Synthesis of Multicomponent Coatings by Electrospark Alloying with Powder Materials
and Audrius Zunda 3,*
Round 1
Reviewer 1 Report
Abstract
High wear and corrosion resistance properties of coatings on substrate 22 of structural steels C45, Cr18Ni10T, 40Cr13, titanium alloys OT4 and BT6 have been obtained.
In abstract wear characteristics are mentioned, but no wear related experiments are not explained. Monitoring only mass loss is not quantification of wear behavior.
Introduction
Only 4 references for the Introduction chapter is insufficient.
Please, include state of the art. Some of the suggested references are following:
1. Kefeng Lu , Jian Zhu, Wenqing Ge and Xidong Hui , Progress on New Preparation Methods, Microstructures, and Protective Properties of High-Entropy Alloy Coatings, Coatings 2022, 12, 1472. https://doi.org/10.3390/coatings12101472
2. Claudia Barile , Caterina Casavola , Giovanni Pappalettera and Gilda Renna, Advancements in Electrospark Deposition (ESD) Technique: A Short Review, Coatings 2022, 12, 1536. https://doi.org/10.3390/coatings12101536
3. T. G. Penyashkia, D. D. Radevb, M. K. Kandevac, and G. Kostadinova, Structural and Tribological Properties of Multicomponent Coatings on 45 and 210Cr12 Steels Obtained by Electrospark Deposition with WC-B4C-TiB2-Ni-Cr-Co-B-Si Electrodes, SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY Vol. 55 No. 6 2019
4. Gifty Oppong Boakye , Laura E. Geambazu , Arna M. Ormsdottir , Baldur G. Gunnarsson , Ioana Csaki , Francesco Fanicchia , Danyil Kovalov and Sigrun N. Karlsdottir , Microstructural Properties and Wear Resistance of Fe-Cr-Co-Ni-Mo-Based High Entropy Alloy Coatings Deposited with Different Coating Techniques, Appl. Sci. 2022, 12, 3156. https://doi.org/10.3390/app12063156
5. Kashif Mehmood , Malik Adeel Umer , Ahmed Umar Munawar , Muhammad Imran , Muhammad Shahid , Muhammad Ilyas , Rabeeka Firdous , Humaira Kousar and Muhammad Usman , Microstructure and Corrosion Behavior of Atmospheric Plasma Sprayed NiCoCrAlFe High Entropy Alloy Coating, Materials 2022, 15, 1486. https://doi.org/10.3390/ma15041486
Fig.4. is covering part of the text. Probably it is Title of Fig.5.
At the Fig 4. and 5. please indicate (mark) phases.
Please, correct typing errors MAX phases: Ti2AlC, Ti2AlN, Ti3SiC.
Figure 8. The title for the Fig.8. could not be seen. Please correct.
Tribological tests of samples. Please explain what standard method was used.
Evaluation of the tribological characteristics of coatings on steel C45 obtained by 317 ESA with TiAlC, TiAlN, and TiSiC compositions. Tribological tests were used to evaluate wear resistance efficiency of obtained coatings. The results are presented by the wear curves (Fig. 10).
Mass loss is only indicator of damaged caused by wear, detailed info could be obtained by microstructure analysis of the damage.
Figure 10. Coating wear at a specific load of 2 MPa. Y axe is mass loss.
Is wear results just mass loss caused by wear, as wear unts are mg.
As a result of such treatment, the hardness and wear resistance of the formed layers significantly increase [14]. That show also our wear resistance results (fig. 10). Rewrite or add some explananation related to correlation with ref 14.
Conclusion
4.The wear resistance of coatings, obtained by electrospark alloying the steel C45
surface with TiAlC, TiAlN and TiSiC compositions, has been studied and it has been discovered that all of them were much more wear resistant than uncoated steel.
rewrite this part, put the actual testing, which is type of friction test. Only mass los was presented, so this results coud be mentioned in Conclusion.
Author Response
We would like to thank the reviewer for reviewing our article and providing comments and suggestions. Sorry for such a delayed response. The article is being adjusted based on the comments and will be presented in the updated form in a quick time. We will respond to some observations for wear test here:
Point 1a. In abstract wear characteristics are mentioned, but no wear related experiments are not explained. Monitoring only mass loss is not quantification of wear behavior. 1b. Tribological tests of samples. Please explain what standard method was used. 1c. Mass loss is only indicator of damaged caused by wear, detailed info could be obtained by microstructure analysis of the damage. 1d. Is wear results just mass loss caused by wear, as wear units are mg.
