Author(s)

Xiao Yuan ¹

Affiliation(s)

¹ National Academy of Excellent Engineers, University of Science and Technology Beijing, Beijing, China

Corresponding Author

Xiao Yuan

ABSTRACT

Titanium alloys boast low density, high specific strength, excellent corrosion resistance and favorable biocompatibility, occupying a strategic position in aerospace, deep-sea equipment, biomedical engineering and new energy sectors, and thus are highly favored by designers and researchers worldwide. Nevertheless, three long-standing bottlenecks have restricted the advancement of titanium alloys for decades: the trade-off between strength and ductility, poor machinability, and susceptibility to extreme service environments. Over the past five years, researchers have made breakthroughs addressing these challenges via metastable microstructure engineering, additive manufacturing, microtexture orientation modulation, intelligent heat treatment and other technical approaches. From the two core perspectives of microstructure regulation and strengthening-toughening mechanisms, this paper elaborates on key scientific issues including heterogeneous laminated structure design, interstitial solid-solution strengthening, phase transformation and nanocrystallization under dynamic loading, as well as room-temperature impact toughness control. Combined with experimental data from published literatures, it further clarifies the physical essence of the microstructure-property relationship. Finally, this work prospects future development opportunities and research directions for titanium alloys, offering references for follow-up research in this field.

KEYWORDS

Titanium alloy; Microstructure regulation; Strengthening and toughening mechanism; Additive manufacturing; Metastable engineering; Microtexture

CITE THIS PAPER

Xiao Yuan. Microstructural Strengthening-Toughening Mechanisms and Multi-application Development of Modern Titanium Alloys. Journal of Materials, Processing and Design (2026). Vol. 10, No. 1, 100-109. DOI: http://dx.doi.org/10.23977/jmpd.2026.100113.

REFERENCES

[1] Marin E, Lanzutti A. Biomedical Applications of Titanium Alloys: A Comprehensive Review[J/OL]. Materials, 2024, 17(1). DOI: 10.3390/ma17010114.
[2] Yang F L, Liu K, Yang H F, et al. Research progress on the effect of heat treatment on microstructure and mechanical behavior of Ti-6Al-4V titanium alloy[J]. Materials Reports, 2026.
[3] Hu K L, Tan C S, Huang C W. Progress on microstructure regulation and mechanical property optimization of high-strength and tough titanium alloys[J]. Journal of Materials Engineering, 2026.
[4] Wang Q P, Chen T T, Hu S Q, et al. Research progress on microstructure and properties of additively manufactured titanium alloys[J]. The Chinese Journal of Nonferrous Metals, 2026, 36(4): 1319-1348.
[5] Guan X R, Chen Q, Qu S J, et al. High-strain-rate deformation: Stress-induced phase transformation and nanostructures in a titanium alloy[J/OL]. International Journal of Plasticity, 2023, 169. DOI: 10.1016/j.ijplas.2023.103707.
[6] Song T, Chen Z, Cui X, et al. Strong and ductile titanium-oxygen-iron alloys by additive manufacturing[J/OL]. Nature, 2023, 618(7963). DOI: 10.1038/s41586-023-05952-6.
[7] Zhang C, Liu S, Zhang J, et al. Trifunctional nanoprecipitates ductilize and toughen a strong laminated metastable titanium alloy[J/OL]. Nature Communications, 2023, 14(1). DOI: 10.1038/s41467-023-37155-y.
[8] Zhang H R, Niu H Z, Zhang D L, et al. Microtexture formation mechanism and mechanical behavior of composite lamellar microstructure in oxygen-enriched near-α titanium alloy[J]. Journal of Materials Engineering, 2026.
[9] Dong Y H, Guo W, Qu G D, et al. Annealing-induced microstructure evolution and residual stress of WAAM TC17 alloy[J]. Transactions of Nonferrous Metals Society of China, 2026. 
[10] Yang N, Shan M, Shi G, et al. Physicochemical State Classification of Heat-treated TC4   Samples Based on Laser-induced Breakdown Spectroscopy (LIBS)[J/OL]. Atomic Spectroscopy, 2024, 45(4): 324-335. DOI: 10.46770/AS.2024.158.
[11] Zhao R Z, Fan J K, Zhang W Y, et al. Research progress on room-temperature impact toughness and microscopic failure mechanism of titanium alloys[J]. Materials China, 2026, 45(5): 380-396.
[12] Nguyen H D, Pramanik A, Basak A K, et al. A critical review on additive manufacturing of Ti-6Al-4V alloy: microstructure and mechanical[J/OL]. Journal of Materials Research and Technology-Jmr&t, 2022, 18: 4641-4661. DOI: 10.1016/j.jmrt.2022.04.055.
[13] Zhang F Y, Su W, Zhao K X, et al. Heat treatment of laser additively manufactured titanium alloys: Microstructure-property regulation mechanism and process design strategy[J/OL]. Aeronautical Manufacturing Technology, 2026.
[14] Zhang K, Zheng J H, Hopper C, et al. Enhanced plasticity at cryogenic temperature in a magnesium alloy[J/OL]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, 2021, 811. DOI: 10.1016/j.msea.2021.141001.

Sponsors, Associates, and Links

---

• Forging and Forming
  
  
• Composites and Nano Engineering
  
  
• Metallic foams
  
  
• Smart Structures, Materials and Systems
  
  
• Chemistry and Physics of Polymers
  
  
• Analytical Chemistry: A Journal
  
  
• Modern Physical Chemistry Research
  
  
• Inorganic Chemistry: A Journal
  
  
• Organic Chemistry: A Journal
  
  
• Progress in Materials Chemistry and Physics
  
  
• Transactions on Industrial Catalysis
  
  
• Fuels and Combustion
  
  
• Casting, Welding and Solidification
  
  
• Journal of Membrane Technology
  
  
• Journal of Heat Treatment and Surface Engineering
  
  
• Trends in Biochemical Engineering
  
  
• Ceramic and Glass Technology
  
  
• Transactions on Metals and Alloys
  
  
• High Performance Structures and Materials
  
  
• Rheology Letters
  
  
• Plasticity Frontiers
  
  
• Corrosion and Wear of Materials
  
  
• Fluids, Heat and Mass Transfer
  
  
• International Journal of Geochemistry
  
  
• Diamond and Carbon Materials
  
  
• Advances in Magnetism and Magnetic Materials
  
  
• Advances in Fuel Cell
  
  
• Journal of Biomaterials and Biomechanics