PERILAKU KOROSI PANAS BAJA AISI 4130 PADA TEMPERATUR 750 O C DALAM LINGKUNGAN ATMOSFER YANG MENGANDUNG KLOR DAN SULFUR
Abstract: Steel is the main
material of an industry. In a world of steel metallurgy has a character
different from the microstructure to mechanical properties. It is therefore
very important to know well the character of a steel that can be used as
needed. If it is not appropriate in selecting a material, there will be a
failure. In this study the oxidation testing AISI 4130 steel at a temperature
of 750 C in NaCl/Na2SO4 environment. Tests performed to see the length of time
gain against corrosion, and oxidation product analyzes performed by the method
of X-RD, SEM/EDS and OM. These results
indicate that the oxide formed shows : Fe2O3, Fe3O4, FeO, and Cr2O , the steel
surface is almost the same for all the specimens were oxidized in a different
environment. The existence of deposits of NaCl and Na2SO4 deposits on the surface of AISI 4130 steel
can accelerate the oxidation process at high temperature. The existence of
chlorine gas and sulfur gas in the atmosphere causing the surface layers of
AISI 4130 steel is oxidized more rapidly than those occurring in ordinary air
environment. Damage to the surface layer of AISI 4130 steel is exacerbated by
the growth of iron rich oxide (Fe2O3)
on the protective layer. Formation is accelerated by reaction Fe and FeOCr2O3
formation on AISI 4130 steel with a deposit of NaCl and Na2SO4 deposits.
Penulis: Muhammad Ihsan Yusuf
Kode Jurnal: jptmesindd140477
