#TITLE_ALTERNATIVE#

• Main Author: AKBARY (NIM : 13706037); Pembimbing 1 : Dr. Ir. Slameto Wiryolukito; Pembimbing 2 : Dr. Ir., FAUZAN
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/15650
• Institution: Institut Teknologi Bandung

Pipeline proves to be an important means for corrosive fluid transport which have to be protected from corrosion to obtain an efficient life time. Clading system, a process to apply corrosion resistance material onto Carbon Steel substrate, is a good corrosion and widely used protection method for pipeline system. Clad pipe with Incoloy 825 as a clad layer and Carbon Steel API 5L-X42 Steel as backing metal was tested for Hydrogen Induced Cracking Corrosion (HIC). Two conditions were undertaken, within full clad layer condition and intentionally removed the clad layer condition. HIC Test refers to NACE TM0284 using Solution B was applied to samples with a full clad layer and samples that was intentionally removed the clad layer by drilling it with 1 mm, 3 mm, and 5 mm hole diameters. HIC test was carried out for 96 and 720 hours. The Result shows the pipe with full clad system survived from HIC; and pipe with clad material removed was not develop HIC phenomenon although it experienced a galvanic corrosion on the interface between clad to substrate exposed to HIC media. Galvanic Corrosion occurred at Backing Metal exactly at interface between backing steel to clad at hole of the clad layer. Further analysis indicates the Galvanic Corrosion Rate was affected by ratio of cathode and anode area, the higher value of cathode and anode ratio results in a higher galvanic corrosion rate.