Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Cu alloys


Effect of Silicon cavbide addition on properties of compacted Ni- caproduced by powder technology

Engineering and Technology Journal, 2011, Volume 29, Issue 11, Pages 497-507

This research aimed to product Cu-Al alloys by powder metallurgy method
because of it is commercial and technological important. Copper and aluminum powders were tacking then there powders mixed and blended together and classified to four parts, Silicon carbide powder added to three parts and the last remain as its then these powders mixed and then compacted in isostatic cold pressure at 7ton, then
this compact samples were sintered in furnace under argon gas at 830°C for one hour, latest these samples grinded and polished to microstructure, density, porosity, microhardness and X-ray diffraction tests.

Increased Porosity and Their Effect on The Density and Hardness Value of (Ni—Cu) Alloy

Engineering and Technology Journal, 2011, Volume 29, Issue 1, Pages 66-74

This research is aimed to produce Ni-Cu alloys by powder metallurgy method
because its commercial and technological importance. Nickel and Copper powders
were tacked then their powders mixed and blended together and classified to four
parts, Sodium Chloride powder added (as a space holder) to three parts and the
last remain as it is then these powders mixed and then compacted in hydrostatic
pressure at 7ton, then this compact samples were sintered in furnace under argon
gas at 950°C for one hour, latest these samples are grinded and polished to
examine the microstructure, density, porosity, microhardness, X-ray diffraction
and corrosion resistance.

Effect of Addition Of Copper and Copper –Nickel Elements on Structure and Properties of Low Carbon Steels

Munthir Mohammed Radhy

Engineering and Technology Journal, 2010, Volume 28, Issue 23, Pages 6688-6702

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 €.