Enhanced Wear Resistance of Iron-Based Alloy Coating Induced by Ultrasonic Impact

Round 1

Reviewer 1 Report

Dear authors,

Congrats for the nice article. I will consider it for publication after you amending some comments. You will see them in the file attached.

Comments for author File: Comments.pdf

Author Response

Please see the attachment

Author Response File: Author Response.pdf

Reviewer 2 Report

The Authors have presented a very interesting manuscript on the improvement of wear resistance of coatings induced by UIT.

The structure of this paper and the quality of figures are very good. The quality of communication is also acceptable.

The manuscript needs minor revision. The comments are itemized below:

1. Introduction: It is suggested to add the latest items in the field of tribology, friction coefficient and wear, especially from MDPI (Coatings, Metals, Materials,...), will increase the recognition and impact of this paper.

2. Table 1. "Tungsten diameter". It seems to me that the Authors mean "Tungsten electrode diameter"?

3. line 78: "A low-carbon steel plate" It is suggested to add a specific grade of the steel or/and chemical composition.

4. The abbreviation "UIT" is defined in lines 57 and 61. One definition is sufficient.

5. Line 126: The Authors defined the abbreviation "FWHM". However, it is not further used. Is this definition of abbreviation necessary?

6. Line 126: "an specific". It seems to me that the Authors mean "a specific"?

7. The equipment used in the text should give information on the model, place of production, and country.

8. line 142. Both type and basic properties of oil used have to be added.

9. line 144. Removing of "our" is suggested.

10. The title of chapter 3.2 is very confused. It is suggested to correct this title to "Mechanical properties of surface layer".

11. line 262: “relation-ship" should be corrected on "relationship".

12. Font style of parameters notation in the text and figures should be unified. For example, H in Figure 4 is italicised, whereas in the text is normal. Check all parameters in the whole manuscript.

13. Formally, the details of wear tests should be specified, i.e. rotational or linear velocity and methods of evaluation both of friction coefficient value and wear amount.

14. Figure 10: In the tribometer test, the real contact area between a pin and a specimen undergoes a continuous change. So, what was the methodof determination of coefficient of friction (COF) and error values? What was the sliding distance in each tribometer test? Is sliding distance different for specific applied load?

15. line 315-316: In fact, H is the hardness of the surface which is subject to wear.

16. List of references: Numbers of volumes and journal names should be italicised.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf