slightly enhanced the corrosion (still in the passive domain) for all CoCrMo alloys and most for LPBF-XZ, followed by LPBF-XY and the wrought CoCrMo. BSA and Fbn, most pronounced when combined, significantly decreased the coefficient of friction due to lubrication, the wear track width and severity of the wear mechanism, and the tribocorrosion for all alloys, with no clear effect of the manufacturing type. The wear track area was significantly more oxidized than the area outside of the wear track. In the reference solution without proteins, a strong Mo oxidation in the wear track surface oxide was indicative of a pH decrease and cell separation of the anodic and cathodic areas. This effect was absent in the presence of the proteins.
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Affiliation(s)
- Masoud Atapour
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7, Canada
| | - Thalia E Standish
- Surface Science Western, The University of Western Ontario, London, Ontario N6G 0J3, Canada
| | - Jeffrey D Henderson
- Surface Science Western, The University of Western Ontario, London, Ontario N6G 0J3, Canada
| | - Zheng Wei
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7, Canada
| | - Vahid Dehnavi
- Surface Science Western, The University of Western Ontario, London, Ontario N6G 0J3, Canada
- Department of Chemical & Biochemical Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Yolanda S Hedberg
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7, Canada
- Surface Science Western, The University of Western Ontario, London, Ontario N6G 0J3, Canada
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Yao L, Ramesh A, Fan Z, Xiao Z, Li G, Zhuang Q, Qiao J. Interface Analysis between Inconel 625 and Cobalt-Chromium Alloy Fabricated by Powder Bed Fusion Using Pulsed Wave Laser. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6456. [PMID: 37834595 PMCID: PMC10573432 DOI: 10.3390/ma16196456] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/24/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023]
Abstract
A few components used in the aerospace and petrochemical industries serve in corrosive environments at high temperatures. Corrosion-resistant metals or unique processes, such as coating and fusion welding, are required to improve the performance of the parts. We have used laser powder bed fusion (LPBF) technology to deposit a 5 mm thick corrosion-resistant CoCrMo layer on a high-strength IN625 substrate to improve the corrosion resistance of the core parts of a valve. This study found that when the laser volumetric energy density (EV) ≤ 20, the tensile strength increases linearly with the increase in EV, and the slope of the curve is approximately 85°. The larger the slope, the greater the impact of EV on the intensity. When EV > 20, the sample strength reaches the maximum tensile strength. When the EV increases from 0 to 20, the fracture position of the sample shifts from CoCrMo to IN625. When EV ≤ 38, the strain increases linearly with the increase in EV, and the slope of the curve is approximately 67.5°. The sample strain rate reaches the maximum when EV > 38. Therefore, for an optimal sample strength and strain, EV should be greater than 38. This study provides theoretical and technical support for the manufacturing of corrosion-resistant dissimilar metal parts using LPBF technology.
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Affiliation(s)
- Liming Yao
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Aditya Ramesh
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Zongheng Fan
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Zhongmin Xiao
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Guanhai Li
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China;
| | - Quihui Zhuang
- School of Mechanical Engineering, Chongqing University of Technology, Chongqing 400054, China
| | - Jing Qiao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, China;
- Zhengzhou Research Institute of Harbin Institute of Technology, Zhengzhou 450002, China
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Leban MB, Kurnik M, Kopač I, Klug MJ, Podgornik B, Kosec T. Disclosing differences between 3-D printed and traditionally milled CoCr dental alloy from casted block in oral environment. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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Atapour M, Sanaei S, Wei Z, Sheikholeslam M, Henderson JD, Eduok U, Hosein YK, Holdsworth DW, Hedberg YS, Ghorbani HR. In vitro corrosion and biocompatibility behavior of CoCrMo alloy manufactured by laser powder bed fusion parallel and perpendicular to the build direction. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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