عنوان المقالة:تاثير المعاملة الحرارية على سلوك التاكل للفولاذ المقاوم للصدا المزدوج في تطبيقات تقويم الاسنان Effect of heat treatment on corrosion behavior of duplex stainless steel in orthodontic applications
د.علي سبع حمود, الماستر احمد فرج نور ,د.محمد طالب الخفاجي
English Authors
Ali Sabea Hammood , Ahmed Faraj Noor and Mohammed Talib Alkhafagy
Abstract
تاثير المعاملة الحرارية على سلوك التاكل للفولاذ المقاوم للصدا المزدوج في تطبيقات تقويم الاسنان
Abstract
Abstract
Heat treatment is necessary for duplex stainless steel (DSS) to remove or dissolve intermetallic
phases, to remove segregation and to relieve any residual thermal stress in DSS, which may be formed
during production processes. In the present study, the corrosion resistance of a DSS in artificial saliva
was studied by potentiodynamic measurements. The microstructure was investigated by scanning
electron microscopy (SEM) ,x-ray diffraction (XRD) and Vickers hardness (HV). The properties
were tested in as–received and in thermally treated conditions (800–900 °C, 2–8 min). The research
aims to evaluate the capability of DSS for orthodontic applications, in order to substitute the
austenitic grades. The results indicate that the corrosion resistance is mainly affected by the ferrite/
austenite ratio. The best result was obtained with a treatment at 900 °C for 2 min.
Publication Date
11/28/2017
Publisher
Materials Research Express- IOP PUBLISHING-Clarivate Analytics
أ.د. علي سبع حمود | Professor Dr. Eng. Ali Sabea Hammood | 9495