Study the Percentage of Carbon and Ferrite in Layers of Steel (SA-516) by Strip Cladding with E316L
الموضوعات :
Ahmad Afsari
1
(Department of Mechanical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran)
Dara Fazel
2
(Department of Mechanical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran)
Jafar Karimisharifabadi
3
(Department of Mechanical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran)
Vahid Mehrabi
4
(Department of Mechanical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran)
الکلمات المفتاحية: Cladding, stainless steel, Electro Slag Welding, Carbon Ferrite Percentage, Strip Electrode,
ملخص المقالة :
One of the most important methods to reduce metal corrosion and improve erosion resistance is to use strip cladding with electro slag welding. Applying the strip electrode (E316l), cladding performed on the layer of steel (5A-516) with this process. With changes in the thickness of cladding layers and the number of these layers, the percentages of ferrite and carbon in samples obtained by WRC equipment were analyzed. The optical microscopy is used to investigate the microstructure of different cladding layers in this research work. Hence, with the increase in the percentage of carbon, the sensitivity of stainless steel to grain boundary corrosion increases. With the reduction of ferrite percentage, the sensitivity to hot cracking increased too, so the overall results indicate that with an increase in the thickness of the first cladding layer, the amount of carbon in this layer increases, this phenomenon reduces the percentage of ferrite in it. Hence, by increasing the number of cladding layers, the amount of carbon percentage reduces considerably while the ferrite percentage reaches the desired amount.
1] Chiu, K.Y., Cheng, F.T. and Man, H.C. 2006. Corrosion behavior of AISI 316L stainless steel surface-modified with NiTi. Surface and Coatings Technology. 200(20-21):6054-61.
[2] Vitanov, V.I., Javaid, N. and Stephenson, D.J. 2010. Application of response surface methodology for the optimization of micro friction surfacing process. Surface and Coatings Technology. 204(21-22):3501-3508.
[3] Khalid Rafi, H., Janaki Ram, G.D., Phanikumar and G., Rao, K.P. 2010. Microstructure and properties of friction surfaced stainless steel and tool steel coatings. Materials Science Forum. 638: 864-869.
[4] Amushahi, M.H., Ashrafizadeh, F. and Shamanian, M. 2010. Characterization of boride-rich hard facing on carbon steel by arc spray and GMAW processes. Surface and Coatings Technology. 204(16-17):2723-2728.
[5] Tabatabaeipour, S.M. and Honarvar, F. 2010. A comparative evaluation of ultrasonic testing of AISI 316L welds made by shielded metal arc welding and gas tungsten arc welding processes. Journal of materials processing technology. 210(8):1043-1050.
[6] Rafi, H.K., Ram, G.J., Phanikumar, G. and Rao, K.P. 2011. Microstructural evolution during friction surfacing of tool steel H13. Materials & Design. 32(1):82-87.
[7] Rajani, H.Z., Torkamani, H., Sharbati and M., Raygan, S. 2012. Corrosion resistance improvement in Gas Tungsten Arc Welded 316L stainless steel joints through controlled preheat treatment. Materials & Design. 34:51-57.
[8] Govardhan, D., Kumar, A.C., Murti, K.G and Reddy, G.M. 2012. Characterization of austenitic stainless steel friction surfaced deposit over low carbon steel. Materials & Design. 36:206-214.
[9] Puli, R. and Ram, G.J. 2012. Corrosion performance of AISI 316L friction surfaced coatings. Corrosion Science. 62:95-103.
[10] Dehaghi, E.M., Arezoodar, A.F. and Sattarifar, I. 2018. Numerical and Experimental Investigation of Layer Number Effect on Residual Stresses in Cladding Process. 49(4):295-298.
[11] Katsuyama, J., Nishikawa, H., Udagawa, M., Nakamura, M. and Onizawa, K. 2013. Assessment of residual stress due to overlay-welded cladding and structural integrity of a reactor pressure vessel. Journal of Pressure Vessel Technology. 135(5):051402.
