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STUDY THE EFFECT OF SILICON ADDITION ON THE CORROSION BEHAVIOR AND DRY SLIDING WEAR OF CU AL NI SHAPE MEMORY ALLOY
دراسة تأثير اضافة السليكون في السلوك التآكلي والبلي الانزلاقي الجاف لسبيكة ( نحاس - المنيوم - نيكل ) التي تتذكر شكلها

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Abstract

In this search the effect of silicon additions on the corrosion and dry sliding wear behavior of (Cu+13wt%Al+3.8wt%Ni) shape memory alloy have been studies, alloys prepared by powder metallurgy in two case based alloy after sintering treatment at temperature 850 for 6hr and alloys after addition silicon as (0.4 , 0.8 wt%Si).Corrosion test based up electrochemical by drawing the polarization curves method (Tafel) in salt solution (3.5wt%NaCl).A Dry sliding wearhas been studies based on pin on disk at a constant load, constant velocity and constant distance of sliding with various sliding time. The result shows when the silicon content increase the corrosionresistance of alloy increases also the dry sliding wear resistance of an alloy increases .

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