Effect of Varying Ce Content on the Mechanical Properties and Corrosion Resistance of Low-Elastic-Modulus Mg-Zn-Ce Amorphous Alloys
Round 1
Reviewer 1 Report
Please address all comments in the attached file carefully.
Comments for author File: 
Comments.pdf
Author Response
Dear Reviewer:
Thank you!
- Added the details of the article of doi.org/10.1016/j.pmat sci.2017.04.011 in the reference [17].
- In the 2.3 part, the unit of scanning frequency is MHZ. So the scanning frequency is 100-0.1MHZ.
- In Figure 1（a), the main peaks represent for exothermic crystallization peaks.
Please see the attachment for more details.
Author Response File: Author Response.pdf
Reviewer 2 Report
Magnesium alloys have good biocompatibility. This can be used in medical implants. Therefore, the problem is urgent. In this study, a new type of amorphous magnesium alloy based on MgZnCe was developed. Corresponding mechanical properties and corrosion resistance were studied. It was established that the addition of Ce gives the amorphous alloy good mechanical properties. The possibilities of development and application of this alloy are indicated.
· The work is written clearly and distinctly.
· Graphs and formulas are clear and informative.
· The work can be published in the presented version.
Conclusion:
The work can be published in the presented version.
Author Response
Thank you!
Reviewer 3 Report
1. Abstract: Elastic modulus cannot be 30-58 MPa. Maybe 30-58 GPa? Please check.
2. Introduction, lines 33-34: Authors said that elastic modulus of crystalline magnesium alloys is higher than elastic modulus of human bone. But it is known that its value, 40-50 GPa, is the same as obtained in this work for amorphous magnesium alloys. (Haghshenas, M., 2017. Mechanical characteristics of biodegradable magnesium matrix composites: A review. Journal of Magnesium and Alloys. https://doi.org/10.1016/j.jma.2017.05.001).
3. For what type of biodegradable devices (screws, pins, nails, stents) the amorphous ribbons with 15-20 µm can be used?
4. Figure 1 has a very low quality and is difficult to read. Please improve the figure quality.
5. Page 3, lines 127-128. Please provide the reference that confirms the assumption about influence of deltaTx on glass-forming ability.
6. Figure 2 caption. What does Ce2 means? The other designation of alloys used in the manuscript text.
7. Figure 8: Please change the color of phases names. The red on gray, difficult to read.
Author Response
Dear Reviewer:
Response:
1. I have changed MPa to GPa of Elastic modulus in Abstract part.
2. Elastic modulus of Magnesium alloy is higher than human bone. But the elastic modulus of amorphous magnesium alloy is in the same range.
3. In this paper, we researched the Mg amorphous belt. The Mg amorphous rods can be used to biodegradable pins.
4. I have improved the quality of figure 1.
5. I have added the reference [25] that can confirm the assumption about influence of delta Tx on glass-forming ability.
6. Ce2 means the content of Ce element is 2%.
7. I don’t change the color of phased names. Because the different color of line focuses on the different content of Ce in all paper.
Reviewer 4 Report
-Line 18: “58 GPa” instead of “58 MPa”.
-Lines 155-157: It is not clear because the fracture morphology study focuses mainly on only two of the four alloys considered.
-The size and resolution of Figs. 8(a) and 8(b) should be increased.
Author Response
Dear Reviewer:
- I have changed MPa to GPa in line 18.
- Because Mg68Zn30Ce2 and Mg66Zn30Ce4 sample alloys exhibited good plasticity, the fracture morphology study focused on above two samples.
- The size and resolution of Figure 8(a) and (b) have been increased.
