含铜双相不锈钢在无菌/含菌环境下的耐蚀性研究

王永霞, 向红亮, 杨彩萍, 刘东

Corrosion Resistance of Copper-bearing Duplex Stainless Steel in Culture Medium without and with Bacteria

WANG Yongxia, XIANG Hongliang, YANG Caiping, LIU Dong

表3 与试样作用前后培养基的pH值及含菌量

Table 3 pH and bacteria content of culture medium

Sample pH Original pH After 24 h Bacteria count, cfu/mL Original Bacteria count, cfu/mL After 24 h Solution treatment without bacteria 7.4~7.6 7.4~7.6 --- --- Aging at 540 ℃ without bacteria 7.4~7.6 7.4~7.6 --- --- Aging at 560 ℃ without bacteria 7.4~7.6 7.4~7.6 --- --- Aging at 580 ℃ without bacteria 7.4~7.6 7.4~7.6 --- --- Solution treatment with bacteria 7.4~7.6 6.4~6.5 2.8×108 1.18×108 Aging at 540 ℃ with bacteria 7.4~7.6 6.4~6.6 2.8×108 0.70×108 Aging at 560 ℃ with bacteria 7.4~7.6 6.7~7.0 2.8×108 1.12×105 Aging at 580 ℃ with bacteria 7.4~7.6 6.7~6.8 2.8×108 1.29×107