Influence of Mechanical Treatment on Casting Alloys and Components
A special issue of Metals (ISSN 2075-4701).
Deadline for manuscript submissions: closed (30 December 2019) | Viewed by 491
Special Issue Editor
Interests: casting; aluminium; magnesium; heat treatment; mechanical behavior; fatigue; process microstructure performance; additive manufacturing
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Wrought materials have dominated the arena for applications subjected to fatigue and for applications where ductility is a critical feature. New requirements arising from new demands will ask more of components in terms of both design freedom and part performance, particularly improved strength, ductility and fatigue performance combined with significant weight reduction and component function integration, all at a highly competitive price and shorter series.
The only process capable of enough design freedom and cost-effectiveness is casting but its fatigue performance is limited. The combination of hybrid processing including a casting process with subsequent deformation of the part either on the surface alone or a heavier deformation (globally and locally) targeting pore closure and deformation hardening offers an interesting option to improve fatigue performance and strength.
Today, there is a lack of understanding of the workability of cast alloys. Pore closure and its effect on fatigue and ductility will also depend on whether the pores are gas porosity or shrinkage porosity. In order to resolve this, casting process conditions must be linked to workability. It is also necessary to modify the casting alloys to improve workability without compromising the castability.
The current Special Issue targets the relationship between process-microstructure and workability as well as the end result with an understanding of how the material final properties depend on the post-casting deformation process. This includes full forging of castings, local upsetting with cross-section deformation as well as more gentle deformation not resulting in deformation of a cross section. This latter also includes deep tolling and peening processes.
Prof. Dr. Anders Jarfors
Guest Editor
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Keywords
- cast alloys
- deformation
- workability
- pore closure
- surface deformation
- ductility
- fatigue
- alloy development
- alloy modification
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