粉末冶金多孔高氮奥氏体不锈钢的制备及性能

胡玲,李烈军,彭翰林,倪东惠,陈松军,张伟鹏

Fabrication and Properties of Powder Metallurgical Porous High Nitrogen Austenitic Stainless Steel

Ling HU,Liejun LI,Hanlin PENG,Tungwai NGAI,Songjun CHEN,Weipeng ZHANG

表3 多孔高氮不锈钢在0.9%的NaCl溶液中极化后的电化学参数

Table 3 Corrosion parameters of the as-fabricated porous high-nitrogen stainless steel from the polarization curves

Sample codes Ecorr/V Icorr/mA·cm-2 Rp/Ω·cm2 ba/V·dec-1 bc/V·dec-1 Corrosion rate/mm·a-1 N1120-10-374 -0.757 0.001 3742.0 0.142 0.148 0.007 N1120-20-374 -0.851 0.153 130.4 0.374 0.303 0.277 N1120-30-374 -0.886 0.262 93.4 0.209 0.169 2.211 N1120-40-374 -0.985 0.497 105.5 0.185 0.169 4.817 N1200-30-374 -0.832 0.233 115.0 0.196 0.174 1.641 N1250-30-374 -0.869 0.067 209.4 0.086 0.087 0.416