Finite Element Method for Thin Film Corrosion Modelling: Where We Advanced and Where We would like to Advance?

Round 1

Reviewer 1 Report

The topic is interesting on modeling of thin film corrosion. Please see the comments as follows. 1. Please include more specific information in the abstract to help readers understand what they can learn from this article. For example, what are the existing models you've reviewed? What are your conclusion/prospects? 2. Introduction: provide more background on why the thin film corrosion is important and worth studying? 3. Suggest to include some illustrations (figures) to support your claims, from the reviewed work and authors' previous work.

Author Response

Comment 1. Please include more specific information in the abstract to help readers understand what they can learn from this article. For example, what are the existing models you've reviewed? What are your conclusion/prospects?

Reply. The abstract is modified accordingly. The new parts are highlighted in yellow.

Comment 2. Introduction: provide more background on why the thin film corrosion is important and worth studying?

Reply. The last paragraph of the introduction is now added and highlighted in yellow to address this comment accordingly.

Comment 3. Suggest to include some illustrations (figures) to support your claims, from the reviewed work and authors' previous work.

Reply. We have added the suggested figures; please see Figures 1 to 4 are now added.

Reviewer 2 Report

The authors present and overview of finite element method to model thin film corrosion. The text is in the form of critical review, with achievements and remaining open questions. Indications on how to tackle these open questions are provided. The paper deserves publication.
An important contribution of the authors to the field concerns is to take into account moving boundaries. Could authors say some words on applicability of boundary element methods (BEM) in this context.
Also, another method suited for the modelling of moving boundaries is cellular automata. Could such approaches be coupled with FEM as it is done with models treating mechanical constraints by FEM and corrosion with cellular automata.

Author Response

Comment 1. An important contribution of the authors to the field concerns is to take into account moving boundaries. Could authors say some words on applicability of boundary element methods (BEM) in this context.

Reply. We appreciate the reviewer for the suggestion. Our perspective paper is about FEM in thin film corrosion modeling and we would like to keep the paper very concise and straightforward. Nevertheless, we have mentioned other existing techniques and provided some references for the interested readers in the second paragraph of the introduction.

Comment 2. Also, another method suited for the modelling of moving boundaries is cellular automata. Could such approaches be coupled with FEM as it is done with models treating mechanical constraints by FEM and corrosion with cellular automata.

Reply. Please see our reply to comment 1.