Design, Fabrication and Application of Heterogeneous Metals
A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "D：Materials and Processing".
Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 2126
Special Issue Editors
Interests: steels; fracture mechanics; materials processing and application
Interests: fracture mechanism; heterogeneous metals; functionally graded materials; layered or laminated materials; additive manufacturing; welding; FSW; tension; simulation; machine learning
Special Issue Information
Dear Colleagues,
Significant developments have been achieved in recent years in processing metals with excellent mechanical properties by optimizing various combinations of different materials to achieve the desired mechanical functionalities. Examples include functionally graded materials (FGMs) and materials with periodic microstructures (e.g., multi-layered or laminated materials). These heterogeneous high-performance materials show a common feature in structure: they invariably contain continuous reinforcements, and generally two or more strengthening mechanisms are actively involved during deformation; these can include strain partitioning, strain transformation, interface constraint, additional hardening, back-stress strengthening, etc. Materials with structure or property gradients have been investigated extensively for their excellent mechanical properties, including wear, friction, corrosion resistance, thermal resistance, strength, and ductility. Interestingly, the gradient-structured material usually exhibits much higher strength and ductility than the sum of separate layers, as calculated using the rule of mixture. Sometimes, gradient material even evades the strength–ductility trade-off dilemma in the same homogeneous material. Although these studies have substantially advanced the fundamental science of heterogeneous materials, it remains a challenge to extend these materials and technologies to industrial applications, due to the high cost, difficulties in processing, and low production efficiency.
Dr. Yu Qiu
Prof. Dr. Chen-Wei Shao
Guest Editors
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Keywords
- microstructures
- structural anisotropy
- gradient metals
- mechanical property
- fracture and failure
- fatigue
- additive manufacturing
- cold spray
- damage mechanisms
- high-strength steels
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