Mechanical Properties of Complex Concentrated Alloys: Implications for Structural Integrity

Klenam, Desmond; Rahbar, Nima; Soboyejo, W. O.

doi:10.1016/b978-0-12-822944-6.00047-5

Cited by 4 publications

(6 citation statements)

References 244 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These alloys extend the frontiers for alloy design beyond the conventional dilute alloying concentrations with potentially different properties for structural and functional applications [1][2][3]20,185]. The excellent structural and functional properties are attributed to four core effects.…”

Section: Complex Concentrated Alloys-brief Overviewmentioning

confidence: 97%

“…The core effects and the relationship between the science and the physical metallurgy of CCAs are schematically shown in Figure 10. The entropy effect focuses on the thermodynamics; sluggish diffusion drives the kinetic phenomenon; severe lattice distor- These alloys extend the frontiers for alloy design beyond the conventional dilute alloying concentrations with potentially different properties for structural and functional applications [1][2][3]20,185]. The excellent structural and functional properties are attributed to four core effects.…”

Section: Core Effects Of Complex Concentrated Alloysmentioning

confidence: 99%

“…Complex concentrated alloys (CCAs) are the new frontier for the design of bulk materials and coatings for structural and functional applications [1][2][3][4][5]. This approach by design has disrupted ~5000 years of conventional and serendipitous material discovery processes.…”

Section: Introductionmentioning

confidence: 99%

“…The approach deviates from exploring compositions at the corners of typical ternary and higher order phase diagrams. This new approach shows promise and is being touted as the future of materials, providing superior structural and functional properties to most conventional alloys [1].…”

Section: Introductionmentioning

confidence: 99%

“…The inherent design principles of bulk materials from CCAs make them expensive compared to most conventional structural and functional alloys [1,2,20]. This hinders scalability and stiff competition from commercially available conventional alloys is inevitable [2,20].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Cold Spray Coatings of Complex Concentrated Alloys: Critical Assessment of Milestones, Challenges, and Opportunities

et al. 2023

View full text Add to dashboard Cite

Complex concentrated alloys (CCAs) are structural and functional materials of the future with excellent mechanical, physical, and chemical properties. Due to the equiatomic compositions of these alloys, cost can hinder scalability. Thus, the development of CCA-based coatings is critical for low-cost applications. The application of cold spray technology to CCAs is in its infancy with emphasis on transition elements of the periodic table. Current CCA-based cold spray coating systems showed better adhesion, cohesion, and mechanical properties than conventional one-principal element-based alloys. Comprehensive mechanical behavior, microstructural evolution, deformation, and cracking of cold spray CC-based coatings on the same and different substrates are reviewed. Techniques such as analytical models, finite element analysis, and molecular dynamic simulations are reviewed. The implications of the core effects (high configurational entropy and enthalpy of mixing, sluggish diffusion, severe lattice distortion, and cocktail behavior) and interfacial nanoscale oxides on the structural integrity of cold spray CCA-based coatings are discussed. The mechanisms of adiabatic heating, jetting, and mechanical interlocking, characteristics of cold spray, and areas for future research are highlighted.

show abstract