Dissolution kinetics of steels exposed in lead-lithium and lithium environments
Dissolution kinetics of steels exposed in lead-lithium and lithium environments
复制标题
暴露在铅锂和锂环境中的钢的溶解动力学
DOI：
10.1016/0022-3115(92)90617-t
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发表时间：
1992
影响因子：
3.1
通讯作者：
P. Tortorelli
中科院分区：
文献类型：
--
作者：
P. Tortorelli
对316型不锈钢和Fe12Cr1MoVW钢在热对流Fe17at.%Li(500℃)和锂(600℃)中的失重动力学进行了分析。对于这两种钢，如果在溶解度驱动的传质占主导地位的温度下进行比较，则锂和 Pb17Li 的动力学相似。在本研究的温度下，基于平行线性反应动力学的模型准确地描述了 316 型不锈钢在两种液态金属中的重量损失曲线，而铁素体钢迅速实现了与时间呈线性的重量损失。因此，两种钢的动力学行为之间的差异可以根据奥氏体合金观察到的优先溶解反应和局部攻击来解释。
An analysis of weight loss kinetics was made for type 316 stainless steel and Fe12Cr1MoVW steel in thermally convective Fe17 at.% Li (500°C) and lithium (600°C). For both steels, the kinetics are similar in lithium and Pb17Li if the comparison is made at a temperature where solubility-driven mass transport dominates. At the temperatures of this study, a model based on paralinear reaction kinetics accurately described the weight loss curves for type 316 stainless steel in both liquid metals, while the ferritic steel rapidly achieved weight losses that were linear with time. The differences between the kinetic behavior of the two steels can thus be interpreted in terms of the preferential dissolution reactions and localized attack observed for the austenitic alloy.