بررسي و مطالعه ميزان چسبندگي پوشش فولاد زنگ نزن L۳۱۶ ايجاد شده بر روي فولاد ۱۲۴۸/١ به دو روش پاشش شعله اي و الكترواسپارك (ESD)

Evaluation of the Adhesion Strength of 316 L Stainless Steel Coating Deposited on the 1/1248 Steel by Flame Spraying and Electro - Spark (ESD) Methods

In this study, the adhesion strength of 316 L stainless steel coating deposited on the surface of 1/1248 steel by methods of flame spraying and electro - spark deposition (ESD) was investigated. For measuring adhesion and also bending strengths, the required samples according to Standard Numbers ASTM C633-01 ASTM B 489-85 were prepared, respectively. The characterization of deposited layers on the samples by the two methods was performed using the X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. The results also reveal that adhesion strength of the coating deposited by electro - spark is much higher than that of flame spraying coating. No crack was created on coated layers by ESD, during the bending tests.