论文部分内容阅读
介绍了作者开发的、使用划伤电极法测出再钝化动力学参数ｉ０．β和Ｑｐ用于快速评价合金耐冲刷腐蚀性能的新方法，举出该方法应用的例子，进行了讨论．ｉ，β是初期再钝化动力学方程ｉ（ｔ）＝ｉ０ｅｘｐ（－βｔ）中的两个参数，Ｑｐ是以上式对时间０→ｔ积分结果：Ｑｐ＝（ｄｔ），文中解释了参数ｉ０，β和Ｑｐ的含义．ｉ０值或Ｑｐ值愈小，或β值愈大，则合金耐冲刷腐蚀性能愈好．９种合金在湿法磷酸料浆中试验表明：按Ｑｐ（或ｉ０，β）值对合金耐冲刷腐蚀性能排序结果同按传统的旋转试样冲刷腐蚀失重（１００ｈ试验）数据排序结果基本一致．
Introduced by the author, the kinetic parameters of reactivation i0 were determined using a scratch electrode method. β and Qp for rapid evaluation of alloy erosion-resistant corrosion resistance of new methods, cite examples of the application of this method are discussed. i and β are two parameters of the initial reactivation kinetics equation i (t) = i0exp (-βt), Qp is the result of integral integration of the time 0 → t as follows: Qp = (dt), the parameter i0 , Β and Qp meaning. The smaller the value of i0 or Qp, or the larger the value of β, the better the erosion resistance of the alloy. The results of nine kinds of alloys in wet-process phosphoric acid slurry show that the results of sorting corrosion-resistant corrosion resistance of alloy by Qp (or i0, β) values are basically the same as the data of the conventional rotary erosion-loss test (100h test).