The Study on Welding Area of the Metal Applying Both Optical and Electron (SEM) Microscopes
الموضوعات :
Seyed Alireza Mousavi Shirazi
1
,
Ali Wail Salman Sangoor
2
1 - دانشگاه آزاد اسلامی واحد تهران جنوب، دانشکده فنی، گروه فیزیک.
2 - دانشگاه آزاد اسلامی واحد تهران جنوب, دانشکده فنی, گروه مهندسی مکانیک- ساخت و تولید (تحصیلات تکمیلی).
الکلمات المفتاحية: Corrosion, Electron Microscope, Metal, Optical Microscope, Welding area.,
ملخص المقالة :
To better study the performance of welding on steel and treating it with an alloy, considering the area of metal welding from the metallurgical point of view and also the analysis of nanostructural characteristics are of great importance. In this research, the samples of stainless steel were taken into consideration by both optical and electron microscopes (SEM) for the sake of nanostructural consideration and diagnosis of the corrosion type. Thus, a cycle of annealing operation at 300 ºC and spanning one hour, which is an appropriate cycle to achieve the eligible characteristics of corrosion and mechanical for the welded stainless steel, was applied. The results of both EDS analysis and SEM images showed that in the area affected by welding and weld nuggets, carbide sinters are formed, and the majority of observed phases amid granules stem from the formation of various metallic carbides like ferrite carbide, chrome carbide, and niobium carbide.
