The present Special Issue titled “Mechanical Performance and Microstructural Characterization of Light Alloys” aims to report the close relation between mechanical performance and microstructure in light alloys, such as Al, Mg, Ti, and their alloys. Moreover, it concerns any improvement in mechanical properties or any optimization in microstructural characterization.
Strong interactions between precipitates and dislocations are the common strengthening route for Al alloys. However, the local stress concentration will be induced along with the strengthening [1,2,3]. Under this context, one confused question has come out: what is the balance between continuous strengthening and accumulated damage? This requires a comprehensive study on microstructural development, damage analysis, and combinations with calculations. Similar difficulties are also found in Mg alloys, which is the lightest structural material. Classical experience that discontinuous precipitation would deteriorate the mechanical performance may break down under certain service environments [4]. Detailed reasons are still being researched for and characterized. More recently, additive manufacturing and dissimilar metal welding have attracted much attention for its various advantages, such as high efficiency and easy repeatability. Nonetheless, due to the manufacturing characteristics [5,6,7], mechanical anisotropy and performance distribution may become inhomogeneous and further deep microstructural characterizations should be performed.
To further trigger the development of light alloys, the present Special Issue has not only collected excellent studies on their mechanical performance and microstructural characterization but has also welcomed studies on any optimized processing methods, advanced characterization techniques, and novel prospects on manufacturing for light alloys.
Funding
The authors gratefully acknowledge the financial supports received from the National Natural Science Foundation of China (Grant No. 51974376), and the Natural Science Foundation of Hunan Province (Grant No. 2021JJ20063).
Data Availability Statement
Not applicable.
Conflicts of Interest
The author declares no conflict of interest.
References
- Zheng, Y.; Guo, N.; Tang, B.; Su, B.; Zhou, Q. Uncovering Dislocation- and Precipitate-Induced Viscoplastic Damage in Al-Zn-Mg Alloy. Materials 2023, 16, 3769. [Google Scholar] [CrossRef] [PubMed]
- Mochugovskiy, A.G.; Mosleh, A.O.; Kotov, A.D.; Khokhlov, A.V.; Kaplanskaya, L.Y.; Mikhaylovskaya, A.V. Microstructure Evolution, Constitutive Modelling, and Superplastic Forming of Experimental 6XXX-Type Alloys Processed with Different Thermomechanical Treatments. Materials 2023, 16, 445. [Google Scholar] [CrossRef] [PubMed]
- Kalinenko, A.; Dolzhenko, P.; Borisova, Y.; Malopheyev, S.; Mironov, S.; Kaibyshev, R. Tailoring of Dissimilar Friction Stir Lap Welding of Aluminum and Titanium. Materials 2022, 15, 8418. [Google Scholar] [CrossRef] [PubMed]
- Zhang, K.; Li, H.; Liang, X.; Chen, Z.; Tao, H.; Che, Y.; Li, L.; Luo, Z.; Huo, Q. Dependence of Tensile Properties and Fracture Behaviors on the Fractions of Continuous and Discontinuous Precipitates in Peak-Aged AZ80A Magnesium Alloy. Materials 2023, 16, 4546. [Google Scholar] [CrossRef] [PubMed]
- Son, Y.G.; Park, Y.H. Synthesis and Characterization of Al Chip-Based Syntactic Foam Containing Glass Hollow Spheres Fabricated by a Semi-Solid Process. Materials 2023, 16, 2304. [Google Scholar] [CrossRef] [PubMed]
- Majchrowicz, K.; Sotniczuk, A.; Malicka, J.; Choińska, E.; Garbacz, H. Thermal Stability and Mechanical Behavior of Ultrafine-Grained Titanium with Different Impurity Content. Materials 2023, 16, 1339. [Google Scholar] [CrossRef] [PubMed]
- Ghadimi, H.; Ding, H.; Emanet, S.; Talachian, M.; Cox, C.; Eller, M.; Guo, S. Hardness Distribution of Al2050 Parts Fabricated Using Additive Friction Stir Deposition. Materials 2023, 16, 1278. [Google Scholar] [CrossRef] [PubMed]
Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content. |
© 2023 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).