采用电化学动电位再活化法（EPR）研究了不同固溶处理和敏化处理状态的304L不锈钢晶间腐蚀行为。结果表明，EPR法可灵敏并定量评价304L不锈钢的晶间腐蚀敏感性；测量时，推荐采用1．0mol／L H2SO4＋0．1mol／L KSCN混合溶液；304L晶间腐蚀敏化度随固溶处理时间的延长而减小，随敏化处理时间的延长而增大。
The degree of sensitization(DOS) in 304L stainless steel was studied by electrochemical potentio-kinetic reactivation(EPR) test. DOS of specimens reduced as the time of solution treatment increased and increased with the time of the sensitizing treatment. Mixed solution of 1.0 mol/L H2SO4 and 0. 01 mol/L KSCN is recommended as the testing solution 304L. EPR technique provides a sensitive, quantitative and nondestructive method for detecting the degrees of sensitization.
参考文献
| [1] | G. H. Aydogdu;M. K. Aydinol .Determination of susceptibility to intergranular corrosion and electrochemical reactivation behaviour of AISI 316L type stainless steel[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2006(11):3565-3583. |
| [2] | 方智.电化学动电位再活化法评价308L不锈钢的晶间腐蚀敏感性[J].腐蚀科学与防护技术,1996(02):87. |
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