Influence of phase composition and microstructure on mechanical properties of hot-rolled Ti-χZr-4Al-0.005B alloys

Liu, S.G.; Xia, Chaoqun; Feng, Zhihao; Zhang, Xiangxiong; Chen, B.H.; Xie, Chenlong; Zhou, Yu; Ma, Mingzhen; Liu, R.P.

doi:10.1016/j.jallcom.2018.04.043

Cited by 10 publications

(5 citation statements)

References 40 publications

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“…However, due to the specific crystal structure of the α phase (hcp), there are very few slip systems that can be activated during the deformation process, resulting in the α phase being forcibly broken. [ 36 ] Therefore, the acicular α phase exhibited a different length. In addition, the randomly distributed second phase particles were observed in Y 0.6 , Y 0.8 , Y 1 , and Y 2 alloy (Figure 5e–h), and the size of the second phase particle increased with the addition of yttrium.…”

Section: Resultsmentioning

confidence: 99%

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Microstructure, Mechanical Properties, and Corrosion Behavior of Hot‐Rolled Ti‐25Zr‐xY Alloys

Yang

et al. 2022

Adv Eng Mater

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A series of Ti‐25Zr‐xY alloys are prepared by a vacuum arc melting furnace. Then, the Ti‐25Zr‐xY alloys are hot‐rolled by a multi‐pass rolling process. The mechanical properties and corrosion behavior of hot‐rolled Ti‐25Zr‐xY alloys were investigated using microscopic characterization. The results show that the microstructure of the alloys is mainly composed of α and α‐Y phases. The particle size of the second phase α‐Y increases with the increase of the Y element. When Y content reaches 0.4%, the alloy exhibits excellent mechanical properties (σ 0.2 = 930 ± 10 MPa, ε f = 10.16 ± 0.3%). The precipitation of the second phase and the presence of metal compounds are responsible for reducing the corrosion resistance of hot‐rolled Ti‐25Zr‐xY alloys. The corrosion behavior of the alloys in chlorine solution is sensitive to the Y content, with Ti‐25Zr‐0.1Y alloy having the best corrosion resistance. The erosion sensitivity of Zr and the precipitation of Y are responsible for the observed pitting corrosion phenomenon.

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Section: Resultsmentioning

confidence: 99%

“…The initiation site of microcrack nucleates on the second phase particles, and the initiation site of microcrack propagates into the matrix until the specimen breaks. [ 36,41 ]…”

Section: Resultsmentioning

confidence: 99%

Microstructure, Mechanical Properties, and Corrosion Behavior of Hot‐Rolled Ti‐25Zr‐xY Alloys

Yang

et al. 2022

Adv Eng Mater

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“…Therefore, the XRD peaks of sample C and D returned to normal position again. Moreover, for specimen C, it could be seen that the α(101) peak shifted to the higher angles indicating a compressive strain out-ofplane [1,2] compared to specimen D. In addition, the width of the diffraction peaks slightly broadened apart from the untreated sample, which indicate that the grains were refined in the condition of identical composition after surface deformation strengthening and anodic oxidation treatment.…”

Section: Morphologies and Structuresmentioning

confidence: 93%

“…Nowadays, titanium (Ti) and Ti alloys are applied in many key areas, such as ocean and aerospace engineering and the medical industry, due to their excellent combination of mechanical properties, strong corrosion resistance, and low density [1][2][3][4]. As a medical material, specifically, the TC4 alloy exhibits good processability and mechanical properties; therefore, it is applied widely in artificial joints, oral applications, and as a skull modification Ti mesh [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Impact of Engineering Surface Treatment on Surface Properties of Biomedical TC4 Alloys under a Simulated Human Environment

