Author
Abstract
The purpose of this study is to investigate the effect of adding different amounts
(2, 4, 6% of Cu) on properties and microstructure of low carbon steel .Also study
the effect of the same amounts of Cu with half amount of Ni(1,2,3%Ni) are added
on properties of low carbon steels. All these alloys(Fe-Cu,Fe-Cu-Ni) appear an
increase of hardness and strength with increase of the amount of Cu or Cu-Ni. The
microstructure obtained after heat treated(quenched and aging) of Fe-Cu and Fe-
Cu-Ni alloys has been studied by optical microscopy, investigated by X-ray
diffraction and hardness measurement. The microstructures obtained after
quenching depending on composition and cooling rate, the massive ferrite and
massive martensite appears on most of structures in above alloys. The
microstructure after aging of above alloys shown some of precipitates appear as
dash plates, rod and spheres in ferrite or martensite structure and this precipitates
appear as X-ray diffraction were identified the copper rich phase €.
Keywords
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