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that: the dystectic Mg3Sb2 particles formed by Sb and Mg are distributed in the front of dendrite, restrain the growth of the secondary phase and then change the morphology of the secondary phases, which... magnesium alloy consists of the gray matrix and the secondary phases which are semi-continuous strip-like phase in the front of dendrite and blocky phase distributed in the matrix respectively. The as-cast......
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Phase field modeling of dendrite growth Chengzhi WANG1,Yiyi LI2,Yutuo ZHANG1,Dianzhong LI2 (1.Shenyang Ligong University,Shenyang 110168,China;2.Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China) Abstract:Single dendrite and multi-dendrite growth for A1-2 mol pct Si alloy during isothermal solidification are simulated by phase field method. In the case of single......
Trans. Nonferrous Met. Soc. China 31(2021) 715-725 Transformation mechanism of secondary phase and its effect on intergranular corrosion in laser wire filling welding Ni-based alloy/304 stainless..., Dalian 116024, China Received 28 February 2020; accepted 30 November 2020 Abstract: To clarify the transformation mechanism of secondary phase and the mechanism of intergranular corrosion in laser......
stress amplitudes. The results show that Mg2Si and secondary silicon phase could have a strong hindrance effect on the movement of dislocations during the fatigue process. The fatigue behavior is strongly dependent on the microstructure of material. Key words: Al-Si-Mg alloy; dislocation; Mg2Si; secondary silicon phase 1 Introduction Cast Al-Si-Mg alloy as a new generation of aluminum alloy......
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J. Cent. South Univ. (2017) 24: 48-55 DOI: 10.1007/s11771-017-3407-y Liquidus and phase equilibria in CaO-SiO2-5%MgO-20%Al2O3-TiO2 system SUN Li-feng(孙丽枫)1, 2, SHI Jun-jie(石俊杰)1, 2, ZHANG Bo(张波)1, 2... technique (SHTT) and high temperature equilibrium technique were combined to investigate the phase diagram of the CaO-SiO2-5%MgO-20%Al2O3-TiO2 system. The 1300 °C to 1500 °C liquidus lines......
) secondary particles in 7××× aluminum alloys during annealing DAI Xiao-yuan1, 2, XIA Chang-qing2, PENG Xiao-min2 (1. School of Automobile and Mechanic Engineering, Changsha University of Science...(Sc, Zr) secondary particles in Al-Zn-Mg-Cu-Zr alloy containing Zr during annealing were studied by transmission electron microscopy. The results show that the bean-like Al3(Sc, Zr) secondary......