Comparative study of corrosion resistance between four non-commercial high manganese steel models and 9% nickel steel in aqueous solution of H2SO4

Abstract The present study aims to establish a comparison of corrosion resistance between four (non-commercial) high manganese steel models in relation to 9% nickel steel in an aqueous solution of H2SO4. High manganese steels have emerged as an alternative material for the manufacture of equipment for the storage and transportation of liquefied petroleum gas due to their mechanical properties and mainly for the lower cost compared to 9% nickel steel. The electrochemical techniques used were open circuit potential, linear polarization and electrochemical impedance spectroscopy. The results obtained by these techniques have helped to understand the phenomena that produce a lower corrosion resistance of high manganese steels when compared to 9% nickel steel in aqueous solutions.

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Comparative study of corrosion resistance between four non-commercial high manganese steel models and 9 % nickel steel in aqueous solution of H2SO4

International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde) ◽

10.3139/146.111925 ◽

2020 ◽

Vol 111 (8) ◽

pp. 661-667

Author(s):

Mauro Andres Cerra Florez ◽

Jorge Luiz Cardoso ◽

Hamilton Ferreira Gomes de Abreu ◽

Walney Silva Araújo ◽

Marcelo José Gomes da Silva

Keyword(s):

Aqueous Solution ◽

Corrosion Resistance ◽

Comparative Study ◽

Manganese Steel ◽

Nickel Steel ◽

High Manganese ◽

High Manganese Steel

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Characterization and Comparative Analysis of Corrosion Resistance of 4 High Manganese Steels Models in Aqueous Solution of NaCl

Materials Research ◽

10.1590/1980-5373-mr-2019-0283 ◽

2019 ◽

Vol 22 (suppl 1) ◽

Author(s):

Mauro Andres Cerra Florez ◽

Marcos Natan da Silva Lima ◽

Walney Silva Araújo ◽

Marcelo José Gomes da Silva

Keyword(s):

Aqueous Solution ◽

Corrosion Resistance ◽

Comparative Analysis ◽

High Manganese ◽

High Manganese Steels ◽

Manganese Steels

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Influence of Heat Treatment on Wear Resistance of Alloyed Hadfield Steel and Phase Transformations in it

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.265.640 ◽

2017 ◽

Vol 265 ◽

pp. 640-645

Author(s):

K.N. Vdovin ◽

N.A. Feoktistov ◽

D.A. Gorlenko

Keyword(s):

Heat Treatment ◽

Wear Resistance ◽

Thermo Gravimetric Analysis ◽

Research Work ◽

Manganese Steel ◽

Gravimetric Analysis ◽

High Manganese ◽

High Manganese Steel ◽

High Manganese Steels ◽

Manganese Steels

The paper investigates the influence of alloying of high manganese steel with various materials on its wear resistance. It describes the results of differential scanning calorimetry and thermo-gravimetric analysis obtained in the process of thermal investigation of high manganese steel alloyed with different materials. The processes taking place in alloyed high manganese steel during heat treatment were considered. Besides, the paper shows the results of investigation of kinetics of oxidation of high manganese steels, temperatures of the start and completion of carbide decomposition and carbon burning; the comparative analysis of these processes was carried out. The research group determined the qualitative characteristics of the steel decarburization process depending on the implemented alloying scheme of high manganese steel. Scientific justification was given to the results obtained in the research work. The technological recommendations, which make it possible to calculate the optimum hardening temperature of high manganese steels, were given. General conclusions were made in the final part of the paper.

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Corrosion of Resulfurized Free-Machining Stainless Steels

CORROSION ◽

10.5006/0010-9312-26.12.511 ◽

1970 ◽

Vol 26 (12) ◽

pp. 511-528 ◽

Cited By ~ 23

Author(s):

MICHAEL HENTHORNE

Keyword(s):

Heat Treatment ◽

Corrosion Resistance ◽

Stainless Steels ◽

Salt Spray ◽

High Manganese ◽

Chromium Alloys ◽

Residual Sulfur ◽

High Manganese Steels ◽

Corrosion Susceptibility ◽

Manganese Steels

Abstract The influence of manganese (0.3 to 2.4%), sulfur (0.01 to 0.4%), sulfide composition, and heat treatment on the corrosion resistance of 13% chromium, 17% chromium and 18% chromium-9% nickel steels has been investigated. Corrosion in acid solutions, high humidity, and salt spray is dependent upon sulfide composition which in turn is determined by the manganese to sulfur ratio in the steel. Low manganese resulfurized stainless steels which contain chromium rich sulfides are inherently more corrosion resistant than high manganese steels containing manganese rich sulfides. The influence of heat treatment on the corrosion resistance of resulfurized steels is similar to that for residual sulfur grades. Sulfide composition also controls the behavior of these steels during nitric acid passivation treatments. Highly oxidizing solutions must be used to avoid attack during these treatments particularly for steels with high manganese to sulfur ratios. These solutions do not dissolve the commonly used tool steels (particles of which might be imbedded in the surface of a machined part) but can improve subsequent corrosion resistance by removing deleterious manganese rich sulfides. These improvements are most marked in the high manganese 13% chromium alloys. Passivation treatments can increase the corrosion susceptibility of cross section areas in low manganese resulfurized stainless steels.

