INVESTIGADORES
SCHVEZOV Carlos Enrique
congresos y reuniones científicas
Título:
CASTING SIMULATION PROCESS OF AN AUSTENITIC STAINLESS STEEL USED FOR ORTHOPAEDIC PROSTHESIS
Autor/es:
ALICIA E. ARES,; S.F. GUEIJMAN; RUBENS CARAM; CARLOS SCHVEZOV.
Lugar:
Maastricht, The Netherlands.
Reunión:
Congreso; STAINLESS STEEL WORLD 2005 CONFERENCE & EXPO; 2005
Institución organizadora:
Stainless Steel World Organization.
Resumen:
IInvestment casting process is considered one of the oldest techniques of metals
fabrication; join to metals and its alloys conformation. Even though this technique
have been utilized for up to 4000 years, this process is extensively used to
produce plenty of engineering products until today, including aircrafts parts on
aeronautic industry and prosthesis implant parts made of stainless steel. This
work has the principal aim of evaluate liquid/solid transformation step on an
austenitic stainless steel AISI 316L type trough investigation of solidification
mode using techniques of directional solidification at low growth rates. It was
corroborated that AISI 316L type stainless steel exhibit A (austenitic) mode of
solidification. It was observed that most of the steel alloy elements have distribution
coefficient less than unity. Experiments of directional solidification added
knowledge to the previous study and permitted to correlate secondary dendrite
arm spacing (SDAS) with high growth rates of phase transformation parameters.
Afterward, casting of a metallic artificial stem hip re-built was made experimentally
and also virtually by simulating heat transfer process using AFS Solidification
System software. By comparing both theoretic an experimental results, it is
showed satisfactory assessment. Having both simulation process, solidification
mode and solidified dendritic microstructure trough the whole prosthesis parts,
it is possible to establish that, aided by microestructural evolution studies, casting
simulation process can help casting processes to improve final product costs
and quality.nt casting process is considered one of the oldest techniques