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Effect of Equal Channel Angular Pressing (ECAP) on microstructure and properties of Al-FeAlCr intermetallic phase composites
- Source :
- Materials Research, Vol 17, Iss 3, Pp 775-780 (2014), Digital.CSIC. Repositorio Institucional del CSIC, instname, Materials Research, Volume: 17, Issue: 3, Pages: 775-780, Published: 18 MAR 2014, Materials Research v.17 n.3 2014, Materials research (São Carlos. Online), Universidade Federal de São Carlos (UFSCAR), instacron:ABM ABC ABPOL
- Publication Year :
- 2014
- Publisher :
- FapUNIFESP (SciELO), 2014.
-
Abstract
- An aluminium matrix composite was prepared by mixing commercial aluminium powders and 15 vol % of FeAlCr powders and consolidation by hot extrusion. The extruded composite was subjected to severe plastic deformation by equal channel angular pressing (ECAP) at room temperature and at 150°C. The extruded composite presents a uniform distribution of particles although some defects are observed such as residual pores and particle agglomerates. The particle distribution does not show a significant change due to ECAP. The extruded composite exhibits a relatively fine grain size of the order of 1-2 μm that was refined to 550 nm after three ECAP passes at room temperature by route A and to 636 nm after four passes at 150°C by route Bc. The yield stress of the composites was increased by 140 to 180% after ECAP as compared with the extruded condition.
- Subjects :
- Pressing
Materials science
ECAP
intermetallic
aluminium
Mechanical Engineering
Metallurgy
Composite number
Intermetallic
chemistry.chemical_element
Condensed Matter Physics
Microstructure
chemistry
Mechanics of Materials
Aluminium
Agglomerate
TA401-492
General Materials Science
Extrusion
composite
Composite material
Severe plastic deformation
Materials of engineering and construction. Mechanics of materials
Subjects
Details
- ISSN :
- 19805373 and 15161439
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- Materials Research
- Accession number :
- edsair.doi.dedup.....b43fb91c5646a6d9d379d38c0064bef6
- Full Text :
- https://doi.org/10.1590/s1516-14392014005000029