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|Title: ||Failure analysis and characterization of Ferrous-Base alloy exposed in seawater environment|
|Authors: ||Mohammed Misbahul Amin|
Che Mohd Ruzaidi, Ghazali
|Keywords: ||Ferrous-base alloy;Failure analysis;Characterization;Scanning electron microscopes;EDS;Steel, Stainless -- Corrosion;Seawater;Corrosion|
|Issue Date: ||3-Dec-2008|
|Publisher: ||Universiti Kebangsaan Malaysia (UKM)|
|Series/Report no.: ||Malaysian Metallurgical Conference (MMC 2008|
|Abstract: ||Ferrous-base alloy are well-suited and widely used for a broad range of engineering
applications such as structural steelwork, pipelines, vessels in refineries, thermal power plant establishment, etc. not for their corrosion resistance but for their reasonably good mechanical properties of strength, toughness, ductility and hardness; ease of fabrication and low cost. The study focused on determining the corrosion susceptibility of the ferrous-base alloy in
presence of seawater environment in a stagnant condition under service condition.
Corroded scraps ferrous-base alloy discarded after use in different seawater environments
were collected for failure analysis to determine the causes of deterioration and
degradation of alloy. The alloy samples as well as the deposits were investigated and
characterized by using Scanning Electron Microscope (SEM), Energy Dispersive Spectroscopy (EDS) and Rockwell Hardness Test. The purpose is to trace the causes of
failure mode; to check the nature and purity of the metal and corrosion deposits; to
determine whether any unusual impurities has been present in the medium and to verify if
the equipment confirms to the stated specification of fabrication and design.
Immersed in seawater, the alloy of incomplete recrytallisation showed thick, loose and porous films, of which the outer layers contained a great amount of seawater species, and of which the underlying substrate was found with severe inter-granular, pitting & crevice corrosion|
|Description: ||Organized by Universiti Kebangsaan Malaysia (UKM), 3rd - 4th December 2008 at Danau Golf Club, Bangi, Selangor.|
|Appears in Collections:||Conference Papers|
Kamarudin Hussin, Brig. Jen. Dato' Prof. Dr.
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