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Complex concentrated coatings: Effect of processing route on microstructural and mechanical properties
- Source :
- Materials Letters. 230:100-104
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- We investigated the structure–property correlation for the complex concentrated alloy (CCA) coatings prepared using different precursor powders. Al3CoCrFeNi CCA precursor powders were prepared through mechanical alloying (MA) (ball milling) and direct mixing (DM). CCA coatings were developed using microwave technique through hybrid heating approach. Coatings showed good metallurgical bonding with substrate exhibiting cellular growth structure. Microstructure for both coatings was primarily composed of A2 phase segregated with B2 phase at intercellular region. CCA coatings with different precursors showed insignificant influence on hardness, elastic modulus and cavitation erosion. Nonetheless, coating developed with MA precursor showed slightly lower fracture toughness compared to DM, mainly attributed to inherently higher fraction of intermetallic B2 phase. We showed that direct mixing is an efficient and effective route for developing CCA coatings.
- Subjects :
- 010302 applied physics
Materials science
Mechanical Engineering
Alloy
Intermetallic
02 engineering and technology
engineering.material
021001 nanoscience & nanotechnology
Condensed Matter Physics
Microstructure
01 natural sciences
Fracture toughness
Coating
Mechanics of Materials
Phase (matter)
0103 physical sciences
engineering
General Materials Science
Composite material
0210 nano-technology
Elastic modulus
Ball mill
Subjects
Details
- ISSN :
- 0167577X
- Volume :
- 230
- Database :
- OpenAIRE
- Journal :
- Materials Letters
- Accession number :
- edsair.doi...........69727ccd3cabc6e1c987df8ffc58b167