Effect of the Initial Texture, Recrystallization and Re-Dissolution Process on the Evolution of Texture during Solution Treatment of the 7A65 Hot Rolled Plate
Round 1
Reviewer 1 Report
Page 1 Abstract and introduction
Texture transition is a term used to describe the texture changes that are observed as the SFE of FCC metals changes from high to low values. This work presents results on one single alloy thus the SFE is constant. Please explain.
Different plate thicknesses imply different degrees of deformation during hot rolling. Please modify accordingly. The word "disparate" is used to indicate that something contains or is made up of fundamentally different elements. In this case, it would be better to use the word "different".
Shear stress due to friction during rolling? If so, this would mainly affect the surface microstructure. Please elaborate and explain.
Dynamic recrystallization takes place DURING deformation. It does not occur during a heat treatment!!! Please make the necessary corrections.
References 1 and 2 were published in 2005 and 2006. Therefore, they are not really recent!!!
Page 2 Introduction
Please use the term orientation density rather that density alone!!! The use on the word density alone is misleading.
Page 3 Results
Please explain why the word "tissue" is used here. Would the word "microstructure" be better?
The Al7Cu2Fe particles are indeed precipitated at grain boundaries, as indicated in Figs. 1c and 1d for the 25 and 65 mm plates. Please make the necessary corrections.
What are the initial grain sizes of the various plates investigated? It appears, from the SEM and OIM images in Figs. 1 and 2 that the observed differences in grain morphology are due to different amounts of hot deformation which, in turn, lead to the size and morphology differences observed in the OIM images shown in Fig. 5 for the materials after the solution treatment. Please comment.
Page 4 Results
Please indicate the evidence of dynamic recrystallization in the microstructures of Fig. 2. Al and most of its alloy are high SFE materials, therefore, dynamic recrystallization is difficult. The microstructures shown in Fig. 2 exhibit evidence of cell and subgrain structures caused by hot deformation. Recrystallization in this material may have occurred statically after deformation, as shown by the small grains in Fig. 2b. Please comment and make any necessary correction in the manuscript. Also, since the IPF pole figures correspond to the ND, how the authors concluded that the green grains are oriented with [101] parallel to RD? Please revise the description of the complete paragraph.
Page 5 Results
The Goss orientation disappears!!! It is not observed at all in the 120 mm thick plate. Please make the necessary corrections
Page 7 Figure 5
For ease of comparison, Figs. 5a and 5d should be presented at the same magnification as Figs. 5b, 5c, 5e and 5f.
Page 8 Results
How significant are the differences in orientation densities observed? Why the volume fractions of material with a given orientation were not reported instead? It would have been much easier to follow the descriptions of the texture changes observed as a result of the heat treatment.
Page 19 Conclusions
The use of the term “silk” to refer to a fiber texture is incorrect. Please modify the manuscript.
Dynamic and static recrystallization in Al alloys are two fundamentally different processes. Static recrystallization involves nucleation and growth of new grains from the deformed microstructure during annealing. Continuous dynamic recrystallization typically occurs at very large strains and involves the evolution of high angle boundary structures without nucleation and growth during deformation. How these two inherently different processes may lead to similar texture changes during a solution heat treatment as suggested in the manuscript. Is there any microstructural evidence of the occurrence of continuous dynamic recrystallization in the hot rolled plates?
Comments for author File: 
Comments.pdf
Author Response
Dear reviewer,
Thanks for your careful examinations and kind suggestions. The modified result is shown in the file.
Lina Jia
Author Response File: Author Response.pdf
Reviewer 2 Report
In my opinion, it would be appropriate to characterize the types of textures in more detail and experimental methods.
Author Response
Dear reviewer,
Thanks for your careful examinations and kind suggestions. The modified result is shown in the file.
Lina Jia
Author Response File: 
Author Response.docx
Reviewer 3 Report
Review of the manuscript "Effect of the initial texture, recrystallization and re-dissolution process on the transition of texture during solution treatment of the 7A65 hot rolled plate". It deals with the analysis of transition of texture during solution treatment of 7A65 hot rolled plate.
The manuscript is interesting, almost new, well organized.
However it can be reconsidered after the following major revisions.
English should be improved by english native speaker (overall manuscript).
Due to the high number of acronyms the "nomenclature" box is warmly recommended.
Please make explicit the calculation of the ODF.
Please add experimental details about conductivity measurements.
Fig. 9: Please increase readability.
Pag. 2: [7-13] (7 references) and [14-24] (11 references one shot). Unacceptable. Please split and motivate each of them.
Ref. 36 and 37 are not called in the main text.
Author Response
Dear reviewer,
Thanks for your careful examinations and kind suggestions. The modified result is shown in the file.
Lina Jia
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
Some eddition suggestions for authors:
Line 29: please include the word “average”
Line 48: change: “shear fore” by “deformation”
Line 51: remove “enormously”
Line 61: remove “after being treated with the”
Line 65: change “researches” by “investigations”
Line 146: remove the word “significantly”
Line 195, 293, 341, 415, 469, 473, 481: change the word “transit” to “change”
Line 245: Figure 5 appears twice in the manuscript. Please use the second, it is clearer.
Line 251: change: “distinctly” by “significantly”
Line 254: change: “shear stress” by “deformation process”
Line 383: change “distinctly” by “significantly”
Line 393: change “to the top” by “to a maximum”
Line 416, 427: remove “and” and change “density” by “densities”
Line 463: change “stronger shear forces” by “deformation”
Line 515: remove the sentence: “in the plates with different thicknesses”
Line 515, 518: change “shear force” by “deformation”
Line 535: remove word “immensely”
A final comment.
The strength of solution treated and aged Al-Zn-Mg-Cu alloys is mainly due to precipitation hardening. In fact, from all Al-alloys, these materials exhibit the greatest response to age hardening. The contribution of this strengthening mechanism should be included in the equation in line 543. Why this strengthening mechanism was not taken into account for a solution treated and aged material. Although the analysis presented in the Discussion section of the manuscript is interesting, it really shows the effect of the solution treatments on the anisotropy of the strength and ductility (Fig. 12 of the manuscript) of the material investigated after aging (i.e. assuming that the aging treatment does not cause any further texture changes). This is important since the anisotropy affects the formability, in particular the resistance to thinning during thin sheet forming operations. Since the plates investigated are all rather thick, localized thinning may not be a problem during processing. This subjected was not addressed at all in the manuscript. It deserves some comments from the authors in the light of their interesting results.
Author Response
Dear reviewer,
Thanks for your careful examinations and kindly suggestions.
Author Response File: Author Response.pdf
Reviewer 3 Report
The manuscript has been significatively improved and can be accepted in the present form.
Author Response
Dear reviewer,
Thanks for your careful examinations and kindly suggestions.
Author Response File: Author Response.pdf
Round 3
Reviewer 1 Report
No further comments or questions. Thanks to the authors for their effort.