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A Comparison of Fracture Toughness and Fatigue Crack Propagation Characteristics of High Manganese and Nickel Steels

Volume 4: Materials Technology ◽

10.1115/omae2018-77247 ◽

2018 ◽

Author(s):

Jeong-Yeol Park ◽

Myung-Hyun Kim

Keyword(s):

Fracture Toughness ◽

Fatigue Crack ◽

Low Temperature ◽

Natural Gas ◽

Structural Integrity ◽

Liquefied Natural Gas ◽

Manganese Steel ◽

Nickel Steel ◽

High Manganese ◽

High Manganese Steel

Recently, demands for liquefied natural gas (LNG) are increased by developing countries such as China, India and Middle East area. In addition, the International Maritime Organization (IMO) reinforced regulations to avoid the serious environmental pollution. This trend has led to manufacturing and operating various LNG vessels such as liquefied natural gas carrier (LNGC), floating liquefied natural gas (FLNG) and very large gas carrier (VLGC). In the design of LNG vessels, the structural integrity of LNG storage tank is of significant importance to satisfy the service conditions. In order to secure structural integrity, LNG storage tank is fabricated with low temperature materials. In general, low temperature materials such as SUS304L, Invar alloy, Al 5083-O, nickel alloy steel and high manganese steel exhibit excellent fatigue and fracture performances at cryogenic temperature. In particular, high manganese steel has attracted interest because they are potentially less expensive than the competing other low temperature materials. This study compares the fracture toughness and fatigue crack growth characteristics of high manganese steel with those of nickel steels. In addition, fracture toughness and fatigue crack growth rate tests for various nickel steels are conducted according to BS 7448 and ASTM E647, respectively. In order to obtain less conservative design values, the results of high manganese steel and various nickel steels were compared to those of BS7910. As a result, the CTOD value of high manganese steel is higher than that of 9% nickel steel at cryogenic temperature. In case of FCGR, the high manganese steel and 9% nickel steel are found to be similar to each other.

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Effect of CaO–SiO2–Al2O3–MgO top slag on solute elements and non-metallic inclusions in Fe-xMn(x = 10, 20 mass pct) steel

Metallurgical Research & Technology ◽

10.1051/metal/2021025 ◽

2021 ◽

Vol 118 (3) ◽

pp. 302

Author(s):

Huixiang Yu ◽

Dexin Yang ◽

Muming Li ◽

Ni Zhang

Keyword(s):

Reaction System ◽

Manganese Steel ◽

High Manganese ◽

Precise Control ◽

Metallic Inclusions ◽

Steel Cleanliness ◽

Steel Grades ◽

High Manganese Steels ◽

Manganese Steels ◽

Top Slag

Medium/high manganese steels have broad application prospects in automotive industry, cryogenic material, etc. because of excellent properties. Precise control on steel composition and improvement of cleanliness are very important for commercial production of these steel grades. In this study, the effect of CaO–SiO2–Al2O3–MgO slag on solute elements and inclusions of Fe-xMn(x = 10, 20 mass pct) steel was studied and discussed. After slag/steel reaction, the concentration of Mn and S in steel reduced, while Si increased. Most MnO type inclusions, which were the main inclusions in master high manganese steel, transformed to MnO–SiO2 type and MnO–Al2O3–MgO type, with MnO–SiO2 sharing the majority. Thermodynamic analysis indicates that the change of solute elements and inclusions was mainly the result of reaction SiO2(s) + 2[Mn] = 2MnO(s) + [Si] between molten steel and top slag as well as slag desulphurization. Increase of oxygen potential of the reaction system would restrain the reaction. Because of the inclusion absorption by top slag, large sized inclusions decreased and steel cleanliness improved greatly after CaO–SiO2–Al2O3–MgO slag was added.

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Analysis of residual stress in welding parts of cryogenic materials for LNG storage tank

Modern Physics Letters B ◽

10.1142/s0217984920400308 ◽

2020 ◽

Vol 34 (07n09) ◽

pp. 2040030

Author(s):

Chang Wook Park ◽

Sung Won Yoon ◽

Je Hyoung Cho ◽

Yun Hae Kim

Keyword(s):

Residual Stress ◽

Longitudinal Direction ◽

Manganese Steel ◽

Nickel Steel ◽

Storage Tanks ◽

High Manganese ◽

High Manganese Steel ◽

The World ◽

Residual Stress Analysis ◽

Transient Thermal

Research in LNG fueled ships are actively underway in the world. Accordingly, various materials were widely used as materials for storage tanks for ultra-low temperatures, and high manganese steel for ultra-low temperature was recently developed. In this paper, the transient thermal and residual stress analysis of the welding of 9% nickel steel and high manganese steel are presented. 9% nickel steel tended to have higher transverse direction stress and longitudinal direction stress than high manganese steel.

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