Yes we agree. It was not properly exlained. The wear tests was made according Standard test method for ranking resistance of materials to sliding wear using Block-on-Ring wear test (ASTM G77). Block was as coated sample, and C45 steel ring as cauntersample. Not only the loss of mass was studied, but also the structure of the contact surfaces (by optic microscopy). The specificity of the wear mechanism was assessed: whether abrasive or adhesive wear prevailed.
Reviewer 2 Report
This paper studies the synthesis of multicomponent coatings by electrospark alloying with powder materials, which has potential application value in engineering. In order to meet the requirements of high-quality publication of the journal, it is recommended to consider the following suggestions,
1) There is no quantitative data in Abstract Section.
2) Introduction Section needs to be rewritten. In addition to ESA method, is other non-traditional machining feasible for this problem? What are the advantages and disadvantages of each? You need to give your own analysis in this section. The following references may have some value and significance, so you can consider quoting them.
[1] The structure and properties of high-entropy alloys and nitride coatings based on them[J]. Russian Chemical Reviews, 2014, 83(11):1027-1061.
[2] Progress in non-traditionalmachining of amorphous alloys[J]. Ceram Int, 2023, 49(2):1585–1604. https://doi.org/10.1016/j.ceramint.2022.10.349
3) The innovation of this article is not reflected in the first Section and needs to be modified.
4) The second Section needs to add pictures of the experimental device.
5) Why is there no subsection No. in the third Section?
6) Some paragraph need to be imporved, such as "A similar picture is observed in the case of processing in the mode with the energy 112
of pulsed discharges equal to Ep = 0.9 J (Fig. 3)."
7) The mehtod proposed in this paper needs to be compared with the previous literature, otherwise it cannot reflect innovation.
8) There is no quantitative data in the Conclusion Section.
9) There are few references in the last three years.
Author Response
Dear Mr. Expert, the team of authors of the article „Synthesis Of Multicomponent Coatings By Electrospark Alloying With Powder Materials“ bring you gratitude and appreciation for the detailed analysis of our article and recommendations, which helped to significantly improve its content.
Our response to your notes:
P1. In the ABSTRACT section, we considered your comments and added quantitative research results.
P2. and P3. In the INTRODUCSION section, we revealed the novelty and advantages of the used research method, in which for the first-time systematic studies of the regularities of the process of electrospark alloying with dispersed materials were carried out and new knowledge was obtained.
P4. Picture of experimental device for ESA improved (fig.1)
P5. Numbers of sections fixed.
P6. The improvement of some paragraphs was done.
P8. Conclusions improved.
P9. List of used references supplemented. The problem is, thain the last few years, there are not many articles devoted to the development of electrospark alloying technology. Most of the attention is given to the study of the properties of the surfaces obtained by ESA. And this work is aimed more at improving the technology itself and showing its influence on the properties of the coatings.
Reviewer 3 Report
The article is devoted to obtaining multicomponent coatings by electrospark fusion with powder materials
the article can be published in the journal, but after revisions
1. Figure 6,7 missing the Rietvelle method of calculation to determine the concentration of phases Ti, TiC, TiAlC, TiAlN and TiSiC
2. Figure 4,8,9 I ask for more details on hardness, crack resistance. how homogeneous is the coating?
3. It is worth building a "box and whisker" to determine the homogeneity of the property by analogy: 10.3390/coatings13010138, https://doi.org/10.3390/met12071089
4. The caption of figure 5 was lost during typesetting
5. Please expand the list of references, all the references listed are older than 10 years, please update the information. Add 50% of references 2018-2023
6. What is missing is a comparative table of how unique your approach is and how much of the presentation of the research is new. What is the novelty of the results?
7. Not enough data on the tensile strength, please read the standard and also expand the material ISO 4624:2002
8.
Author Response
Dear Mr. Expert, the team of authors of the article „Synthesis Of Multicomponent Coatings By Electrospark Alloying With Powder Materials“ bring you gratitude and appreciation for the detailed analysis of our article and recommendations, which helped to significantly improve its content.
