عنوان ترجمه فایل فارسی: ارزیابی مقاومت در برابر خوردگی فولاد ضدزنگ دولایه از طریق روش الکتروشیمیایی.
عنوان نسخه انگلیسی: Corrosion resistance of sintered duplex stainless steel evaluated by electrochemical method
مرتبط با رشته های : مکانیک
تعداد صفحات مقاله فارسی: ۱۷ صفحه
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قسمتی از متن انگلیسی:
۱٫ Introduction
Sintered stainless steels are used in many
industrial branches due to their high mechanical properties and good
corrosion resistance. According to profitability, high dimensional
tolerance, shape reproducibility and energy saving the main receiver of
parts produced by powder technology is automotive appliances industries.
The powder metallurgy stainless steels, especially ferritic grades,
have found applications in mounting brackets for the rear view mirrors,
the tone wheels for the antilock brake systems and also in automotive
exhaust applications like exhaust flanges and mounting unit of HEGOS
[1-3]. The automotive market introduces newly designed sintered parts in
large amounts in produced cars. Stainless steel is the preferred
material for powder metal flanges because of its resistance to corrosion
and oxidation. The fact that the powder metal parts can be made in high
material densities for the optimum combination of properties has
encouraged their use at biggest users of powder metal exhaust system
flanges in the world. The usage of automobile parts manufactured by
powder metallurgy in still weak in Europe [4] and Japan (Fig. 1), which
is the reason of advanced researches on the sintered stainless steels
especially easy to manufacture, cost effective and environmental
friendly grades. Duplex stainless steels are the newest in the stainless
steels family. They are characterized by a two-phase microstructure
consisting of approximately equal amounts of ferrite and austenite.
Duplex steels thus combine some of the features of the two major
classes, austenitic and ferritic grades. Sintered duplex stainless steel
seems to be very promising in those appliances what explain performed
research in Europe [5÷۱۲]
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