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during and after recalescence. The large undercooling is sufficient to completely bypass the high temperature phase field. Key words: Nd-Si eutectic alloys; intermetallics; long drop tube.... The change of coarseness of microstructure is due to different cooling rates during and after recalescence. The large undercooling is sufficient to completely bypass the high temperature phase......
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Interlamellar spacing and average interface undercooling of irregular eutectic in steady-state growth MENG Guang-hui(孟广慧), LIN Xin(林 鑫), HUANG Wei-dong(黄卫东) State Key Laboratory...; Abstract: The average lamellar spacing and interface undercooling in steady-state irregular......
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peritectic reaction occurs at a positive temperature gradient (from low temperature to high temperature). Figure 8 shows that the constitutional undercooling forms in the remelting solid-α front during... are analyzed in terms of the constitutional undercooling criterion. Key words: peritectic reaction; Cu-Ge alloys; directional solidification; microstructure; constitutional undercooling 1 Introduction......
rule and Scheil’s equation, and the exact value is determined by the effect of back diffusion, the initial undercooling and the cooling rate. Key words: Ni-Cu alloy; rapid solidification; diffusion; undercooling 1 Introduction The major aim of solidification science is to optimize the mechanical and physical properties of solidified alloys by microstructure control. Such an aim can be fulfilled......
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; 文章编号:1672-7207(2015)08-2837-06 Effect of Al-5Ti-0.2C refiner on nucleation and undercooling degree of 7085 aluminum alloy NING Jiajie, LI Xiaoqian, JIANG Ripeng, HUANG Mingzhe (State Key Laboratory of High Performance Complex Manufacturing, School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China) Abstract......
Trans. Nonferrous Met. Soc. China 26(2016) 2633-2640 Effects of melt overheating degree on undercooling degree and amorphous forming of Nd9Fe85-xTi4C2Bx (x=10, 12) magnetic alloys Meng-lin YANG, Jing... Abstract: The effects of melt overheating degree on the undercooling degree and resultant solidification structures of Nd9Fe85-xTi4C2Bx (x=10, 12) glass-forming alloys were studied by differential thermal......
