1 results listed
Material scientists have developed a variety of
synthesizing approaches and methods for synthesizing new
families of materials called advanced or “high-tech” materials
that exhibit exceptional and superior chemical, physical and
mechanical properties. Metal matrix composites reinforced with
nano particles are very promising materials, suitable for a wide
range of applications. In this study, nano Al2O3 was reinforced in
micro sized iron powders. Al2O3 nano powder was added to iron
powder at rates of 1, 2, 3, 4 and 5 wt%. The samples were
prepared by mechanical alloying, pellet pressing and sintering
processes. Grinding and polishing processes were applied on the
sample surfaces at various levels for metallographic investigations.
The densities of the samples decreased with increasing in additives
amount, but it was an important result of reaching 77% ratio of
the theoretical density of the measured density in dry pressing.
The hardness values increased linear with the increase in the
amount of additives. The highest hardness value of 121,33 HV1
was reached with at the rate of 5 wt%.
International Iron & Steel Symposium
UDCS
Açıkgöz A
Aktaş B
Demircan G
Amasyalı F
Akdemir F