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Alloys
Volume 2
Issue 2
10.3390/alloys2020006
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Article
Peer-Review Record

Effect of Li Content on the Microstructure and Mechanical Properties of as-Homogenized Mg-Li-Al-Zn-Zr Alloys

Alloys 2023, 2(2), 89-99; https://doi.org/10.3390/alloys2020006
by Yuehua Sun 1,2, Fan Zhang 1, Jian Ren 1,2,* and Guangsheng Song 1,2
Reviewer 1: Anonymous
Reviewer 2:
Olivier Bouaziz
Reviewer 3:
Khaled Ragab
Alloys 2023, 2(2), 89-99; https://doi.org/10.3390/alloys2020006
Submission received: 14 March 2023 / Revised: 12 April 2023 / Accepted: 20 April 2023 / Published: 28 April 2023
(This article belongs to the Topic Microstructure and Properties in Metals and Alloys)

Round 1

Reviewer 1 Report

This paper describes a study of a series of alloys based on the Mg-Li systems with additions of Zn and Al. This class of alloy has been subject to intensive investigation previously due to its ultra-low density and other attractive properties. The present study builds on this work and so is useful to the scientific community, but does not provide significant new insights into the fundamentals of such materials. The paper is generally well written, but there are some minor errors to be corrected:

1. Check English carefully (e.g. "alloys ... were" not "alloys ... was"

2. The description of a particle morphology as "filamentous" is non-standard and not an accurate description of what is seen in the images. These particles seem to be either rod shaped or plates (viewed edge on). The authors should clarify the true morphology (e.g. through tilting in the TEM) and correct throughout

Optional revision - the paper presents only 2 TEM images of one condition in one alloy. It would be of great value to improve the paper by showing example TEM images of particle morphologies in the other alloys.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 2 Report

Results are stimulating. In order to improve the puplication, it is required to plot the stress-strain curves. In addition authors should present the properties divided by the density.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 3 Report

The manuscript can not be accepted in its present form due to the following major points:

1. The main point is not clear concerning the type and application of alloys studied. The new in in this manuscript is missing relating to dozen of articles published in same point. The authors should make their new research point more clear and correlate it with has been published before.

2. The experimental section has to revised carefully. There are missing data that should be mentioned as thermal treatment parameters. More discussion about the objective and vision should be added. The experimental steps should be added in more details. 

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Round 2

Reviewer 3 Report

The authors did most of required revision and modification. The manuscript can be accepted in its present form.

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