SIMULATION SUCCESS STORIES

The Naval Research Laboratory Uses Simulation for Corrosion Prevention

航空航天与国防安全

S. Qidwai
USNRL, DC, USA

腐蚀是一个广受关注的问题,美国平均每年在此方面的花费达数十亿美元。尤其对海军而言,它是第一大维修问题。因此,在海军研究实验室(NRL),研究人员正基于多物理场仿真开发有助于材料设计师制作耐腐蚀材料的方法。他们这样做的目的是可以更直观地了解金属组成和微观结构对金属中腐蚀面产生影响的过程。随着腐蚀凹坑在材料中的逐渐变化,结构的完整性会降低,从而可能导致材料或部件在载荷下失效。因此,他们的总体目标是量化微结构、腐蚀凹坑渐变及机械性能之间的关系。为了建立这种关系,他们正努力开发会考虑微结构的腐蚀全耦合电化学质量传递模型。除了诸如移动网格(ALE)技术这样的功能外,他们还准备使用 COMSOL Multiphysics® 与 LiveLink™ for MATLAB 联合开发自己的模型。

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