Microstructure and corrosion behavior of the annealed Zr–40Ti–5Al–4V alloys

Xia, Chaoqun; Feng, Zhihao; Yang, Y.H.; Zhang, Z.G.; Jing, Ran; Pan, Bo; Zhang, X.Y.; Ma, Mingzhen; Liu, R.P.

doi:10.1016/j.jallcom.2016.01.140

Cited by 15 publications

(2 citation statements)

References 32 publications

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“…In contrast, the galvanic interaction between the second phase particles and the matrix could be another reason for the occurrence of pitting corrosion. [ 58 ] Soltis summarized several passive film breakdown mechanisms. [ 59 ] Among them, the existence of chloride ions plays a critical role in the deterioration of passive film.…”

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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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%

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

Yang

et al. 2022

Adv Eng Mater

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“…Some high-strength zirconium alloys with excellent mechanical properties have been prepared. For example, ZrTiAlV alloys, which have only been recently developed, possess low density and excellent mechanical properties and corrosion resistance [3][4][5][6]. These alloys have potential applications in the aerospace industry.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen-free nitriding of ZrTiAlV by double glow plasma discharge improving the wear resistance

Lin

Zhang

et al. 2018

Materials Science and Technology

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A hydrogen-free nitriding method through double glow plasma metallurgy is exploited and a nitrided layer was formed on ZrTiAlV alloy. The nitrided layer was characterised through X-ray diffraction, optical microscopy, scanning electron microscopy and energy-dispersive spectroscopy techniques, as well as through Vickers hardness and friction and wear tests. Results showed that the nitrided layer is 580 µm thick, homogeneous and dense. It mainly consists of TiN, Ti2N and ZrN phases. The hardness of the nitrided layer on the surface of the ZrTiAlV alloy is nearly 2.5 times higher than that of the ZrTiAlV substrate. The friction coefficient and wear resistance of the alloy considerably improved after nitriding.

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Structure and Mechanical Properties of Low Doped‐Zr TC4 Alloy Prepared by Spark Plasma Sintering

et al. 2018

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The effects of Zr‐doping on TC4 alloy are investigated by mechanical milling and subsequent spark plasma sintering (SPS) technique. The microstructure and mechanical properties of the sintered ingots are studied. It is shown that the microstructure of the alloys undergoes a β‐phase increase through low Zr‐doping, thus the mechanical properties of the studied alloy is improved. Tensile tests are performed to investigate the strength of TC4‐xZr alloys at room temperature. The tensile strength increases and the ductility maintains at a high level with increased Zr content. As a result, the TC4‐5Zr alloy exhibits the highest tensile strength (1106 MPa) and excellent ductility (δ = 16.1%). It is demonstrated that low Zr‐doping in combination with mechanical milling and SPS provides an effective way to enhance the mechanical properties of TC4 alloys.

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Microstructure and corrosion behavior of the annealed Zr–40Ti–5Al–4V alloys

Cited by 15 publications

References 32 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

Hydrogen-free nitriding of ZrTiAlV by double glow plasma discharge improving the wear resistance

Structure and Mechanical Properties of Low Doped‐Zr TC4 Alloy Prepared by Spark Plasma Sintering

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