Shouxin Xia

Yangzhou University

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Qinghang Wang

Yangzhou University

Li Wang

Guizhou University

E.T. Serra

Universidade do Porto

F. Rizzo

ENEA Frascati Research Centre

Haowei Zhai

Tianjin University

Bin Jiang

Chongqing University

Maurı́cio Barreto Lisboa

Eletrobras (Brazil)

Qin Xu

Xi'an International Studies University

Alexander Polasek

University of Bologna

Weiying Huang

Changsha University of Science and Technology

Cooperative Institutions

Chongqing University

Yangzhou University

Chinese Academy of Sciences

Centro de Estudos e Pesquisa em Saúde Coletiva

CITIC Group (China)

Brazilian Center for Research in Energy and Materials

Agência Nacional de Energia Elétrica

Eletrobras (Brazil)

Pontifical Catholic University of Rio de Janeiro

University of Science and Technology of China

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The influence of precursor preparation on the superconducting properties of Bi(2223) tapes

IEEE Transactions on Applied Superconductivity (1999)

Alexander Polasek Shouxin Xia Maurı́cio Barreto Lisboa Márcio Antônio Sens E.T. Serra

The effect of preparation of precursor powders on the formation of Bi-2223 phase and critical current density (J/sub c/) of OPIT tapes, was studied. The precursors were prepared by "one-powder" and "two-powder" methods. The results indicate that a sufficiently large fraction of second phases in the precursors is crucial for obtaining pure 2223 phase and high J/sub c/ values. It is also revealed that the (Sr,Ca)/sub 2/CuO/sub 3/ second phase promotes a faster phase transformation of 2212 to 2223 than other second phases in the precursors. Tapes prepared with "one-powder" precursor achieved J/sub c/ of 25.5 kA/cm/sup 2/, while the J/sub c/ for the tapes made from "two-powder" precursors had values of about 12 kA/cm/sup 2/.

10.1109/77.785012

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Achieving ultra-high extrusion speed and strength-ductility synergy in a BAZ531 magnesium alloy via differential-thermal extrusion

Materials Science and Engineering A (2024)

Zhongxi Zhang Shouxin Xia Xiang Chen Li Wang Qinghang Wang

Ductility (Earth science)

10.1016/j.msea.2024.147687

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Preparation of Bi-2223/Ag tapes by the partial melting route

Physica C Superconductivity (2004)

Shouxin Xia Alexander Polasek Luiz Antônio Saléh Bojan A. Marinković F. Rizzo

10.1016/j.physc.2004.03.159

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Preparation of Bi-2223/Ag tapes by controlling precursor powders

Physica C Superconductivity (2001)

Shouxin Xia Maurı́cio Barreto Lisboa Alexander Polasek Márcio Antônio Sens E.T. Serra

Morphology

10.1016/s0921-4534(01)00119-8

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Extrusion limit diagram of Mg–5Bi–3Al–1Zn alloy and effects of extrusion parameters on its microstructures and mechanical properties

Journal of Materials Research and Technology (2024)

Qinghang Wang Li Wang Jiaze Xu Haowei Zhai Yang Chen

Hot-compressive tests and finite element simulations were carried out to construct an extrusion limit diagram of a Mg–5Bi–3Al–1Zn (wt.%) alloy in this work. It was observed that 310 °C became a dividing line, below which the safe extrusion zone was narrow because the stress required to induce the plastic flow of alloy was higher than the pressure limit. Once the temperature exceeded this critical temperature, a wide safe extrusion zone controlled by the cracking limit was attained. The theoretical maximum ram extrusion speed was calculated as approximately 48 mm/s at 310 °C. No hot cracks occurred on the surface of alloys extruded at 30 and 44 mm/s; while at 56 mm/s, obvious orange peel defects were observed. Through further microstructural observation, the 44 mm/s extruded alloy exhibited a complete dynamic recrystallization structure with an average grain size of 21.9 μm, along with a relatively weak basal fiber texture (with a maximum pole intensity of 5.8) and plentiful nano-Mg3Bi2 phases. These microstructure features led to superior tensile properties (namely a tensile yield strength of 270 MPa, an ultimate tensile strength of 375 MPa and an elongation of 15%) at the high-speed extrusion.

Dynamic Recrystallization

10.1016/j.jmrt.2024.02.182

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Extrusion Limit Diagram of Mg-5bi-3al-1zn Alloy and Effects of Extrusion Parameters on its Microstructures and Mechanical Properties

Qinghang Wang Li Wang Haowei Zhai Yang Chen Shouxin Xia

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Forming limit diagram

10.2139/ssrn.4669411

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A novel multimodal feature fusion convolutional neural network to predict the mechanical properties of magnesium alloys

Materials Letters (2024)

Qin Xu Haowei Zhai Lianzhou Wang Shouxin Xia Bin Jiang

Feature (linguistics)

10.1016/j.matlet.2024.136863

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A property-oriented self-decision design strategy of low-alloyed rare earth-free magnesium alloys with a good strength-ductility synergy based on machine learning

Journal of Materials Informatics (2025)

Qin Xu Qinghang Wang Xinbing Zhao Shouxin Xia Li Wang

Machine learning (ML) is revolutionizing alloy design, yet traditional models face challenges with limited data and complex nonlinearities. Our study presents a self-decision design strategy that integrates target property determination, reverse and forward modeling, and feature importance analysis to optimize low-alloyed rare earth (RE)-free magnesium alloys for strength-ductility synergy. The strategy was validated with experimental data, leading to the development of a new Mg-2Al-1Zn-0.6Ca-0.4Mn (wt%) alloy processed at specific conditions, achieving a tensile strength of 344 MPa and an elongation-to-failure (EL) of 21.3% at room temperature. The discrepancies between experimental and predicted results were less than 5%, underscoring the accuracy of this approach. This streamlined design strategy not only promises to accelerate the development of low-cost, high-performance alloys but also minimizes the need for human intervention, thereby enhancing the efficiency and precision of alloy design.

Ductility (Earth science)

10.20517/jmi.2024.92

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Interpretable machine learning excavates a low-alloyed magnesium alloy with strength-ductility synergy based on data augmentation and reconstruction

Journal of Magnesium and Alloys (2025)

Qinghang Wang Qin Xu Shouxin Xia Li Wang Weiqi Wang

Ductility (Earth science)

10.1016/j.jma.2025.01.003

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Achieving extremely high speed extrusion and medium strength in a Mg–Bi–Si ternary alloy

Journal of Materials Research and Technology (2023)

Qinghang Wang Li Wang Haowei Zhai Shouxin Xia T.J. Chen

In this work, we report a new Mg–5Bi–1Si (wt.%) alloy showing a synergy of extrusion speed (ES) and tensile yield strength (TYS). At high ESs, it still has a good alloy surface, owing to the formation of thermally stable Mg3Bi2 and Mg2Si phases and the disappearance of small-sized low-melting divorced eutectic Mg3Bi2 phases for the as-cast alloy. During 70 m/min extrusion, the fragmentation of pre-existing eutectic (Mg3Bi2 and Mg2Si) phases and the dynamic precipitation of new (Mg3Bi2) phases impede the excessive grain coarsening and provide the effective strengthening contributions on the TYS of ∼253 MPa. After T5 peak aging, two types of basal Mg3Bi2 precipitates are found and further enhance the TYS to ∼280 MPa.

Ternary alloy

10.1016/j.jmrt.2023.11.135

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Citations (3)