Stress corrosion characteristics of electron beam welded titanium alloys joints in NaCl solution

Gao, Fuyang; Sun, Zhigang; Yang, Sen; Jiang, Peng; Liao, Zhiqian

doi:10.1016/j.matchar.2022.112126

Cited by 16 publications

(5 citation statements)

References 17 publications

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“…6 show that the fractured surface occurs as a typical ductile fracture after the tensile test. The fracture surface is similar to the fracture surface images shown in the literature [71][72][73] and shows a typical ductile material behavior, consisting of coaxial pits alongside fluctuations and micro-voids, implying that there has been localized plastic deformation that occurred before fracture. After the corrosion test, SEM and EDS analyses were performed on the fractured surfaces of the samples with the highest weight change.…”

Section: Microstructural Analysissupporting

confidence: 75%

Corrosion behavior of fiber laser welded Ti-6Al-4V alloy rods with different pH and temperature in 0.9 wt% NaCl medium

Yontar,

Çevik

2023

Res. Eng. Struct. Mat.

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The corrosion resistance of laser welded samples was carried out in a shaken incubator in body-simulated liquid environments and kept at pH3-5 and 25-50˚C conditions for 24 hours. It was determined that acicular α' martensite structures were formed in the fusion regions and these structures increased the hardness of the alloy by 20% compared to the base metal. The welded samples had the highest tensile strength of 144 MPa. Weight changes after the corrosion test were calculated and the highest weight loss was found to be 0.0025 g for the sample with an initial weight of 4.1394 g. TiO2 oxides and {1 0 0} and {1 1 1} chamber-shaped salt crystals were formed larger and more intensely in the fusion zones than the base metal. Dental metallic implant welding with fiber laser will have higher corrosion resistance in oral use with different temperature and pH environments compared to screw joints.

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Section: Microstructural Analysissupporting

confidence: 75%

Corrosion behavior of fiber laser welded Ti-6Al-4V alloy rods with different pH and temperature in 0.9 wt% NaCl medium

Yontar,

Çevik

2023

Res. Eng. Struct. Mat.

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“…They found that the current density in both the passivation region and the cathodic region increased compared to the current density of the unstrained samples. Additionally, due to the complex composition of the passive films on these two alloys, the current density in the passivation region was lower than that of pure titanium [12][13][14].…”

Section: Introductionmentioning

confidence: 93%

Effect of Plastic Deformation and Acidic Solution on the Corrosion Behavior of Ti-6Al-4V ELI Titanium Alloy

Zheng,

Xu,

Cai

et al. 2023

Metals

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This study investigated the tensile deformation of Ti-6Al-4V ELI titanium alloy and its effect on corrosion performance. The results showed that the structural morphology of the samples’ strain levels of 0%, 5%, and 10% had minimal changes under an optical microscope. Further investigation of grain orientation information was conducted using electron backscatter diffraction (EBSD), revealing that tensile deformation induced grain rotation, resulting in the diversity of originally preferred orientation grains and a decrease in texture strength. A small amount of {10–12}<−1011> extension twinning formed during the tensile deformation process. The electrochemical properties of Ti-6Al-4V ELI samples with different strain levels were evaluated in 3.5% NaCl solution with pH values of 7 and 1.5. The results indicated that both plastic deformation and acidic environments were detrimental to the passivation film on the titanium alloy surface, leading to reduced corrosion resistance.

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“…As the result of the interaction of stress and corrosive solution, stress-corrosion cracking (SCC) is highly dependent on the applied stress since the corrosive solution is usually not selectable in engineering applications [1]. Due to the rapid development of modern industries, the stress-corrosion has become a critical issue since the service environment of the structural part is deteriorating with the increasing serving time [2][3][4]. The main reason causing the SCC is the stress, which might be caused by multiple factors [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effect of applied stress on corrosion properties of Q235 steel with multi-layer epoxy coating

Zhang

Dong²,

Liu³

et al. 2023

J. Phys.: Conf. Ser.

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Organic coating is one of the most effective, economical and universal methods for corrosion resistance of metal at a small, but the stability of the coating is highly dependent on the applied stress. In the study, a comprehensive experiment was conducted to investigate the corrosion progress of Q235 steel sheets in 3.5% NaCl solution and 10% H2SO4. The effect of applied stress on the corrosion as well as the corresponding adhesion characteristics of Q235 steel are examined and quantitatively analyzed. Results indicate that, compared with the NaCl solution, the H2SO4 solution has aggressive corrosion on the Q235 steel sheets, and the corrosion would be largely aggravated with increasing applied stress. Additionally, the decreased adhesion grade of the epoxy coating is a synergic result of the immersion time and the stress, and the continuous dissolution of the coating would lead to the aggravation of corrosion, which side-fact indicates that the prepared epoxy resin paint could show efficient anti-corrosive properties. Therefore, the stress has a direct influence on the adhesion ability of the prepared epoxy resin coating, which would decrease the anti-corrosion properties of the coating.

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Stress corrosion characteristics of electron beam welded titanium alloys joints in NaCl solution

Cited by 16 publications

References 17 publications

Corrosion behavior of fiber laser welded Ti-6Al-4V alloy rods with different pH and temperature in 0.9 wt% NaCl medium

Corrosion behavior of fiber laser welded Ti-6Al-4V alloy rods with different pH and temperature in 0.9 wt% NaCl medium

Effect of Plastic Deformation and Acidic Solution on the Corrosion Behavior of Ti-6Al-4V ELI Titanium Alloy

Effect of applied stress on corrosion properties of Q235 steel with multi-layer epoxy coating

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