Repair Welding of Corroded Soft-Martensitic Duplex Stainless Steel GX4CrNi13-4
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
View: 1,721
This Paper With 6 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ICOGPP01_672
تاریخ نمایه سازی: 22 مرداد 1391
Abstract:
Duplex stainless steels are grades with typically almost equal parts of two phases at room temperature. These two phases could be austenite-ferrite or ferrite-martensite or even austenite-martensite. Some types of these alloys provide good performance characteristics but had limitations in the as welded condition. In this paper, welding parameters with GTAW had been tested for repair welding of a corroded ascast part of ferritic-martensitic stainless steel called soft-martensitic which is suffered from erosion corrosion and pitting corrosion. Results showed that the corrosion resistance and mechanical properties of weld metal and HAZ are significantly much better than the base metal. But increasing the heat input causes to lower ductility and impact energy. It is important to note that this document is a report for repair welding of a very common steel in dams and power plants so the metallographic observation test didn’t performed because the results are coincident on previous studies. In the other word the most important goals of this work are achieving to higher corrosion resistance, higher thickness of weld, lower distortion andbetter mechanical properties
Keywords:
Authors
Mozaffar Mohammadamin
Dept. of Materials Science and Engineering, Sharif University of Technology, P.O.Box ۱۱۳۶۵- ۹۴۶۶
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :