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Corrosion behavior of ASTM A1008 carbon steel in mixtures of HNO3, H2SO4, and HCl using immersion and polarization methods
Widyanto B.a, Putri S.W.S.a
a Department of Materials Engineering, Faculty of Mechanical and Aerospace Engineering, Bandung Institute of Technology, Bandung, 40132, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2019 The Japan Institute of Metals and Materials.Acids provide corrosive environments that have their own behavior and characteristics when reacted with metal. Much research has been conducted to determine corrosion behavior of metals in acidic environments; however, little has been published concerning the corrosion behavior of ultralow carbon steel in mixed acid solutions, although such systems are widely used in the textile, chemical, and fertilizer industries. Corrosion behavior of ASTM A1008 ultralow carbon steel in mixtures of HNO3, H2SO4, and HCl was investigated using immersion and polarization methods. The HCl concentration was held constant at 1 M and the HNO3 and H2SO4 concentrations varied to 0.1 M, 0.5 M, and 1.0 M. Under these conditions, a synergistic effect between HNO3 and H2SO4 was observed, which thinned the metal, while HCl caused pitting of the metal surface. The results showed that the corrosion rate of the metal was enhanced as the acid concentrations increased, especially that of HNO3. The corrosion products were identified as iron(III) oxide [Fe2O3] and rhomboclase [H5Fe3+O2(SO4)2·2(H2O)].[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Acid concentrations,Acidic environment,Corrosion behavior,Corrosive environment,Fertilizer industry,Immersion,Polarization method,Ultra low carbon steel[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]ASTM A1008 steel,Corrosion,Hydrochloric acid,Immersion,Nitric acid,Polarization,Sulfuric acid[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.2320/matertrans.M2018315[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]