A mass balance analysis of the tribocorrosion process of titanium alloys using a single micro-asperity: Voltage and solution effects on plastic deformation, oxide repassivation, and ion dissolution

Mace, Annsley; Gilbert, Jeremy

doi:10.1016/j.jmbbm.2022.105531

Cited by 12 publications

(5 citation statements)

References 29 publications

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“…This result, consistent with other studies of single asperity fretting corrosion testing, decreases subsequent fretting corrosion damage and reduces the measured fretting corrosion currents [53,59]. This is, essentially, an effect arising during fretting corrosion that has only recently been identified and shows that there are antagonistic effects resulting from oxide debris embedding processes [53,59]. Additionally, EDS of the fretting corrosion debris and wear tracks (Table 2, Figure 6) reveals discrepancies in Nb and Zr content for the admixed and pre-alloyed Ti-29Nb-21Zr.…”

Section: Discussionsupporting

confidence: 91%

“…The SEM imaging analysis of wear and fretting corrosion scars showed varying amounts of oxide debris generation and embedding within the damage zone. This result, consistent with other studies of single asperity fretting corrosion testing, decreases subsequent fretting corrosion damage and reduces the measured fretting corrosion currents [53,59]. This is, essentially, an effect arising during fretting corrosion that has only recently been identified and shows that there are antagonistic effects resulting from oxide debris embedding processes [53,59].…”

Section: Discussionsupporting

confidence: 90%

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Fretting and Fretting Corrosion Behavior of Additively Manufactured Ti-6Al-4V and Ti-Nb-Zr Alloys in Air and Physiological Solutions

Mace,

Kurtz,

Gilbert

2024

JFB

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Additive manufacturing (AM) of orthopedic implants has increased in recent years, providing benefits to surgeons, patients, and implant companies. Both traditional and new titanium alloys are under consideration for AM-manufactured implants. However, concerns remain about their wear and corrosion (tribocorrosion) performance. In this study, the effects of fretting corrosion were investigated on AM Ti-29Nb-21Zr (pre-alloyed and admixed) and AM Ti-6Al-4V with 1% nano yttria-stabilized zirconia (nYSZ). Low cycle (100 cycles, 3 Hz, 100 mN) fretting and fretting corrosion (potentiostatic, 0 V vs. Ag/AgCl) methods were used to compare these AM alloys to traditionally manufactured AM Ti-6Al-4V. Alloy and admixture surfaces were subjected to (1) fretting in the air (i.e., small-scale reciprocal sliding) and (2) fretting corrosion in phosphate-buffered saline (PBS) using a single diamond asperity (17 µm radius). Wear track depth measurements, fretting currents and scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS) analysis of oxide debris revealed that pre-alloyed AM Ti-29Nb-21Zr generally had greater wear depths after 100 cycles (4.67 +/− 0.55 µm dry and 5.78 +/− 0.83 µm in solution) and higher fretting currents (0.58 +/− 0.07 µA). A correlation (R2 = 0.67) was found between wear depth and the average fretting currents with different alloys located in different regions of the relationship. No statistically significant differences were observed in wear depth between in-air and in-PBS tests. However, significantly higher amounts of oxygen (measured by oxygen weight % by EDS analysis of the debris) were embedded within the wear track for tests performed in PBS compared to air for all samples except the ad-mixed Ti-29Nb-21Zr (p = 0.21). For traditional and AM Ti-6Al-4V, the wear track depths (dry fretting: 2.90 +/− 0.32 µm vs. 2.51 +/− 0.51 μm, respectively; fretting corrosion: 2.09 +/− 0.59 μm vs. 1.16 +/− 0.79 μm, respectively) and fretting current measurements (0.37 +/− 0.05 μA vs. 0.34 +/− 0.05 μA, respectively) showed no significant differences. The dominant wear deformation process was plastic deformation followed by cyclic extrusion of plate-like wear debris at the end of the stroke, resulting in ribbon-like extruded material for all alloys. While previous work documented improved corrosion resistance of Ti-29Nb-21Zr in simulated inflammatory solutions over Ti-6Al-4V, this work does not show similar improvements in the relative fretting corrosion resistance of these alloys compared to Ti-6Al-4V.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 90%

Fretting and Fretting Corrosion Behavior of Additively Manufactured Ti-6Al-4V and Ti-Nb-Zr Alloys in Air and Physiological Solutions

