Size Effects in Metals and Alloys and Impact on the Miniaturization of Metallic Parts
A special issue of Metals (ISSN 2075-4701).
Deadline for manuscript submissions: closed (20 July 2019) | Viewed by 6785
Special Issue Editor
Interests: plasticity mechanisms; plasticity modelisation; dislocations and twinning; size effects in metals; corrosion; magnetic and electrical properties; spark plasma sintering; additive manufacturing
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
The forming process of thin parts for miniaturized systems, used in engineering, medical or electrical devices, is often a technological challenge due to the influence of free surfaces on the mechanical properties of the material. It is well established that the manufacturing of microformed components is concerned with size effects, proceeding from dimensional or microstructural length scales. The accuracy and reliability of electronic miniaturized parts can be, therefore, strongly affected by these kinds of size effects. The transition from micro-sized samples to nano-sized ones leads to a “smaller is stronger” effect, widely characterized for micropillars and thin films. From macro specimens to microsized specimens, a “smaller is softer” trend, which is less investigated, is generally observed for metallic materials.
Main of published works on size effects deal with their impact on the mechanical properties: work hardening, fracture and damage mechanisms. Others properties of metals, and their evolutions with such size effects, are far less studied. For instance, the impact of miniaturization on magnetomechanical couplings deserves attention because such effects can deeply modify the ferromagnetic properties of thin metallic parts used in magnetic microsensors. Others metal properties are also of deeply impacted by miniaturization: electrical properties, thermal fluctuations, formability, corrosion and degradation, and all coupled phenomenon between two or more properties.
This Special Issue seeks to provide a selection of original research on the current trends in size effects in metallic parts. Submissions dealing with microformability and consequences on structural and functional properties are welcome. As a Guest Editor of this Special Issue, I invite you to submit your work, which will be peer-reviewed, to be accepted for publication in Metals.
Prof. Dr. Eric Hug
Guest Editor
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Keywords
- Size effects
- Miniaturization
- Mechanical behaviour
- Functional properties
- Multiphysical couplings
- Formability
- Sensors
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