Effects of FCAW Welding Repair on Properties of Welding Joint of AH36/2205 Stainless Steel Composite Plate
Since reducing the use of precious alloying elements,AH36/2205 stainless steel clad plate brings huge economic benefits in the application.Welding repair is unavoidable due to the difference in physical and chemical properties between composite layer and base layer and the instability of welding quality.In order to study the effect of weld repair on the properties of welded joints,three weld repair tests were carried out by using flux cored arc welding(FCAW)for 14 mm+2 mm AH36/2205 stainless steel clad plates.The results show that AH36/2205 stainless steel clad plate is not suitable for weld repair by FCAW.The pitting rate of one-time repair reaches 167.7 mdd.With the increase of repair times,the mechanical properties and intergranular corrosion resistant properties are excellent,while the pitting rate increases,and the pitting resistance of the joints decreases.