TY - JOUR
T1 - Manufacturing of ultra-fine particle coal fly ash–A380 aluminum matrix composites with improved mechanical properties by improved ring milling and oscillating microgrid mixing
AU - Kaisarlis, Georgios
AU - Vasiliou, Georgios
AU - Spitas, Vasileios
AU - Inglezakis, Vassilis
AU - Itskos, Grigorios
AU - Spitas, Christos
PY - 2019/5/15
Y1 - 2019/5/15
N2 - An experimental study is presented of ultra-fine coal fly ash (CFA) aluminum matrix composites produced by successive high-power ring milling of CFA, oscillating microgrid mixing of the CFA–aluminum melt, gravity casting and rapid cooling. Samples corresponding to different CFA concentrations and particle size distributions (1 μm average, or less) are produced and subjected to microstructural and mechanical characterization, including tensile, compressive, impact, hardness and wear testing. While the usual trade-off between increased strength and hardness and reduced ductility and toughness is observed, the obtained ultra-fine particle composites are confirmed to have overall improved mechanical properties compared to composites with larger size particles previously produced by ball milling.
AB - An experimental study is presented of ultra-fine coal fly ash (CFA) aluminum matrix composites produced by successive high-power ring milling of CFA, oscillating microgrid mixing of the CFA–aluminum melt, gravity casting and rapid cooling. Samples corresponding to different CFA concentrations and particle size distributions (1 μm average, or less) are produced and subjected to microstructural and mechanical characterization, including tensile, compressive, impact, hardness and wear testing. While the usual trade-off between increased strength and hardness and reduced ductility and toughness is observed, the obtained ultra-fine particle composites are confirmed to have overall improved mechanical properties compared to composites with larger size particles previously produced by ball milling.
KW - A380 aluminum alloy
KW - high-energy ring milling
KW - mechanical testing
KW - metal matrix composites
KW - ultra-fine coal fly ash (CFA)
UR - http://www.scopus.com/inward/record.url?scp=85065759040&partnerID=8YFLogxK
U2 - 10.1007/s11665-019-04083-2
DO - 10.1007/s11665-019-04083-2
M3 - Article
AN - SCOPUS:85065759040
VL - 28
SP - 2630
EP - 2640
JO - Journal of Materials Engineering and Performance
JF - Journal of Materials Engineering and Performance
SN - 1059-9495
IS - 5
ER -