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Eisengusswerkstoffe
Dokumenten-Nummer: 57842
Tagungsbeitrag
Shimizu, Kazumichi; Naruse, Takeshi; Xinba, Yaer; Teramachi, Hideki; Araya, Shinji; Ishida, Masahide
Publikationssprache: Englisch
High Temperature Erosion Behaviors of High V-Cr-Ni Spheroidal Carbides Cast Iron
Verhalten bei Hochtemperaturerosion von hochlegiertem V-Cr-Ni-Gusseisen mit kugelförmigen Carbiden
High temperature erosion occurs in production of the inorganic fibrous insulator in plant. Austenitic and martensitic
stainless steels are often used for these severe high temperature erosion conditions. The paper presents erosion
properties of some stainless steels, several cast iron and cast steel using a blast type high temperature erosion furnace.
The solid particle erosion behavior at high temperatures (900 deg C) of carbon steel of S50C, carbon tool steel of SK3,
SUS403, SUS630, and High V-Cr-Ni spheroidal carbides cast iron (SCI-VCrNi) are investigated. Alumina balls entrained
in a stream of hot air impact on the target materials at an air velocity of 100 m/s. the impingement angle is 90 deg. The
influence of the test temperature and the material removal are discussed. The high temperature erosion behaviors of
specimens are discussed by the eroded surface morphology and vertical section observation using SEM and optical
microscopy observations.
Muroran Institute of Technology, JP; TERAMACHI, Saijo, JP
Erscheinungsjahr 2010
S. S.255-260
Seiten/Bilder/Tabellen/Quellen: 6S
Eisengusswerkstoffe
Dokumenten-Nummer: 57786
Zeitschriftenaufsatz
Shinde, V. D.; Ravi, B.; Narasimhan, K.
Publikationssprache: Englisch
Solidification behaviour and mechanical properties of ductile iron castings with varying thickness
Erstarrungsverhalten und mechanische Eigenschaften von Gussteilen aus Gusseisen mit Kugelgraphit mit
unterschiedlichen Wandstärken
Achieving the desired mechanical properties in thin wall ductile iron castings poured in industrial production foundries is
a challenge. In this work, the effect of copper addition (up to 0.74%) and melt processing (Ba based stream inoculation)
on the matrix structure, mechanical properties and fracture behaviour of ductile iron castings with varying section
thickness (4-16 mm) were investigated in a regular jobbing foundry. It was possible to obtain 80% pearlitic structure
without carbides in 4 mm sections, giving a tensile strength of 658 MPa with 2.5% ductility and 264 Brinell hardness.
The solidification behaviour represented by the cooling curves helped in checking the effectiveness of the melt
treatment by observing the amount of undercooling. Fractography studies of tensile specimens showed the change in
fracture mechanisms due to increase in copper content on fracture paths. The increased amount of pearlite in the
matrix exhibited brittle fracture with river pattern.
Indian Institute of Technology (IIT) Bombay, Mumbai, IN
International Journal of Cast Metals Research
Erscheinungsjahr 2012
Heftnummer 6
S. S.364-373 (10 Seiten, 10 Bilder, 4 Tabellen, 8 Quellen)
Giesserei Literaturschau