Special Issue "Nanoscale Precipitates and Precipitation-Hardening in Alloys and Steels"
Deadline for manuscript submissions: closed (15 November 2023) | Viewed by 121
Interests: steels; high entropy alloys; mechanical properties; microstructure-property relationships
Advanced structural materials, such as ultra-high strength steels, aluminum alloys, etc., are essential to the modern world. Their continuous innovation is critical in enabling human to move towards a sustainable future. Among the various strengthening mechanisms, nanoscale precipitation strengthening has been proven to be a most effective method to enhance properties. The traditional second-phase particles, in general enhance strength while reduce ductility due to the void formation at the interface between coarse particles and matrix. Nanoscale precipitates can enhance strength without scarifying the ductility and keep a satisfied strength-ductility trade off due to the tiny size, special interphase interface and precipitates characteristics. In some cases, the group precipitation of multiple types of nanoparticles may provide a superior combination of high strength, good ductility, good weldability and relatively low cost.
A better understanding on the formation of nanoscale precipitates, thermal stability and the nature of the interaction between nanoscale precipitates and dislocations is of high academic and industrial interest, since it provides potential freedom for alloy and thermo-mechanical processing design. The challenges arise due to tiny size of precipitates and complex aging response caused by multi components. It is important to determine the chemical composition, crystal structure, and orientation relationship as well as precipitate morphology to understand the precipitation behavior and strengthening mechanisms. As motivated by the unresolved fundamental issues on nanoscale precipitation and promising properties of nanoscale precipitation-strengthened alloys and steels, the Research Topic welcomes articles on, but not limited to, the following list of subjects, calling for either experimental and/or modeling results:
- Alloy design and microstructure control;
- Thermodynamic and kinetic of the formation and evolution of nanoscale precipitates;
- Mechanical properties and microstructure-property relationships;
- Atomistic simulations on nanoscale precipitation;
- Characterization of nanoscale precipitates;
- Processing methods of nanoscale-precipitation strengthened steels or alloys;
- Nanoscale-precipitation strengthening mechanisms;
- Progress in nanoscale precipitation-strengthening: the new development in controlling and characterization technologies for nanoscale precipitates and the development of new nanoscale precipitation strengthened steels and alloys.
Prof. Dr. Zhongwu Zhang
Manuscript Submission Information
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- nanoscale precipitate
- precipitation strengthening
- strengthening mechanisms
- steels and alloys
- mechanical properties