Effects of Y₂O₃ Content on Wear Resistance and Corrosion Resistance of 316L/TiC Coating Fabricated by Laser Cladding

Round 1

Reviewer 1 Report

Thank you very much for giving the opportunity to read this manuscript. The authors have done a good job, the paper is well researched and reads well. However, there are some issues that need to be taken into account.

  

·         The introduction section is weak.

·         Why did carbides/nitride not form in the microstructure? Please explain.

·         What is the reason for using only one laser clading parameter? How have the laser clading variables selected for surface process?  explain in detail.

·         Could the heat input be calculated?

·         Macro photos of the laser cleading specimens should be added to the article.

·         There need to be more Optics and SEM images. Please provide these.

·         There need to be more SEM-EDS or S/TEM-EDS, Mapping must be done.

·         The Conclusions section is weak. The Conclusions section should be revised.

·         Please add new references.

·         What is the novelty of this work ?

·         Some words and scales in the figures need to be more readable.

·         Surface modification of stainless steels, corrosion behavior, microstructure, and other relevant properties of these materials should be included in the article. The following literature is for your reference:

 https://doi.org/10.20964/110433

https://doi.org/10.1007/s10853-020-05326-7

 

 Good luck

Author Response

We gratefully thank the editor and all reviewers for their time spend making their constructive remarks and useful suggestions, which has significantly raised the quality of the manuscript and has enable me to improve the manuscript. Each suggested revision and comment, brought forward by the reviewers was accurately incorporated and considered. Below the comments of the reviewers are response point by point and the revisions are indicated.

Author Response File: Author Response.pdf

Reviewer 2 Report

The authors have laser-cladded 316L stainless steel/TiC composite coating on a Q355B steel substrate with different Y₂O₃ addition amounts in this work. They studied the effect of Y₂O₃ addition on microhardness, wear resistance, and corrosion resistance of the coating. The manuscript is nicely written; however, it needs to address a few additional comments from the reviewer before publication. The reviewer has the following comments.

1.       The abstract is currently very long. It should be shortened.

2.       The authors should add the friction/wear/corrosion properties of Q355B steel substrate (without any cladding) in each of Figures 6-10 so that the readers can see the benefits of cladding as well as the addition of Y₂O_3.

3.       How many samples were tested for friction coefficient and wear testing? Figure 7 should have an error bar for each condition considering more than 1 sample.

4.       Similarly, how many samples were tested for corrosion resistance for each condition? What is the variation of E_corr and I_corr for each condition? Table 5 should reflect the variation of E_corr and I_corr for each condition.

5.       Figure 3c shows some pores on the clad layer. What is the % of porosity on clad layers in each condition?

 

6.       Figure 3 should use the same magnification of SEM images for different positions of the clad layers.

Author Response

We gratefully thank the editor and all reviewers for their time spend making their constructive remarks and useful suggestions,which has significantly raised the quality of the manuscript and has enable us to improve the manuscript.Each suggested revision and comment,brought forward by the reviewers was accurately incorporated and considered. Below the comments of the reviewers are response point by point and the revisions are indicated.

Author Response File: Author Response.pdf

Reviewer 3 Report

The manuscript "Effects of Y2O3 content on wear resistance and corrosion resistance of  316L/TiC coating fabricated by laser cladding" contains valuable results about increasing the applicability of a coated steel surface used in a high-importance industrial sector. 

The role o Y2O3 in increasing the steel properties is known, however, using it in a stainless steel/tiC composite coating is a novel application area. The applied investigation methods and evaluation of the results given were adequate. The result is well documented, and adding 2 % Y2O3 can improve the properties of the coating to a high extent. Thus, I can suggest accepting it for publication.

Some minor remarks.

Line 125, instead of “was ground” should not be used  “ was rubbed” ?

Line 296. The amount of Y2O3 is low enough (1-3%), and the sensitivity of XRD in this range is not too good, especially, if well-detectable metals which give sharp and intense diffractions are present. The relative intensities due to the low amount may be too low to detect.

Line 365, instead of “chlorine” ions, chloride should be written. 

Author Response

Thank you for taking time out of your busy schedule to review my manuscript and for your kind comments. The attached pdf is my response to your comments. I wish you good work and happy life.

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

Accepted

Reviewer 2 Report

The manuscript is revised satisfactorily; hence it can be accepted.