Ultrastrong nanotwinned titanium alloys through additive manufacturing

Zhu, Yuman; Zhang, Kun; Meng, Zhichao; Zhang, Kai; Hodgson, Peter; Birbilis, Nick; Weyland, Matthew; Fraser, Hamish L.; Lim, Samuel Chao Voon; Peng, Huizhi; Yang, Rui; Wang, Hao; Huang, Aijun

doi:10.1038/s41563-022-01359-2

Cited by 78 publications

(15 citation statements)

References 50 publications

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“…First, advanced processing techniques are needed to synthesize bulk and fully nanotwinned microstructures. A recent study 285 demonstrated that a bulk nanotwinned structure can be introduced into titanium alloys by exploiting additive manufacturing and subsequent thermal annealing. Second, the interplay of the nanotwinned structure with other nanostructures (e.g., through nanoprecipitation and composition undulation) under high stress and high temperature is largely unexplored.…”

Section: Discussionmentioning

confidence: 99%

Phase Engineering of Nanostructural Metallic Materials: Classification, Structures, and Applications

Gu,

Duan,

Liu

et al. 2024

Chem. Rev.

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Metallic materials are usually composed of single phase or multiple phases, which refers to homogeneous regions with distinct types of the atom arrangement. The recent studies on nanostructured metallic materials provide a variety of promising approaches to engineer the phases at the nanoscale. Tailoring phase size, phase distribution, and introducing new structures via phase transformation contribute to the precise modification in deformation behaviors and electronic structures of nanostructural metallic materials. Therefore, phase engineering of nanostructured metallic materials is expected to pave an innovative way to develop materials with advanced mechanical and functional properties. In this review, we present a comprehensive overview of the engineering of heterogeneous nanophases and the fundamental understanding of nanophase formation for nanostructured metallic materials, including supra-nano-dual-phase materials, nanoprecipitation-and nanotwin-strengthened materials. We first review the thermodynamics and kinetics principles for the formation of the supra-nano-dual-phase structure, followed by a discussion on the deformation mechanism for structural metallic materials as well as the optimization in the electronic structure for electrocatalysis. Then, we demonstrate the origin, classification, and mechanical and functional properties of the metallic materials with the structural characteristics of dense nanoprecipitations or nanotwins. Finally, we summarize some potential research challenges in this field and provide a short perspective on the scientific implications of phase engineering for the design of next-generation advanced metallic materials.

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Section: Discussionmentioning

confidence: 99%

Phase Engineering of Nanostructural Metallic Materials: Classification, Structures, and Applications

Gu,

Duan,

Liu

et al. 2024

Chem. Rev.

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“…Both PBF and DED processes undergo ultrafast heating and solidification due to the instantaneous interaction between the high-energy beam and metal powder, which can be considered as nonequilibrium processing [55] . Therefore, the ultrafine microstructure of the as-printed samples can be obtained, leading to excellent properties [56] .…”

Section: Additive Manufacturingmentioning

confidence: 99%

New trends in additive manufacturing of high-entropy alloys and alloy design by machine learning: from single-phase to multiphase systems

Zhou¹,

Zhang²,

Wang³

et al. 2022

J Mater Inf

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Alloys with excellent properties are always in significant demand for meeting the severe conditions of industrial applications. However, the design strategies of traditional alloys based on a single principal element have reached their limits in terms of property optimization. The concept of high-entropy alloys (HEAs) provides a new design strategy based on multicomponent elements, which may overcome the bottleneck problems that exist in traditional alloys. To further maximize the capability of HEAs, a novel additive manufacturing (AM) technique has been utilized to produce HEA components with the desired structures and properties. This review considers a new trend in the AM of HEAs, i.e., from the AM of single-phase HEAs to multiphase HEAs. Although most as-printed single-phase HEAs show superior tensile properties to as-cast ones, their strength is still not satisfactory, especially at elevated temperatures. Thus, multiphase HEAs are developed by introducing hard second phases, such as L12, BCC, carbides, oxides, nitrides, and so on. These phases can be introduced to the matrix using in situ alloying during AM or the subsequent heat treatment. Dislocation strengthening is considered as the main reason for improving the tensile properties of as-printed single-phase HEAs. In contrast, multiple strengthening and toughening mechanisms occur in as-printed multiphase HEAs, which can synergistically enhance their mechanical properties. Furthermore, machine learning provides an effective method to design new alloys with the desired properties and predict the optimal AM parameters for the designed alloys without tedious experiments. The synergistic combination of machine learning and AM will significantly speed up scientific advances and promote industrial applications.

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“…With a high heat resistance, strength, plasticity, toughness, formability, weldability and corrosion resistance, titanium alloys are widely used in aerospace engines, shipbuilding and marine engineering (Farabi et al , 2023; Fang et al , 2023; Zhu et al , 2022). Thus, they are known as “marine metals” (Festas et al , 2022).…”

Section: Introductionmentioning

confidence: 99%

Construction of superhydrophobic film on the titanium alloy welded joint and its corrosion resistance study

Zhang,

Wei

et al. 2023

ACMM

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Purpose This study aims to improve the corrosion resistance of TA2-welded joints by superhydrophobic surface modification using micro-arc oxidation technology and low surface energy substance modification. Design/methodology/approach The microstructure and chemical state of the superhydrophobic film layer were analyzed using scanning electron microscopy, energy dispersive X-ray spectroscopy, three-dimensional morphology, X-ray diffraction, X-ray photoelectron spectroscopy and Fourier transform infrared absorption spectroscopy. The influence of the superhydrophobic film layer on the corrosion resistance of TA2-welded joints was investigated using classical electrochemical testing methods. Findings The characterization results showed that the super hydrophobic TiO2 ceramic membrane was successfully constructed on the surface of the TA2-welded joint, and the construction of the super hydrophobic film greatly improved the corrosion resistance of the TA2-welded joint. Originality/value The superhydrophobic TiO2 ceramic membrane has excellent corrosion resistance. The micro nanostructure in the superhydrophobic film can intercept air to form an air layer to prevent the corrosion medium from contacting the surface, thus, improving the corrosion resistance of the sample.

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Ultrastrong nanotwinned titanium alloys through additive manufacturing

Cited by 78 publications

References 50 publications

Phase Engineering of Nanostructural Metallic Materials: Classification, Structures, and Applications

Phase Engineering of Nanostructural Metallic Materials: Classification, Structures, and Applications

New trends in additive manufacturing of high-entropy alloys and alloy design by machine learning: from single-phase to multiphase systems

Construction of superhydrophobic film on the titanium alloy welded joint and its corrosion resistance study

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