Microstructure, Crystallography, and Mechanical Properties of Metallic Materials

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Crystallography and Applications of Metallic Materials".

Deadline for manuscript submissions: 25 April 2025 | Viewed by 504

Special Issue Editors


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Guest Editor
Department of Advanced Components and Materials Engineering, Sunchon National University, Suncheon 57922, Republic of Korea
Interests: crystallographic texture; grain boundary engineering; electron microscopy; plastic deformation; metals and alloys

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Guest Editor
Oak Ridge National Laboratory, Oak Ridge, TN, USA
Interests: materials engineering; additive manufacturing; deformation; recrystallization; texture

Special Issue Information

Dear Colleagues,

Microstructures are the building blocks used by the metallurgist to understand the behavior of metallic materials through the examination of grain morphology, orientations, dislocations, second phase particles, precipitates/intermetallics, etc. Working with the optical microscope or electron microscope (SEM, EBSD, TEM) has its advantages in terms of its cost effectiveness and level of magnification and resolution. Thermomechanical processing (TMP) of any metals or alloys is one of the necessary preliminary steps before its application. The arrangement of grains changes during the TMP, and hence it also affects the crystallographic texture. Most of the manufacturing processes, such as cold/hot deformation, additive manufacturing, welding/joining, severe plastic deformation, etc., are involved in the fabrication of a component that changes the crystallographic texture of metals and alloys. TMP also has a significant effect on the mechanical properties of the alloys. Mechanical properties such as yield strength, ductility, and micro-hardness are the important design parameters which are used by every metallurgist and mechanical engineer during the manufacturing of an engineering component for structural application. Hence, it is very important to understand the correlation between microstructural and crystallographic texture evolution with the mechanical properties of the materials for any application. 

This topics of Special Issue include, but are not limited to:

  1. Welding behavior of BCC/FCC materials.
  2. Plastic deformation of metals/alloys.
  3. Electron Back-Scattered Diffraction (EBSD) study.
  4. Crystallographic texture (micro- and macro-texture).
  5. Refractory complex concentrated alloys (RCCA).
  6. High-entropy alloys and textures.
  7. Friction stirs processing and mechanical properties.
  8. Phase transformation in stainless steels.
  9. Recrystallization behavior of Beta-Ti alloys.
  10. Cryogenic deformation and EBSD study.
  11. Nucleation and grain growth phenomena in BCC/FCC.
  12. Design of new microstructures in additive manufacturing.

The above-mentioned keywords cover the various aspects of microstructure and crystallographic texture evolution. The publications in this Special Issue will give a thorough understanding of SEM, EBSD, and XRD to the scientific community.  

Dr. Aman Gupta
Dr. Gyan Shankar
Guest Editors

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Keywords

  • microstructure
  • crystallographic texture evolution
  • mechanical properties
  • metallic materials
  • recrystallization behavior
  • texture
  • recrystallization behavior
  • grain growth

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Published Papers (1 paper)

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Research

20 pages, 16570 KiB  
Article
Effect of Al-5Ti-1B-xCe Refiner on Microstructure and Mechanical Properties of Cast Al-5Mg-3Zn-1Cu Alloys
by Shenshen Cui, Qiang Lu, Qudong Wang, Dezhi Li and Chuan Lei
Metals 2025, 15(2), 141; https://doi.org/10.3390/met15020141 - 29 Jan 2025
Viewed by 327
Abstract
The effects of Ce content on the microstructure and phase composition of the Al-5Ti-1B refiner and the refining effect of the Al-5Ti-1B-xCe (x = 0, 1, 5, 10 wt.%) refiner on the grain size, microstructure, and mechanical properties of Al-5Mg-3Zn-1Cu alloys were studied. [...] Read more.
The effects of Ce content on the microstructure and phase composition of the Al-5Ti-1B refiner and the refining effect of the Al-5Ti-1B-xCe (x = 0, 1, 5, 10 wt.%) refiner on the grain size, microstructure, and mechanical properties of Al-5Mg-3Zn-1Cu alloys were studied. The results show that the addition of 1.0 wt.% Ce in the Al-5Ti-1B refiner changes the TiAl3 phase from block to strip, and the massive Ti2Al20Ce phase is formed. When the Ce content of the Al-5Ti-1B refiner increases to 5.0 wt.%, the plate-like TiAl3 phase is surrounded by the Ti2Al20Ce phase, and the reticulate Al4Ce phase is formed. With the Ce content of the Al-5Ti-1B refiner further increasing to 10.0 wt.%, a lot of network distribution Al4Ce phase is formed. The volume of the Mg32(AlCuZn)49 phase of the as-cast Al-5Mg-3Zn-1Cu alloys is reduced after refining with the Al-5Ti-1B-xCe refiner. The Al-5Ti-1B-1Ce refiner has the best refining effect on as-cast Al-5Mg-3Zn-1Cu alloys, and the grain size of as-cast Al-5Mg-3Zn-1Cu alloys refined by the Al-5Ti-1B-1Ce refiner is reduced by 43% compared with as-cast Al-5Mg-3Zn-1Cu alloys refined by the Al-5Ti-1B refiner. Compared to the aged Al-5Mg-3Zn-1Cu alloys refined by the Al-5Ti-1B refiner, the yield strength, ultimate tensile strength, and fracture elongation of aged Al-5Mg-3Zn-1Cu alloys refined by the Al-5Ti-1B-5Ce refiner are improved by 4.0%, 4.6%, and 25.6%, respectively. Therefore, it can be seen that Al-5Ti-1B-1Ce refiner and Al-5Ti-1B-5Ce refiner have broad application prospects. Full article
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