تعزيز الحماية من التآكل لمعدنين الكربون والفولاذ المقاوم للصدأ باستخدام مثبط (قاعدة شيف) في ماء الملحي
محتوى المقالة الرئيسي
الملخص
قدم هذا البحث حلاً للمشكلة التي تواجه السبائك وهي مشكلة التآكل بتقليل التآكل وتعزيز الحماية باستخدام مثبط (قاعدة شيف). تم تحضير المثبط (قاعدة شيف) عن طريق تفاعل مواد الاولية (4-ثنائي ميثيل أمينوبنزالديهيد و 4-أمينو أنتيبيرين). تم تشخيصه بواسطة تقنية اشعة تحت الحمراء , حيث أثبت طيف الأشعة تحت الحمراء ومن خلال الحزم الواضحة أن قاعدة شيف قد تشكلت بشكل جيد وبنقاوة عالية. تمت دراسة سلوك التآكل للفولاذ الكربوني والفولاذ المقاوم للصدأ في وسط ملحي (ماء بحر صناعي 3.5٪ كلوريد الصوديوم) قبل وبعد استخدام المثبط عند أربع درجات حرارة: 20 ، 30 ، 40 ، و 50 درجة مئوية باستخدام ثلاثة أقطاب المجهاد الساكن. تمت دراسة سلوك التآكل بواسطة استقطاب الكاثود والأنود الذي تم من خلاله فحص جميع معاملات التآكل والتي تشمل: تيار التآكل(1341× 7-10- 5393 × 9-10, جهد التآكل(-1.031 - -0.227 SCE vs mV (, معدلات التاكل ( 0.658-0.007 mm.y-1), نسبة كفاءة التثبيط (92-98%), وطاقة التنشيط (4.709-26.733 كيلو جول/مول). تمت أيضًا دراسة الخصائص الديناميكية الحرارية والحركية لسلوك التآكل لهذين المعدنين قيد الدراسة ، والتي تشمل الانثالبي الحراري (2.153-24.176 كيلو جول/مول, الانتروبي(-197 - -156 كيلو جول/مول), وطاقة جبس الحرة (59.87-74.56 كيلو جول/مول) قبل وبعد اضافة المثبط.
Received 13/09/2022
Revised 14/02/2023
Accepted 16/02/2023
Published 20/06/2023
تفاصيل المقالة
هذا العمل مرخص بموجب Creative Commons Attribution 4.0 International License.
كيفية الاقتباس
المراجع
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