P2. and P7.: The presented work is intended to show how the use of additional powdered material increases the efficiency of ESA technology. A detailed description of the investigation of the properties of the resulting coatings would be the goal of another article. Here, by presenting some of the properties of the coatings, we wanted to show how the proposed improvement in ESA technology is reflected in the properties of the coatings. Since hardness is directly related to wear resistance, that's why we provided it.
P4. Improved
P5. References list improved.
More detailed explanations will be uploaded in the appendix. Thank you again.
Reviewer 4 Report
Dear Authors,
I have reviewed your paper titled: "Synthesis of Multicomponent Coatings by Electrospark Alloying with Powder Material".
The paper fulfils the aims and scope of Coatings journal, and can be considered for potential publication. I have some suggestions, which are listed below.
General remarks:
- Please add the quantitative results into the abstract.
- You have presented only 14 references. In my opinion it should be extended. Moreover, you have not presented any references published in last three years. Firstly, the science made big step forward last years, so it is hard to show relevant scientific background without newly published references. Moreover, the greater number of newest citations provides to increased visibility of your paper in scientific databases:
Introduction:
- This part is very short. Moreover, it is not supported with newest references.
- Please extend introduction. You should underline the state of art and the novelty of your investigations. What new has been proposed? Which problems may be minimized following your proposal?
- You should show the usage of investigated materials, problems occured during their procesing, methods etc..
Materials and methods:
- "transition metals (Ti, Ta, W)" - have you used pure metals or alloys based on these metels?
- Have you used any requirements from relevant standard during tests? If yes, please mark these standards. If not, the description should be presented.
Results:
- Have you performed any statistical analysis? How many measurements were carried out to show direct value (e.g. Fig. 2)? If it is possible, please show standard deviation bars.
- Fig. 2, Fig. 3 - chance "," to "." in numbers.
- Presented scale bars are in different style, even in the sam Fig. - Fig. 5 (text is behind pictures - please improve).
- All micrographs presents view of hardness measurement points. Could you show pictures without them?
- All micrographs should include scale bars, e.g., in Fig. 9 scale bars are missing.
Discussion:
- This part is the strongest in your paper.
Conclusions:
- Please support conclusions with the quantitative results.
Author Response
Dear Mr. Expert, the team of authors of the article „Synthesis Of Multicomponent Coatings By Electrospark Alloying With Powder Materials“ bring you gratitude and appreciation for the detailed analysis of our article and recommendations, which helped to significantly improve its content.
We will try to answer your comments:
P1. General marks: Abstract was improved. And References list was improved. The paper focuses on increasing the efficiency of the ESA technology, while the properties of the resulting coatings were a secondary objective. Therefore, it was not easy to find many very new works aimed specifically at increasing the efficiency of the technology.
P2. Introduction: Introduction was improved.
P3. Materials and methods: The alloys of Ti, Ta and W was used in experiment, not pure metals. For wear tests we use ASTM G77 standard.
P4. Results: We will explain it in appendix file.
P5. Conclusion: Conclusions was improved.
Round 2
Reviewer 1 Report
After corrections, the manuscript is acceptable for publication.
Author Response
Dear Reviewer, thank you very much for taking the time to read and review our article. Your comments and suggestions helped us significantly improve the quality of the article in a scientific and editorial sense. While correcting the article, we tried to take into account each of your comments and suggestions.
The last corrections affected the illustrations: the enlarged fonts were unified.
Reviewer 2 Report
The authors have addressed all my concerns.
Author Response
Dear Reviewer, Thank you very much for taking the time to read and review our article. Your comments and suggestions helped us significantly improve the quality of the article in a scientific and editorial sense. While correcting the article, we tried to take into account each of your comments and suggestions.
The last corrections affected the illustrations: the enlarged fonts were unified.
Reviewer 3 Report
The article can be accepted
Author Response
Dear Reviewer, Thank you very much for taking the time to read and review our article. Your comments and suggestions helped us significantly improve the quality of the article in a scientific and editorial sense. While correcting the article, we tried to take into account each of your comments and suggestions.
The last corrections affected the illustrations: the enlarged fonts were unified.
