Improving corrosion resistance of additively manufactured WE43 magnesium alloy by high temperature oxidation for biodegradable applications

Liu, Jinge; Yin, Bangzhao; Song, Fei; Liu, Bingchuan; Peng, Bo; Wen, Peng; Tian, Yun; Zheng, Yufeng; Ma, Xiaolin; Wang, Caimei

doi:10.1016/j.jma.2022.08.009

Cited by 13 publications

(4 citation statements)

References 35 publications

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“…These fine second-phase particles could provide a pinning effect inhibiting grain growth and dislocation movement, thereby refining the microstructure and enhancing the mechanical strength [ 26 ]. It is worth noting that the absence of the Mg-Y seconding phase may be due to the high solid solubility of Y in the Mg matrix (12.3 wt%) [ 27 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of the Combination of Torsional and Tensile Stress on Corrosion Behaviors of Biodegradable WE43 Alloy in Simulated Body Fluid

Wang

Gao

Pan³

et al. 2023

JFB

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The real physiological environment of the human body is complicated, with different degrees and forms of loads applied to biomedical implants caused by the daily life of the patients, which will definitely influence the degradation behaviors of Mg-based biodegradable implants. In the present study, the degradation behaviors of modified WE43 alloys under the combination of torsional and tensile stress were systematically investigated. Slow strain rate tensile tests revealed that the simulated body fluid (SBF) solution could deteriorate the ultimate tensile stress of WE43 alloy from 210.1 MPa to 169.2 MPa. In the meantime, the fracture surface of the specimens tested in the SBF showed an intergranular corrosion morphology in the marginal region, while the central area appeared not to have been affected by the corrosive media. The bio-degradation performances under the combination of torsional and tensile stressed conditions were much more severe than those under unstressed conditions or single tensile stressed situations. The combination of 40 MPa tensile and 40 MPa torsional stress resulted in a degradation rate over 20 mm/y, which was much higher than those under 80 MPa single tensile stress (4.5 mm/y) or 80 MPa single torsional stress (13.1 mm/y). The dynamic formation and destruction mechanism of the protective corrosion products film on the modified WE43 alloy could attribute to the exacerbated degradation performance and the unique corrosion morphology. The dynamic environment and multi-directional loading could severely accelerate the degradation process of modified WE43 alloy. Therefore, the SCC susceptibility derived from a single directional test may be not suitable for practical purposes. Complex external stress was necessary to simulate the in vivo environment for the development of biodegradable Mg-based implants for clinical applications.

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Section: Resultsmentioning

confidence: 99%

Effect of the Combination of Torsional and Tensile Stress on Corrosion Behaviors of Biodegradable WE43 Alloy in Simulated Body Fluid

Wang

Gao

Pan³

et al. 2023

JFB

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“…However, these untreated WE43 scaffolds exhibited rapid degradation, making it difficult to provide lasting and stable biomechanical support in defect areas [ 14 ]. Our previous research has reported the effective effect of HTO treatment on the in vitro biodegradation rate [ 15 ]. In this research, we further applied the HTO method to optimize the anti-corrosive ability of WE43 scaffolds and aimed to explore their feasibility and effectiveness for coping the complicated injury type, namely, fractures accompanied by subarticular cancellous bone defects.…”

Section: Discussionmentioning

confidence: 99%

“…After LPBF, the scaffolds were chemically polished in the solution containing 5% HCl, 5% HNO 3 , and balanced C 2 H 5 OH for 120 s. Subsequently, HTO process was performed in a muffle furnace (HF-Kejing KSL-1200, China) with circulating air. The process parameters of HTO have been optimized based on our previous research [ 15 ]. The scaffolds were heated to 525 °C for 8 h with a heating rate of 10 °C/min, then the scaffolds were quenched in the water at room temperature.…”

Section: Methodsmentioning

confidence: 99%

“…In addition, we successfully improved the corrosion resistance of the printed WE43 samples via high temperature oxidation (HTO) method. The HTO-treated samples were able to maintain their structural integrity and lost only 6.88% weight after a 28-day immersion in Hank's solution [ 15 ]. In theory, this kind of HTO-treated and customized WE43 scaffold has emerged as a promising choice for repairing irregular periarticular cancellous bone defects.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High temperature oxidation treated 3D printed anatomical WE43 alloy scaffolds for repairing periarticular bone defects: In vitro and in vivo studies

Liu,

Wang

et al. 2024

Bioactive Materials

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Corrosion Performance of Additively Manufactured Metallic Biomaterials: A Review

Singh,

Singh

2024

Biomedical Materials for Multi-Functional Applications

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Improving corrosion resistance of additively manufactured WE43 magnesium alloy by high temperature oxidation for biodegradable applications

Cited by 13 publications

References 35 publications

Effect of the Combination of Torsional and Tensile Stress on Corrosion Behaviors of Biodegradable WE43 Alloy in Simulated Body Fluid

Effect of the Combination of Torsional and Tensile Stress on Corrosion Behaviors of Biodegradable WE43 Alloy in Simulated Body Fluid

High temperature oxidation treated 3D printed anatomical WE43 alloy scaffolds for repairing periarticular bone defects: In vitro and in vivo studies

Corrosion Performance of Additively Manufactured Metallic Biomaterials: A Review

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