Surface characteristics and corrosion behavior of TC11 titanium alloy strengthened by ultrasonic roller burnishing at room and medium temperature

Shen, Xuehui; Xu, Chonghai; He, Jianqun; Wang, Baolin; Su, Guosheng

doi:10.1016/j.jmrt.2020.05.059

Cited by 38 publications

(12 citation statements)

References 44 publications

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“…54 The larger diameter of the capacitive arc reflects the higher corrosion resistance of the material. 23 Therefore, the polarization resistance of the samples can be assessed by comparing the diameters of their semicircle arc which is associated with their corrosion resistance.…”

Section: Resultsmentioning

confidence: 99%

“…22 A smooth surface offers a smaller surface area to corrosive media and loses electrons harder than a rough one. 23 The wettability of a rough surface is also higher than a smooth one, increasing its corrosion rates (CRs). 24 Surface roughness reduction by polishing generally lowers the wettability of materials in contact with corrosive fluids, therefore, enhancing their corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

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The influence of vibration amplitude on AA7075-T6 corrosion resistance improvement during ultrasonic-assisted burnishing

Sayadi

Bagheri

Khosrojerdi

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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Corrosion resistance of materials is predominately dependent on their surface roughness. Therefore, surface finishing techniques can effectively improve the corrosion resistance of the components. Ultrasonic-assisted burnishing (UAB) process is a newly developed surface finishing technique capable of flattening the surface of components without material removal. This research experimentally investigated the effects of amplitude in the UAB process on surface roughness and corrosion performance of AA7075-T6 aluminum alloys. Turned sample (control) was treated by conventional burnishing (CB), followed by UAB with an amplitude of 10, 20, and 30 µm. Then, the surface roughness, microstructure, microhardness, and corrosion resistance of the treated samples were assessed. The surface roughness showed an improvement upon burnishing of the samples, where the best surface was achieved by UAB with an amplitude of 10 µm. UAB process also led to grain refinement such that finer grains could be achieved by increasing the amplitude. Microhardness also increased after the UAB process which got intensified by increasing the amplitude. The turned sample showed the least corrosion resistance, while the UAB-treated specimens (amplitude of 10 µm) exhibited minimal corrosion rate. Furthermore, the enhancement of UAB amplitude increased the surface roughness, causing a decline in corrosion resistance.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of vibration amplitude on AA7075-T6 corrosion resistance improvement during ultrasonic-assisted burnishing

Sayadi

Bagheri

Khosrojerdi

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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show abstract

“…TB2 is highly sensitive to various surface defects, such as microcracks and scratches, which signi cantly affect the fatigue life of parts [1][2][3]. Surface defects affect both the high-cycle fatigue life and low-cycle fatigue life, whereas the surface roughness affects the high-cycle fatigue life [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Effects of electrolyte flushing and surface state on electropolishing TB2 titanium alloy

Wei

Fang

et al. 2022

Int J Adv Manuf Technol

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TB2 titanium alloys are widely used in the aerospace industry. A high surface quality is required for the performance and fatigue life of titanium alloy parts. Electropolishing is useful for thin metal plates owing to its good processability and conformability. In this study, electrolyte ushing was proposed for electropolishing a large surface and a NaCl-containing ethylene glycol electrolyte was adopted. Three different mechanical grindings were employed for pretreatment, and the ideal surface quality was obtained with a rubber grinding head. Therefore, in the process of electropolishing a large surface, electrolyte ushing is superior to stirring because its ow eld is even and controllable. The effects of the main processing parameters (voltage, ow rate, and process time) on the surface roughness and morphology were studied. Finally, a mirror-like surface with a surface roughness of 10.5 nm was obtained after ushing electropolishing for 30 min under a voltage of 25 V and a ow rate of 0.84 m/s.

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“…The researches show that proper heat treatment can optimize the microstructure of GCr15 and improve the strengthening effect of surface treatment on the surface properties of GCr15 [25][26][27][28][29]. Hao Su et al [30] investigated the surface ultrasonic burnishing treatment of TC11 titanium alloy and found that the heating surface of TC11 titanium alloy has better ultrasonic burnishing treatment results, significantly higher corrosion resistance, lower surface roughness. Zhang [31] applied the combination of ultrasonic polishing and heating to laser melting of Fe-based coatings and found that the combination of a period of continuous heating reduces the roughness and porosity of Fe-based coatings, and increases the hardness and residual stresses.…”

Section: Introductionmentioning

confidence: 99%

Effect of ultrasonic rolling on the surface integrity and corrosion properties of GCr15 steel before and after quenching

Lin¹,

Wang²,

Fu³

2022

Mater. Res. Express

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Two new surface strengthening processes,Ultrasonic rolling treatment before and after quenching were investigated on GCr15 steel. The surface integrity and corrosion were tested and ABAQUS simulation was conducted for the two processes. As a result, the proposed process is to carry out ultrasonic rolling on the GCr15 after quenching by the small static loads and rolling times.In comparision with the unquenched sample, the quenched sample is more prone to dislocation and slip, resulting in better grain refinement effect. When the static loads and rolling times are small, ultrasonic rolling has a good peak-cutting and valley-filling effect on the quenched sample surface, which leads to the roughness of the quenched samples less than that of the unquenched samples. The initial residual compressive stress in the quenched sample due to heat treatment is greater and deeper than that of the unquenched sample due to large plastic deformation under small static loads or rolling times. The hardness of the unquenched samples is much lower than that of the quenched samples, owing to better grain refinement effect in quenched samples. The corrosion resistance of quenched samples is better than that of unquenched samples.

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Surface characteristics and corrosion behavior of TC11 titanium alloy strengthened by ultrasonic roller burnishing at room and medium temperature

Cited by 38 publications

References 44 publications

The influence of vibration amplitude on AA7075-T6 corrosion resistance improvement during ultrasonic-assisted burnishing

The influence of vibration amplitude on AA7075-T6 corrosion resistance improvement during ultrasonic-assisted burnishing

Effects of electrolyte flushing and surface state on electropolishing TB2 titanium alloy

Effect of ultrasonic rolling on the surface integrity and corrosion properties of GCr15 steel before and after quenching

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