تأثير التقسية بالتيارات التحريضية عالية التردد على مقاومة الفولاذ الكربوني للتآكل الكيميائي والاهتراء بالاحتكاك
Abstract
تمت مناقشة تأثير التقسية بالتيارات التحريضية عالية التردد على مقاومة التآكل والاهتراء لنوعي الفولاذ الكربوني (0.59%C , 0.35%C) الأكثر استخداماً في تصنيع قطع التبديل في السوق المحلية, حيث تمت تقسية عينات من نوعي الفولاذ بالتيارات عالية التردد، ومن ثم تم تعريضها لوسط تآكل متمثل بماء البحر, ولظروف اهتراء ناتجة عن الاحتكاك بورق صنفرة ذي درجة نعومة (80) تحت تأثير وزن ثابت (1 kgf) , حيث اعتمد مبدأ الفقد الوزني لتحديد معدلات التآكل والاهتراء للعينات, كما تمت مراقبة درجات حرارة العينات خلال اختبار الاهتراء, وبعد إجراء التجارب والاختبارات أظهرت النتائج ازدياد مقاومة التآكل الكيميائي والاهتراء بالاحتكاك لكل من نوعي الفولاذ بعد المعالجة بالمقارنة مع الفولاذ قبل المعالجة .
The effects of induction hardening on corrosion and wear 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 to corrosion test by quenching it in sea water, and evaluating wear behavior of induction hardened specimens by exposing it to dry sliding under sandpaper of (80) smoothness degree with constant applied load of
(1 kgf). The corrosion and wear volume was evaluated by determining the loss in specimens weight before and after treatment , and by determining specimens temperature during wear test .
The results of tests showed that the wear and corrosion resistance of carbon steel becomes greater when induction hardening is used.
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