TY - GEN
T1 - Temperature and strain rate dependent mechanical response of METCO 601 aluminium-polyester abradable seal coating
AU - Pellegrino, Antonio
AU - Perez Martin, Maria Jesus
AU - Dragnevski, Kalin
AU - Zumpano, Giuseppe
AU - Petrinic, Nik
PY - 2018/9/7
Y1 - 2018/9/7
N2 - Abradable coatings are utilised as sacrificial materials in low-pressure compressor casings, and in intermediate and high pressure compressors and seals. The adoption of abradable coatings allows for the clearance between compressor blades and casing to be minimised, increasing the overall efficiency of the engine. Quasi-static and dynamic experiments at different temperatures are conducted to characterise the mechanical response of a thermally-sprayed abradable seal coating. The material is composed of an aluminium continuum matrix and fairly well-dispersed polyester particles. Stress versus strain histories are measured in uniaxial tension and compression at strain rates ranging from 10-3 to 102 s-1, via non-standard experimental techniques. The material displays sensitivity to the strain rate and to the imposed temperature. The mechanical behaviour is brittle in tension while it exhibits higher strains to failure in compression. The material is characterised by a pronounced tension/compression asymmetry.
AB - Abradable coatings are utilised as sacrificial materials in low-pressure compressor casings, and in intermediate and high pressure compressors and seals. The adoption of abradable coatings allows for the clearance between compressor blades and casing to be minimised, increasing the overall efficiency of the engine. Quasi-static and dynamic experiments at different temperatures are conducted to characterise the mechanical response of a thermally-sprayed abradable seal coating. The material is composed of an aluminium continuum matrix and fairly well-dispersed polyester particles. Stress versus strain histories are measured in uniaxial tension and compression at strain rates ranging from 10-3 to 102 s-1, via non-standard experimental techniques. The material displays sensitivity to the strain rate and to the imposed temperature. The mechanical behaviour is brittle in tension while it exhibits higher strains to failure in compression. The material is characterised by a pronounced tension/compression asymmetry.
UR - http://www.scopus.com/inward/record.url?scp=85053671451&partnerID=8YFLogxK
U2 - 10.1051/epjconf/201818304012
DO - 10.1051/epjconf/201818304012
M3 - Chapter in a published conference proceeding
AN - SCOPUS:85053671451
SN - 9782759890538
T3 - EPJ Web of Conferences
BT - DYMAT 2018 - 12th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
A2 - Cosculluela, Antonio
A2 - Cadoni, Ezio
A2 - Buzaud, Eric
A2 - Couque, Herve
PB - EDP Sciences
CY - France
T2 - 12th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading, DYMAT 2018
Y2 - 9 September 2018 through 14 September 2018
ER -