不锈钢复合钢筋近界面微观组织演变及元素扩散动力学

郭星星, 帅美荣, 楚志兵, 李玉贵, 谢广明

Microstructure Evolution Near Interface and the Element Diffusion Dynamics of the Composite Stainless Steel Rebar

GUO Xingxing, SHUAI Meirong, CHU Zhibing, LI Yugui, XIE Guangming

表3 1100 ℃元素扩散模型拟合参数

Table 3 Fitting parameters of the element diffusion model at 1100 oC

Reduction rate Element A B1 B2 α β D1 D2 20% Fe 0.808 0.161 0.145 0.328 1.921 2.171 2.000 Cr 0.094 -0.102 -0.086 0.591 1.050 3.150 2.452 Ni 0.041 -0.043 -0.039 -2.304 2.444 1.353 0.905 40% Fe 0.801 0.153 0.154 1.014 1.386 1.509 1.204 Cr 0.087 -0.109 -0.077 1.185 1.554 4.085 1.679 Ni 0.043 -0.042 -0.042 -0.252 -1.445 2.827 6.530 60% Fe 0.801 0.156 0.153 1.308 0.862 2.005 3.193 Cr 0.096 -0.099 -0.085 2.952 1.443 0.859 3.311 Ni 0.042 -0.045 -0.042 0.790 -0.321 1.268 3.816