We develop an electrochemical method aimed at the evaluation of in-service degradation of the mechanical properties of rolled steels of the frames of marine portal cranes. The regularities of decrease in the impact toughness of steels and their polarization resistance are analyzed. The correlation between these parameters forms a basis for the development of a nondestructive method aimed at prediction of the state of metal according to its brittle-fracture resistance. A series of engineering solutions is proposed for the practical realization of this method.

中文翻译：

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船用门式起重机钢材老化诊断的电化学方法

我们开发了一种电化学方法，旨在评估船用门式起重机框架的轧钢机械性能在使用中的退化。分析了钢的冲击韧性和耐极化性降低的规律。这些参数之间的相关性构成了开发无损方法的基础，该方法旨在根据金属的抗脆裂性来预测金属的状态。为该方法的实际实现提出了一系列工程解决方案。