3 results listed
In this study, a mixture of unalloyed steel material in
the desired composition via powder metallurgy method is
obtained by adding 0.5% by weight of graphite element in Fe
matrix. The powders obtained were mixed by using a 4, 5 and 6
mm ball in the mechanical mixing device and the mixture was
mixed with powder and ball ratio 1/10 for 1 hour. Powders
obtained after mixing were squeezed at pressures of 700 MPa at
1350⁰C sintering temperature in 1 hour in the molds designed as
tensile specimens. The particle size of the produced steels and the
distribution of the phases were determined by optical
microscope. After microstructure analysis, tensile test was
applied to steel samples prepared in tensile specimen dimensions.
The elongation, yield-tensile strength of the samples are
explained depending on the ball diameter. As a result, steel
samples with a ball diameter of 5 mm exhibited the highest yield
and tensile strength.
International Iron & Steel Symposium
UDCS
Mehmet Akif Erden
Selim Erman
Harun ÇUĞ
In this study, a mixture of unalloyed steel material in
the desired composition via powder metallurgy method is
obtained by adding 0.5% by weight of graphite element in Fe
matrix. The powders obtained were mixed by using a 5 mm ball
in the mechanical mixing device and the mixture was mixed with
powder and ball ratio of 1/10 for 1-2 and 3 hours. Powders
obtained after mixing were squeezed at pressures of 700 MPa at
1350⁰C sintering temperature in 1 hour in the molds designed as
tensile specimens. The particle size of the produced steels and the
distribution of the phases were determined by optical
microscope. After microstructure analysis, tensile test was
applied to steel samples prepared in tensile specimen dimensions.
The elongation, yield-tensile strength of the samples are
explained depending on the mechanical alloying time. As a result,
steel samples for 1 hour exhibited the highest yield and tensile
strength.
International Iron & Steel Symposium
UDCS
Mehmet Akif Erden
Selim Erman
Harun ÇUĞ
In this study, a mixture of unalloyed steel material in
the desired composition via powder metallurgy method is
obtained by adding 0.5% by weight of graphite element in Fe
matrix. The powders obtained were mixed by using a 5 mm ball
in the mechanical mixing device and the mixture was mixed with
powder and ball ratio of 1/5, 1/7 and 1/10 for 1 hour. Powders
obtained after mixing were squeezed at pressures of 700 MPa at
1350⁰C sintering temperature in 1 hour in the molds designed as
tensile specimens. Tensile test was applied to steel samples
prepared in tensile specimen dimensions. The elongation, yieldtensile strength of the samples are explained depending on the
powder and ball ratio. As a result, steel samples with powder and
ball ratio 1/10 for 1 hour exhibited the highest yield and tensile
strength.
International Iron & Steel Symposium
UDCS
Mehmet Akif Erden
Selim Erman
Harun ÇUĞ