Deng¹,

Xu²,

Liu

et al. 2022

Coatings

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The impact of sandblasting, anodic oxidation, and anodic oxidation after sandblasting on the surface structure and properties of titanium alloys was investigated. It was found that the surface treatments had a significant influence on the surface roughness values, contact angle values, Vickers hardness, wear resistance, and corrosion resistance of titanium alloys. The surface roughness of titanium alloys with sandblasting treatment was increased by 67% compared to untreated specimen. The Vickers hardness of titanium alloys treated with anodic oxidation after sandblasting was found to increase from 380.8 HV to 408.5 HV, which was increased by 7.3%. The surface treatments in this work improved the wear resistance of the titanium alloys to some extent, and it can be found that the wear scar width is reduced by up to 18.6%. The corrosion resistance of the titanium alloys was found to improve on anodic oxidation. Sandblasting was found to increase surface roughness and promote the formation of a porous layer during the anodization process, resulting in a slight decrease in corrosion resistance. The corrosion current density was increased by 21% compared to the untreated specimen. The corrosion current density of the titanium alloy treated with anodic oxidation decreased to 7.01 × 10−8 A/cm2. The corrosion current density was decreased by 24% compared to the untreated specimen. The corrosion current density of the titanium alloys treated with anodic oxidation after sandblasting decreased to 7.63 × 10−8 A/cm2. The corrosion current density was decreased by 8.8% compared to the specimen with anodic oxidation. The anodic oxidation provided a hydrophilic property for the surface of Ti alloys, which could show a better osseointegration characteristic than that of sandblasting. The impact of the surface treatments on surface structure and properties of titanium alloys was studied.

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“…Hence, Ti and Zr can form an infinite solid solution, which is highly desirable for large-scale applications. Therefore, several studies have been conducted on Ti-Zr alloys, such as Ti-Zr (Correa et al, 2014;Li et al, 2011), Ti-Zr-Nb (Geetha et al, 2004), Ti-Zr-Al (Jiang et al, 2014;Jiang et al, 2015) and Ti-Zr-Al-B (Liu et al, 2019;Liu et al, 2018;Liu et al, 2020;Li et al, 2019b;Ijaz et al, 2015), demonstrating the positive influence of Zr addition. Furthermore, Ti alloys experience harsh corrosive environments, such as marine and hydrochloric acid environments.…”

Section: Introductionmentioning

confidence: 99%

Influence of Zr content on immersion and electrochemical corrosion behavior of as-cast TiZr alloys

Zhao

Liu²,

Li³

et al. 2022

ACMM

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Purpose The purpose of this paper is to study the influence of Zr content on immersion and electrochemical corrosion behavior of Zr-containing Ti-based (TiZr) alloys. Design/methodology/approach The phase analysis of as-cast TχZAB alloys was carried out using X-ray diffraction. The microstructure of corrosion surfaces of the samples was observed using optical metallographic microscopy and scanning electron microscopy, equipped with energy dispersive spectroscopy. Findings The immersion test reveals that the corrosion is alleviated in the presence of a high amount of Zr, whereas pitting corrosion occurs when the Zr content is up to 40 Wt.%. Furthermore, the electrochemical analysis demonstrates that the corrosion resistance TiZr alloys is improved with increasing Zr content. Originality/value The TiZr alloys are promising candidates for high-end applications because of their excellent comprehensive properties. These alloys are usually used in marine or other harsh corrosive environments; therefore, it is essential to study their corrosion behavior.

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Influence of phase composition and microstructure on mechanical properties of hot-rolled Ti-χZr-4Al-0.005B alloys

Cited by 10 publications

References 40 publications

Microstructure, Mechanical Properties, and Corrosion Behavior of Hot‐Rolled Ti‐25Zr‐xY Alloys

Microstructure, Mechanical Properties, and Corrosion Behavior of Hot‐Rolled Ti‐25Zr‐xY Alloys

Impact of Engineering Surface Treatment on Surface Properties of Biomedical TC4 Alloys under a Simulated Human Environment

Influence of Zr content on immersion and electrochemical corrosion behavior of as-cast TiZr alloys

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