Results 1 to 10 of about 30,563 (351)
Research progress in freckles of single crystal superalloys
Cailiao gongcheng, 2021 To meet the development needs of advanced aeroengines,the structure of aeroengine turbine blades is becoming increasingly complex, and the content of refractory elements is increasing in single crystal superalloys, which are the preferred materials for ...
WANG Zhi-cheng +7 more
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Transition to chaos in directional solidification [PDF]
Physical Review Letters, 1991 Summary: Interface dynamics are analyzed theoretically in the quasilocal regime of directional growth explored by experiments on liquid crystals. We discover ``vacillating-breathing'' (VB) modes. Upon variation of the growth speed the interface motion enters a chaotic regime via a quasiperiodicity scenario.
Müller-Krumbhaar, H. +2 more
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Research Progress on Numerical Simulation of Temperature Field during Directional Solidification of Nickel-based Single Crystal Turbine Blades [PDF]
TeshugangAs one of the indispensable core components of advanced aero-engine， nickel-based single crystal turbine blades （hereinafter referred to as single-crystal blades） have extremely demanding requirements in terms of dimensional accuracy of the hollow ...
Sun Jiayi +4 more
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Journal of Materials Research and Technology, 2020 Aluminum matrix composite, as a new electronic packaging material, has attracted the attention of researchers. Effect of magnetic field on gradient structure of aluminum matrix composites (Al-21 wt.%Si and Al-40 wt.%Cu) has been investigated during ...
Shaodong Hu +6 more
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Journal of Materials Research and Technology, 2022 In order to improve the heat insulation effect, a multi-shell mold structure can be applied in directional solidification. As this kind of mold is gradually immersed into water, higher temperature gradient will be formed between the upper and the bottom ...
Jingying Xu +4 more
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Effect of growth rate on microstructure evolution in directionally solidified Ti–47Al alloy
Heliyon, 2022 The microstructures and morphologies of directionally solidified Ti–47Al alloys with different growth rates ranging from 1 to 200 μm/s were investigated using the Bridgman directionally solidified method.
Tong Liu +7 more
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Onset of sidebranching in directional solidification [PDF]
Physical Review E, 2010 We use a computationally efficient phase-field formulation [B. Echebarria, Phys. Rev. E 70, 061604 (2004)] to investigate the origin and dynamics of sidebranching in directional solidification for realistic parameters of a dilute alloy previously studied experimentally [M. Gorgelin and A. Pocheau, Phys. Rev. E 57, 3189 (1998)].
Echebarría Domínguez, Blas +2 more
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Influence of Directional Solidification on the Mechanical Properties of Cu-Al-Be-Nb-Ni Alloy [PDF]
Materials Research, 2019 Copper-based polycrystalline shape memory alloys (SMAs) have limitations for many practical applications due to their low superelasticity and low ductility.
Gabrielly de Lucena Tiburtino +5 more
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The columnar to equiaxed transition of horizontal unsteady-state directionally solidified Al-Si alloys [PDF]
Materials Research, 2014 Experiments were conducted to investigate the influence of thermal parameters on the columnar to equiaxed transition during the horizontal unsteady-state directional solidification of Al-Si alloys.
Diego B. Carvalho +5 more
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工程科学学报, 2023 A specific columnar crystal structure is obtained using the directional solidification technique, which has a substantial effect on the optimization of the axial mechanical properties of the alloy.
Hong-bo ZENG +4 more
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