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  1. No Access

    Article

    Dry-sliding tribological properties of AlCoCrFeNiTi0.5 high-entropy alloy

    High-entropy alloys (HEAs), with a new alloying concept, could possess many unique mechanical and functional properties. The current work investigated whether one such alloy offers potential for bearing surfac...

    Yuan Yu, Jun Wang, **-Shan Li, Hong-Chao Kou, Si-Zhe Niu, Sheng-Yu Zhu… in Rare Metals (2022)

  2. No Access

    Article

    Improved tensile properties of Al0.5CoCrFeNi high-entropy alloy by tailoring microstructures

    The effect of heat treatment on microstructure and tensile properties of as-cast Al0.5CoCrFeNi high-entropy alloy was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) equipped with ener...

    Si-Zhe Niu, Hong-Chao Kou, Jun Wang, **-Shan Li in Rare Metals (2021)

  3. No Access

    Article

    Evolution of microstructure and hardness in a dual-phase Al0.5CoCrFeNi high-entropy alloy with different grain sizes

    Cold-rolling with subsequent annealing was carried out to produce recrystallized structures with different grain sizes in an Al0.5CoCrFeNi high-entropy alloy to systematically investigate the grain growth behavio...

    Hao-Xue Yang, **-Shan Li, Tong Guo, William-Yi Wang, Hong-Chao Kou… in Rare Metals (2020)

  4. No Access

    Article

    Soldering of Zr-based bulk metallic glass and copper by Au–12Ge eutectic alloy

    Zr-based bulk metallic glass and copper with different surface roughness were soldered using low temperature eutectic Au–12Ge (wt%) solder on a thermomechanical simulator. The cross-sectional microstructures o...

    Jun Wang, **g Cui, Hong-Chao Kou, Heng Guan, **-Shan Li in Rare Metals (2019)

  5. No Access

    Article

    Hot corrosion behavior and mechanical properties degradation of a Ni–Cr–W-based superalloy

    The effect of molten salts on the mechanical properties of a Ni–20Cr–18W (wt%)-based superalloy was investigated in this work. The hot corrosion characteristics and the microstructural evolution during the ho...

    Rui-Feng Dong, Tie-Bang Zhang, Rui Hu, Hong-Chao Kou, **-Shan Li in Rare Metals (2017)

  6. No Access

    Article

    Physical properties of WSTi3515S burn-resistant titanium alloy

    Development of burn-resistant titanium alloys is the most direct way of mitigating the ignition and propagation of titanium fires in jet engines. WSTi3515S alloy (Ti–35V–15Cr–0.3Si–0.1C) is a new high alloying...

    Yun-** Lai, **-**ang Zhang, Xue-Min Zhang, **ang-Hong Liu, Yong Feng… in Rare Metals (2016)

  7. Article

    Effect of mold temperature and casting dimension on microstructure and tensile properties of counter-gravity casting Ti-6Al-4V alloys

    The cast Ti-6Al-4V alloy bars with different section sizes were fabricated by investment casting at counter-gravity condition with the mold temperatures of 300 ° C and 650 ° C, respectively. The microstructure...

    Shou-yin Zhang, **-shan Li, Hong-chao Kou, Jie-ren Yang, Guang Yang… in China Foundry (2016)

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  8. No Access

    Article

    Solidification microstructure characteristics of Ti–44Al–4Nb–2Cr–0.1B alloy under various cooling rates during mushy zone

    Beta-solidifying TiAl alloy has great potential in the field of aero-industry as a cast alloy. In the present work, the influence of cooling rate during mushy zone on solidification behavior of Ti–44Al–4Nb–2Cr...

    Peng Han, Hong-Chao Kou, Jie-Ren Yang, Guang Yang, **-Shan Li in Rare Metals (2016)

  9. No Access

    Article

    Solidification characteristics of high Nb-containing γ-TiAl-based alloys with different aluminum contents

    The effect of Al content on the microstructure and solidification characteristics of Ti–Al–Nb–V–Cr alloys in as-cast and isothermally treated states was investigated using X-ray diffraction (XRD), scanning ele...

    Yi Liu, Rui Hu, Hong-Chao Kou, Jun Wang, Tie-Bang Zhang, **-Shan Li… in Rare Metals (2015)

  10. No Access

    Article

    Microstructure Evolution and Phase Transformation of Ti–6.5Al–2Zr–Mo–V Alloy During Thermohydrogen Treatment

    Thermohydrogen treatment (THT) is an effective way to refine microstructure and improve the mechanical properties of the titanium alloys. In the current work, as-cast Ti–6.5Al–2Zr–Mo–V alloy was hydrogenated ...

    Hong-Chao Kou, Han-Lei Zhang, Yu-Dong Chu… in Acta Metallurgica Sinica (English Letters) (2015)

  11. No Access

    Article

    Kinetics of orthorhombic martensite decomposition in TC21 alloy under isothermal conditions

    The kinetics of martensite decomposition in TC21 alloy was investigated at isothermal conditions in the temperature range 500–850 °C. The dilatometry technique was utilized to trace the transformation process ...

    Bin Tang, Hong-Chao Kou, Yi-Hong Wang, Zhi-Shou Zhu… in Journal of Materials Science (2012)

  12. No Access

    Article

    Coherent elastic energy calculation of ω particles in β matrix for Zr–Nb alloys

    The misfit and coherent elastic energy caused by ω particles in β matrix is quantitatively calculated in this study. First, the coherent strain matrixes for four ω variants are established including the misfit...

    Bin Tang, Hong-Chao Kou, Hui Chang, **-Shan Li, Lian Zhou in Journal of Materials Science (2011)

  13. No Access

    Article

    Limitation of the Johnson-Mehl-Avrami equation for the kinetic analysis of crystallization in a Ti-based amorphous alloy

    The primary crystallization of the Ti40Zr25Ni8Cu9Be18 amorphous alloy was studied by isochronal differential scanning calorimetry (DSC). The activation energy was determined by the Kissinger-Akahira-Sunose method...

    Jun Wang, Hong-chao Kou, Hui Chang… in International Journal of Minerals, Metallu… (2010)