Ag-Ni偏晶合金凝固过程研究
邓聪坤1,2,江鸿翔1,赵九洲1(
),何杰1,赵雷3
),何杰1,赵雷3
Study on the Solidification of Ag-Ni Monotectic Alloy
DENG Congkun1,2,JIANG Hongxiang1,ZHAO Jiuzhou1(),HE Jie1,ZHAO Lei3
),HE Jie1,ZHAO Lei3
图9. Ag-2.24%Ni和Ag-4.0%Ni合金试样心部基体过饱和度，富Ni相液滴/粒子形核率、数量密度和二维平均半径随凝固时间的变化曲线
Fig.9. Supersaturation (S, red line) of the matrix melt, nucleation rate (I, green line), number density (N, black line) and <R>2D (blue line) of the Ni-rich droplets/particles in the center region of the sample as a function of time during cooling the Ag-2.24%Ni alloy (solid line) and Ag-4.0%Ni alloy (dashed line) for the samples of 5 mm in diameter (a), and the enlargement of the microstructure evolution during the period from 55 ms to 265 ms (b)
