Preparation of V–4Cr–4Ti Alloys from Mixed Oxides via Electro-Deoxidation Process in Molten Salt
Round 1
Reviewer 1 Report
Manuscript submitted by Cao present the formation of V-4Cr-4Ti alloy from oxides by reaction in molten salts. The idea has potential, but the authors have failed to convince that the alloy was formed. To be considered for publication the authors should make a comparison of the obtained alloy with the commercial one or to compare their diffraction pattern with a reference of a JCPDF file. Second criticism is the lack of data from sample volume. A section and diffraction inside should be given.
Other remarks are listed below:
Page 2. Line 62: „ scanning electron
62 microscopy (SEM) in combination with energy dispersive X-ray spectroscopy (EDX), respectively.” The commercial names of these equipment should be given
Page 2, line 68: this sentence should be removed
Fig. 2 the elements maps are not very visible in black/white
In table 1, the second digit has no meaning
Page 5, line 119, for what time is the given composition? Please add this information.
Fig. 6. Should be described more logical.
Author Response
Dear professor,
Special thanks to you for your good comments.
Please see the attachment
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Remarks and recommendation:
Rows 45 – 170: Use a space between values and units (1373 K, 100 MPa....)
Figure 1: Too small letters at V2O3 and TiO2.
Figure 2: Number ?? μm is missing . Elemental maps in Figure 2 b ... 2e have not predicative sense.
Figure 3: Too small letters at V, V2O3 ...... Unreadable!
Questions:
How many grams was used as input material and how many gram was produced in the metallic form?
What are the perspectives for production of the V4Cr4Ti alloys in future in industry? Or it is only laboratory research?
Conclusion:
The manuscript is very interesting from the view of new technologies for preparation of special alloys.
Text is intelligible, on the high technical level.
I recommend after low changes and corrections of the text to publication in journal Metals.
Author Response
Dear Professor,
Special thanks to you for your good comments.
Please see the attachment.
Author Response File: Author Response.pdf
Reviewer 3 Report
Manuscript describes formation of V-Ti-Cr alloys from oxides using electrolysis in molten salts. Text is well written and well organised. Topic has some interest for the community. I only have a couple of suggestions to improve current version.
I suggest to give a comparison with other possible synthetic routes in introduction or in discussion.
Lines 68-70 should be deleted.
In Fig 1 and 2, I also suggest to give XRD and SEM before syntherins for comparison
Fig 3 shows also additional diffraction line at 30° 2Theta for 120 min samples. Is it possible to attribute mentioned diffraction line with bcc alloy?
Lines 97 and 106: pure V and Cr were mentioned. I suggest to estimate cell parameters to clarify purity of metallic phases. I expect formation of alloys with shifted cell parameters (how it has been mentioned in line 112) but not pure metals. Estimation of cell parameters will help to give precise composition while for all systems of interest (V-Cr, Ti-Cr, Ti-V) dependence of cell parameters with composition could be found in the literature.
I also suggest to discuss in short paragraph phase diagram characteristic for ternary system as well as diagrams for binaries.
lines 179-184: is it possible to attribute reactions (1)-(6) with processes c1-c5 found in the CV experiment?
Author Response
Dear Professor,
Special thanks to you for your good comments.
Please see the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
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