Yes it does, since the grain boundaries will be changed with the change of the shape of the grains. Moreover, the flow stress among the grains will be differ is the grain shape is changed. In general, grain size is important just as the shape of it.

you can check these following papers, they may help you:

www.diva-portal.org/smash/get/diva2:1604000/FULLTEXT01.pdf

www.e3s-conferences.org/articles/e3sconf/pdf/2019/56/e3sconf_ic-amme2018_01023.pdf

Thank you

Grain's morphology does affect the mechanical properties. for instance, deformation mechanisms as a results of grain boundaries sliding are controlled by some factors such as the shape of the grains. or, the shape of grains has a direct effect of the density of a material as well. An increase in density values would improve the mechanical properties like hardness, elastic modulus, etc.

What does it mean by gain size constant and change in the grain shape?

Do you mean the surface area? or the weight ?

Please clear the question for me

Changing the grain geometry by keeping the grain volume constant affects the mechanical properties. Particularly the effect of grain surface contact area should be taken into account. On the other hand, if there is an interfacial adhesion associated with the grain surface, it would be good to examine the effect in this area as well.

Dear researcher;

Actually, the grain size and shape could affect on mechanical properties of the material. As an example, the grain size decrement could cause a ductility reduction of materials. As another example, the size of Si particles in aluminum alloy has a direct link with the fatigue lifetime and mechanical properties of such alloy. For more information, read the following article:

Article Evaluation of tensile and low-cycle fatigue properties at el...

Dear Juan,

Definitely, it will affect the mechanical behaviour.

Please follow this article for more information,

https://www.sciencedirect.com/science/article/abs/pii/S0020768399003303

Best wishes.

Yes, since the crystallographic characteristics are responsible for the mechanical properties, it can be expected that the characteristics of the columnar and spherical structure have an influence on the mechanical properties of the material.

best kinds

Yes, the shape and size of grains has strong effect on mechanical properties of metals and alloys.

Dear Cassinerio,

Yes as per published work grain's morphology does affect the mechanical properties because the grain boundaries will be changed with the change of the shape of the grains.

Yes its does affect mechanical properties more importantly the hot ductility.