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  1. No Access

    Article

    Widening the Martensitic Hysteresis in Ni47Ti44Nb9 Shape Memory Alloy by Grain Refinement

    Widening the martensitic hysteresis ( \({T}_{\text{Dhys}}\) T Dhys

    X. D. Cao, Q. C. Fan, M. Y. Sun, Y. H. Zhang… in Metallurgical and Materials Transactions A (2024)

  2. No Access

    Article

    Factors Determining the Maximum Recovery Stress of the Ni47Ti44Nb9 Alloy During Constrained Heating

    The maximum recovery stress is an essential parameter for evaluating the reliability of shape-memory alloys. In this study, the factors that determine the maximum recovery stress of the Ni47Ti44Nb9 shape-memory a...

    X. D. Cao, Y. H. Zhang, M. Y. Sun… in Metallurgical and Materials Transactions A (2022)

  3. No Access

    Article

    Phase Transformation and Recovery Stress of Ni47Ti44Nb9 Alloy During Constrained Heating and Cooling

    The phase transformation and recovery stress of pre-deformed Ni47Ti44Nb9 alloy are systematically investigated during constrained heating, cooling and thermal cycling. Recovery stress is determined by a phase tra...

    Q. C. Fan, M. Y. Sun, Y. Y. Wang, K. H. Sun… in Metallurgical and Materials Transactions A (2020)

  4. No Access

    Article

    Effect of Annealing Temperature on Annealing Twins and Shape Memory Effect in Hot-Forged Co-23.9Ni-5.6Si Alloy

    Effects of annealing temperature on shape memory effect (SME), annealing twins, and deformation behavior in a hot-forged Co-23.9Ni-5.6Si alloy were studied. The results showed that a low density of the anneali...

    X. Yang, D. Wang, Q. Liao, S. L. Wang… in Metallurgical and Materials Transactions A (2019)

  5. No Access

    Article

    Effect of W Contents on Martensitic Transformation and Shape Memory Effect in Co-Al-W Alloys

    To clarify the effect of W contents on the shape memory effect (SME) in the Co-Al alloys and its influencing mechanism, the SME, martensitic transformation, and deformation behavior were studied in the Co-7Al-...

    X. Yang, B. N. Qian, H. B. Peng, B. J. Wu… in Metallurgical and Materials Transactions A (2018)

  6. No Access

    Article

    Large recovery strain in Fe-Mn-Si-based shape memory steels obtained by engineering annealing twin boundaries

    Shape memory alloys are a unique class of materials that can recover their original shape upon heating after a large deformation. Ti-Ni alloys with a large recovery strain are expensive, while low-cost convent...

    Y.H. Wen, H.B. Peng, D. Raabe, I. Gutierrez-Urrutia, J. Chen… in Nature Communications (2014)

  7. Article

    Open Access

    Systematic Approach to Microstructure Design of Ni-Base Alloys Using Classical Nucleation and Growth Relations Coupled with Phase Field Modeling

    To analyze the formation of bimodal particle size distributions during precipitation, the dynamic competition for supersaturation by growth of existing precipitates and nucleation of new particles was studied ...

    Billie Wang, Y.H. Wen, Jeff Simmons… in Metallurgical and Materials Transactions A (2008)

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  8. No Access

    Article

    Decontamination of radioactive cesium from natural NaCl by amide-type open-chain crown ethers

    An attempt has been made to develop a radiochemical methodology for the decontamination of a trace amount of radioactive cesium from a bulk amount of natural NaCl by liquid-liquid extraction (LLX). Open chain ...

    Y. H. Wen, S. Lahiri, Z. Qin, X. L. Wu… in Journal of Radioanalytical and Nuclear Che… (2002)

  9. No Access

    Article

    Production of multitracers by 80 MeV/A 12C irradiation on thick gold foil

    Multitracers were prepared by 80 MeV/A 12 C irradiation on thick gold foil at Heavy Ion Research Facility, Institute of Modern Physics, Lanzhou, China. The bulk gold was removed quantitatively from the multitrace...

    S. Lahiri, Qin Zhi, Y.H. Wen, X.L. Wu in Journal of Radioanalytical and Nuclear Chemistry (2002)

  10. No Access

    Chapter and Conference Paper

    Analysis of the Role of the Stress on Martensitic Transformation in Ferrous Alloys Considering Numerical Modelling and Experimental Results

    A 2D model has been established in order to simulate some aspects of the martensitic transformation under uniaxial external stress. Two mechanical behaviours of the phases are considered, elastic and elasto-pl...

    Y. H. Wen, S. Denis, E. Gautier in IUTAM Symposium on Micro- and Macrostructu… (2002)

  11. No Access

    Article

    Interaction energy between martensitic variants

    Recent approaches to the simulation of stress-assisted or strain-induced martensitic transformation in elastic-plastic materials consider the nonlocal dissipation as part of the thermodynamic description of th...

    G. Reisner, F. D. Fischer, Y. H. Wen… in Metallurgical and Materials Transactions A (1999)

  12. No Access

    Chapter and Conference Paper

    Micromechanical Approach by Finite Elements to the Microstructural Evolutions and Mechanical Behaviour of two Phase Metallic Alloys

    When a phase transformation occurs under stress and/or plastic straining, different phenomena are observed: the kinetics of the transformation and the morphology of the product phase are affected, and the ther...

    S. Denis, A. Hazotte, Y. H. Wen, E. Gautier in IUTAM Symposium on Micromechanics of Plast… (1996)