Mace,

Kurtz,

Gilbert

2024

JFB

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“…To quantify the effect of tribocorrosion on the whole tribocorrosion process, Annsley Mace et al [ 87 ] measured each influencing factor (V T , V P , V I , and V ICPMS ) using various techniques. Figure 3 shows a schematic of the overall process of tribocorrosion.…”

Section: Tribocorrosion Behaviormentioning

confidence: 99%

“… Schematic of the proposed process of tribocorrosion (measured by the volume of material removed) with a single asperity, composed of a combination of tribocorrosion mechanisms (plastic deformation, oxide passivation, and ion dissolution) [ 87 ]. …”

Section: Figurementioning

confidence: 99%

Tribocorrosion and Surface Protection Technology of Titanium Alloys: A Review

Li,

Zhou,

2023

Materials

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Titanium alloy has the advantages of high specific strength, good corrosion resistance, and biocompatibility and is widely used in marine equipment, biomedicine, aerospace, and other fields. However, the application of titanium alloy in special working conditions shows some shortcomings, such as low hardness and poor wear resistance, which seriously affect the long life and safe and reliable service of the structural parts. Tribocorrosion has been one of the research hotspots in the field of tribology in recent years, and it is one of the essential factors affecting the application of passivated metal in corrosive environments. In this work, the characteristics of the marine and human environments and their critical tribological problems are analyzed, and the research connotation of tribocorrosion of titanium alloy is expounded. The research status of surface protection technology for titanium alloy in marine and biological environments is reviewed, and the development direction and trends in surface engineering of titanium alloy are prospected.

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“…While the wear mechanisms that occur within the femoral trunnion have been explored in the scientific literature, a gap persists in our ability to model both chemically and biologically destructive corrosion damage modes. [21][22][23][24][25][26] A further gap exists in our fundamental understanding of the interaction between potentials and the passive oxide film's electrochemical behavior under varying solution conditions, and the effects of prior electrochemical damage on the impedance response of Ti-6Al-4V.…”

Section: Introductionmentioning

confidence: 99%

Deep Neural Network Predicts Ti‐6Al‐4V Dissolution State Using Near‐Field Impedance Spectra

Kurtz,

Yang,

Liu

et al. 2023

Adv Funct Materials

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Retrieval studies document Ti‐6Al‐4V selective dissolution within crevices of total hip replacement devices. A gap persists in the fundamental understanding of Ti‐6Al‐4V crevice corrosion in vivo and its impact on local impedance. Previous studies use nearfield electrochemical impedance spectroscopy (nEIS) for characterization of retrieved CoCrMo surfaces and phase angle symmetry‐based EIS (sbEIS) for rapid data acquisition. In this study, these methods are combined with a deep neural network to characterize the local impedance changes after selective dissolution. It is hypothesized that structural changes occurring during dissolution will manifest as property changes to the oxide film capacitance. First, after sustained cathodic activation, the Ti‐6Al‐4V β phase selectively dissolves from the surface. Next, nEIS acquires n = 100 control and n = 105 dissolved spectra. Over dissolved regions, oxide capacitance significantly increases (Log10Q = ‐4.17 versus ‐4.78 (Scm−2(s)α), p = 0.000). Using single frequency EIS (5000 Hz), a capacitance‐based scanning impedance microscopy method identifies dissolved regions within seconds. Finally, Bode phase plots of the 205 control and dissolved nEIS spectra are input into a deep neural network. After training with n = 180 spectra, the model predicts the surface state for n = 25 previously unseen nEIS spectra with 96% accuracy.

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A mass balance analysis of the tribocorrosion process of titanium alloys using a single micro-asperity: Voltage and solution effects on plastic deformation, oxide repassivation, and ion dissolution

Cited by 12 publications

References 29 publications

Fretting and Fretting Corrosion Behavior of Additively Manufactured Ti-6Al-4V and Ti-Nb-Zr Alloys in Air and Physiological Solutions

Fretting and Fretting Corrosion Behavior of Additively Manufactured Ti-6Al-4V and Ti-Nb-Zr Alloys in Air and Physiological Solutions

Tribocorrosion and Surface Protection Technology of Titanium Alloys: A Review

Deep Neural Network Predicts Ti‐6Al‐4V Dissolution State Using Near‐Field Impedance Spectra

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