Tribological, Corrosion, and Mechanical Properties of Selective Laser Melted Steel

Round 1

Reviewer 1 Report

This paper carried out detailed review about the selective laser melted steel regarding the tribological, corrosion and mechanical properties. This paper summarized many related articles discussing about these properties. The effects of laser energy density, scanning patterns and building direction on these properties were also presented. Overall, this is a clear and well-written manuscript. It presents a clear insight of all the advanced studies about selective laser melted steel. It can provide an effective instruction for scholars who are focusing on this area. This is a solid journal paper. My recommendation is accepted after minor revision.   Please revise the font in Lines 262-272, Lines 317 to 326.

 

Author Response

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Author Response File: Author Response.pdf

Reviewer 2 Report

The manuscript has novelty satisfactorily in the reported work. The mechanical, tribological and corrosion properties in SLM are well studied systematically.

However, reviewer would like to suggest the following points for futher improvement in the quality of the mausript

1. Introduction shall initially give the holistic review of the different additive manufacturing processes. The advantage of the process being one of the Industry 4.0 enablers and potential to turn around manufacturing processes shall be explained. Further the recent trends in making the process shall be addresses.

Authors may discuss the following in the revised version to give holistic view to the reader.

10.1080/2374068X.2021.1970997; https://doi.org/10.1016/B978-0-08-102965-7.00007-2

2. Figure 1 shall depict the controlled environment casing in schematic as it is essential to avoid oxidation and has impact on metallurgical properties of the product being developed.

3. The use of gaseous environment around part developemnt shall be discussed thoroughly.

4. The analysis of structures developed with different scanning directions shall be elaborated more.

5. Improved resolution of Figure 4 is expected in revision

6. How cooling rate governs property of the microstructures shall be discussed more in detail (Metallurgical aspects shall be explored more)

7. What is the first principle used in equations 4 and 5

8. Hardness Vs Laser energy density characteristics do not have any trend, why? Any reason reported in cited literature. Please discuss.

9. Conclusion shall be specific

10. What is the minimum layer thickness of the parts developed through SLM in the presented study?

 

 

Author Response

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Author Response File: Author Response.pdf