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Analysis of the effect of Chromium concentration (Cr) in welding electrodes on Carbon diffusion (C) at weld interface of ASTM A213 T22 material using metallographic and hardness testing methods
2019
Dinamika Teknik Mesin
A crack occurred in joinning superheater pipes made of ASTM A213T22 and ASTM A213T91 metals by welding. This crack located at the interface between parent metal and weld seam.There was the difference in Cr concentration between metal and electrodes which can caused carbon diffusion. According to Nemoto's research, this carbon diffusion could occur because the Cr concentration in ASTM A213T22 metal is lower than Cr concentration in the electrode. The diffusion of carbon can reduce the mechanical
doi:10.29303/dtm.v9i2.301
fatcat:upei73lmlrhydgo62xpngq7yyi