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Register a new userSurface hardening of 7075 aluminum alloy by electroplating of nickel followed by diffusion treatments
التقسية السطحية لسبيكة الألمنيوم 7075 عن طريق الترسيب الكهربائي للنيكل المتبوع بالمعالجة الحرارية
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محمد يحيى النيفاوي( باحث )
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تم في هذا البحث دراسة عمليات التقسية السطحية لسبيكة الألمنيوم 7075 بالطلاء الكهربائي بالنيكل، و من ثم تم تعريض طبقة الطلاء المتشكلة إلى أنواع مختلفة من المعالجات الحرارية (الانتشار)، و قد حصلنا على طبقات مختلفة السماكة من النيكل.
In This research a surface hardening process by Ni coating and subsequent diffusion heat treatments was studied at Al7075 alloy. Nickel coatings with different thickness were obtained.
References used
TOMIDA,S ,and NAKATA,K 2003-Surf.Coat.Technol.559p
LUGSCHEIDER,E KRÄMER,G BARIMANI,C ,and ZIMMERMANN,H 1995-Surf. Coat. Technol.497p
RIA,K.T GEBAUER,A ,and WÖHLE,J 1996- Surf. Coat. Technol.498p
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In this research we are Studying the improvement of the thermal
conductivity of The 6063 aluminum alloys by Alloy elements
Adding such as (Boron & Titanium) .
In this Study we used (6063) aluminum alloy as a base metal
because it using of the fab
rication of Central Processing Unit(CPU)
heat sinks . First, we brought casting mold. We melted Aluminum
after weighting it ,and we adding Alloy elements (Boron &
Titanium), we selected the temperatures of the furnace at 1000 ℃
,for period 60 minute.
In this research the effect of Nickel addition by various
percentages on the mechanical properties of
Aluminum-Copper alloy was studied. After
adding Nickel the alloys was artificially aged for different
times, and the effect of Nickel on
the re
sponse of alloy to precipitation hardening was studied.
Where the effect of Nickel on the microscope structure was
studied, and on the mechanical properties as hardness, tensile
strength, yield strength and elongation. The results showed that
the increase of Nickel improve this properties, where the highest
values were obtained when the Nickel's percentage was 5% Wt.
In this research, specimens of aluminum alloy 6061 were
received, and chemical composition was investigated. After
that solution heat treatment was applied on it at 530°C, a
section of these specimens was quenched in water and anther
quenched in
oil, and two sections were aged at 160°C for
times (1,3,5 h), and thus obtained six samples differ in
condition of heat treatment in addition to as received
specimen.
Because of large industrial development which the world has seen in
all fields. scientists and researchers aim to produce new materials
that having special engineering properties with low economic cost as
fit multiple industrial application and us
es. So in This present
article We try to prepare composite materials based on aluminum
alloy (6663) and reinforcement it by different particles having size
of micron of Alumina and silicon carbide particles are added in
specific weight parentage by stir casting
technique to obtain Aluminum Which having the improving
mechanical properties
The effects of induction hardening on mechanical properties of two kinds of carbon
steel (0.59%C , 0.35%C) that are widely used in local industry, were discussed by exposed
specimens that were induction hardened with different values of power and i
nductor's
speed to hardness, tensile, and impact tests.
The results of tests showed that the mechanical properties become greater with slight
decrease in impact energy of carbon steel when induction hardening is used, and showed
the possibility to do control on product's properties by make control on treatment
parameters .
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