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  1. Article

    Numerical simulation of microstructure and microporosity morphology in directional solidification of aluminum-copper alloys: Effect of copper content and withdrawal rate

    Microporosity formed in the solidification process of Al alloys is detrimental to the alloy properties. A two-dimensional cellular automaton (CA) model was developed to simulate the microstructure and micropor...

    Wei Yuan, Hai-dong Zhao, Xu Shen, Chun Zou, Yuan Liu, Qing-yan Xu in China Foundry (2024)

  2. Article

    Exploring the effect of cooling rate on non-isothermal crystallization of copolymer polypropylene by fast scanning calorimetry

    Polypropylene is commonly used as a binder for ceramic injection molding, and rapid cooling is often encountered during processing. However, the crystallization behavior of polypropylene shows a strong depende...

    Yang Liao, Ye-yuan Hu, Kosuke Ikeda, Ryoji Okabe, Rui-fen Wu, Ryota Ozaki in China Foundry (2024)

  3. Article

    Droplet morphology analysis of drop-on-demand inkjet printing

    As an accurate 2D/3D fabrication tool, inkjet printing technology has great potential in preparation of micro electronic devices. The morphology of droplets produced by the inkjet printer has a great impact on...

    Hu-xiang **a, Takechi Kensuke, Tajima Shin, Kawamura Yoshiumi, Qing-yan Xu in China Foundry (2024)

  4. Article

    On establishment of novel constitutive model for directionally solidified nickel-based superalloys utilizing machine learning methods

    To enhance the accuracy of mechanical simulation in the directional solidification process of turbine blades for heavy-duty gas turbines, a new constitutive model that employs machine learning methods was deve...

    Jia-yan Sun, Rong Yin, Ye-yuan Hu, Yun-xiang Tan, Qing-yan Xu in China Foundry (2023)

  5. No Access

    Article

    Effects of pressure and plastic addition on sticking of fine iron ore particles in fluidized bed reduction

    The adhesion of fine iron ore particles during fluidized bed reduction was studied using pressurized visible fluidized bed laboratory equipment. The results showed that the optimal operating parameters for pur...

    Qi-yan Xu, Zhang-han Gu, Zhi-** Li in Journal of Iron and Steel Research Interna… (2021)

  6. Article

    Effects of process parameters on dimensional precision and tensile strength of wax patterns for investment casting by selective laser sintering

    Turbine blades, produced by the directional solidification (DS) process, often require high dimensional accuracy and excellent mechanical properties. A critical step in their production is the fabrication of w...

    Qian Wei, Run-nan Wang, Qing-yan Xu, Bai-cheng Liu in China Foundry (2018)

  7. Article

    Tensile behavior of Ti-6Al-4V alloy fabricated by selective laser melting: effects of microstructures and as-built surface quality

    Selective laser melting (SLM) is a powerful additive manufacturing (AM) technology, of which the most prominent advantage is the ability to produce components with a complex geometry. The service performances ...

    Pan Tao, Huai-xue Li, Bai-ying Huang, Quan-dong Hu, Shui-li Gong in China Foundry (2018)

  8. No Access

    Article

    Effects of embedding direct reduction followed by magnetic separation on recovering titanium and iron of beach titanomagnetite concentrate

    Embedding direct reduction followed by magnetic separation was conducted to fully recover iron and titanium separately from beach titanomagnetite (TTM). The influences of reduction conditions, such as molar ra...

    Chao Geng, Ti-chang Sun, You-wen Ma in Journal of Iron and Steel Research Interna… (2017)

  9. Article

    Numerical simulation on vacuum solution heat treatment and gas quenching process of a low rhenium-containing Ni-based single crystal turbine blade

    Numerical heat-transfer and turbulent flow model for an industrial high-pressure gas quenching vacuum furnace was established to simulate the heating, holding and gas fan quenching of a low rhenium-bearing Ni-...

    Zhe-xin Xu, **ang-lin Su, Qing-yan Xu, Bai-cheng Liu in China Foundry (2016)

  10. Article

    Optimization of flow control devices for a T-type five-strand billet caster tundish: water modeling and numerical simulation

    The optimization of flow control devices (FCDs) for a T-type five-strand billet caster tundish was carried out by water modeling and numerical simulation. In water modeling experiments, flow characteristics of...

    Fei He, Ling-ying Zhang, Qi-Yan Xu in China Foundry (2016)

  11. No Access

    Article

    Effect of sodium sulfate on direct reduction of beach titanomagnetite for separation of iron and titanium

    The effect of sodium sulfate on direct reduction of beach titanomagnetite, followed by magnetic separation, to separate iron and titanium was investigated. Direct reduced iron (DRI) with a high Fe content, low...

    En-xia Gao, Ti-chang Sun, Zhi-guo Liu in Journal of Iron and Steel Research Interna… (2016)

  12. Article

    Modeling of aluminum-silicon irregular eutectic growth by cellular automaton model

    Due to the extensive application of Al-Si alloys in the automotive and aerospace industries as structural components, an understanding of their microstructural formation, such as dendrite and (Al+Si) eutectic,...

    Rui Chen, Qing-yan Xu, Bai-cheng Liu in China Foundry (2016)

  13. No Access

    Article

    Fatigue Performance of Microalloyed High-strength Rebar and Analysis of Fracture Mechanism

    Fatigue performance of hot-rolled ribbed-steel bar with the yield strength of 500 MPa (HRB500) was studied with bend-rotating fatigue test at a stress ratio of R = − 1. It is determined by staircase method that i...

    Peng-yan Lu, Yu Liu, Hua-jie Wu, Gang Liu in Journal of Iron and Steel Research Interna… (2015)