Degradation of microstructure and properties of an AISI 316L steel pipe after more than 100,000 hours usage at 640°C in a petrochemical industry

Moraes, Flavio Pereira de; Alves, Sandro Francisco; Plaut, Ronald Lesley; Padilha, Angelo Fernando

doi:10.1016/j.prostr.2019.08.018

Cited by 13 publications

(2 citation statements)

References 6 publications

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“…The pitting susceptibility of stainless steel is increased when the water content is < 5 vol.%, while pitting is reduced for water content of more than 10 vol.% [41,42]. The long-term exposure of stainless steel to organic solvents makes it more susceptible to pitting corrosion [43,44]. The long-term exposure of stainless steel to organic solvents makes it more susceptible to pitting corrosion [43,44].…”

Section: Corrosion Behavior Of Stainless Steel In Organic Acids and R...mentioning

confidence: 99%

“…The long-term exposure of stainless steel to organic solvents makes it more susceptible to pitting corrosion [43,44]. The long-term exposure of stainless steel to organic solvents makes it more susceptible to pitting corrosion [43,44]. Recently, austenite steel (AISI 316L) has been operating in the petrochemical industry at higher temperatures for the last twenty years because of its improved mechanical and corrosion properties.…”

Section: Corrosion Behavior Of Stainless Steel In Organic Acids and R...mentioning

confidence: 99%

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Influence of Organic Acids and Related Organic Compounds on Corrosion Behavior of Stainless Steel—A Critical Review

Abbas,

Adesina,

Suleiman

2023

Metals

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Stainless steel is one of the most commonly used structural materials in industry for the transportation of liquids such as water, acids, and organic compounds. Corrosion is a major concern in industry due to the use of strong mineral acids, feedstock contamination, flow, aqueous environments, and high temperatures. Stainless steel is the most commonly used material in the petrochemical industry because of its characteristics of self-protectiveness, offered by thin passive oxides, and its metallurgical composition. However, chlorides and mineral acids attack the stainless steel continuously, consequently breaking down the passivation film, causing a continuous challenge from corrosion. The corrosion in stainless steel is influenced by many factors including flow rate, temperature, pressure, ethanol concentration, and chloride ion content. This review describes the impact of organic compounds and organic acids on the degradation behavior of stainless steel. The review also summarizes the commonly used organic compounds and their applications. It has been demonstrated that organic acid concentration, temperature, and halide impurities have significant effects on susceptibility to pitting corrosion by damaging the passivation film. The phenomenon of corrosion in stainless steel is quite different in immersion tests and electrochemical potentiodynamic polarization. This review article discusses the importance of organic compounds and their corrosion behavior on steel. The article also puts emphasis on the roles of corrosion inhibitors, monitoring methods, corrosion management, and forms of corrosion.

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Section: Corrosion Behavior Of Stainless Steel In Organic Acids and R...mentioning

confidence: 99%

Section: Corrosion Behavior Of Stainless Steel In Organic Acids and R...mentioning

confidence: 99%

Influence of Organic Acids and Related Organic Compounds on Corrosion Behavior of Stainless Steel—A Critical Review

Abbas,

Adesina,

Suleiman

2023

Metals

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Assessment of Microstructural Evolution and Mechanical Properties of Laser Metal Deposited 316L Stainless Steel

Nath

Nanda

Dinda

et al. 2021

J. of Materi Eng and Perform

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Laser metal deposition (LMD) method is considered as a promising additive manufacturing technique owing to its advanced features. This includes printing complex shaped structures via three-dimensional computer-aided-designs, laser cladding and rapid prototyping. In the present study, detailed microstructure-property correlation is pursued for a block of 316L stainless steel alloy, manufactured by LMD. Presence of fully austenitic phase with corresponding residual stresses in the as-built structure is observed through x-ray diffraction analysis. At the first hand, detailed microstructural analysis is done at the bottom and top sections of the block along the build direction. Presence of hatch structures, variation in the layer thickness along with non-uniformity in the grain size and morphology are noted at these sections. An enhancement in the layer thickness and residual stress along with coarsened grain size is noted to exist towards the top section. This is particularly reflected in achieving highest localized hardness at the bottom section, which progressively decreases towards the top, as characterized through nano-indentation. The LMD-manufactured 316L SS alloy however, exhibits strong indentation size effect along with higher global hardness and strengths with respect to the as-cast alloys. This is primarily related to the complex thermal history of the AM technique. Standard solution heat treatment of the LMD-manufactured 316L SS alloy although coarsens the grain size, minimizes the microstructural non-uniformities and residual stress. Such increment in grain size however, leads to reduction in hardness at the macro, micro-and nano-levels, in comparison to the as-built counterparts. Tensile tests of the solutionized 316L alloys reveal a reduction in yield and ultimate tensile strength along with increased ductility and toughness, thereby suggesting solution treatment as a useful measure to optimize the combination of properties. Importantly, the properties are noted to supersede those of the wrought alloys.

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Triboinformatic Machine Learning Model for Frictional Behavior and Wear Volume Loss Prediction of SS316L Alloy Clad with WC/NiCrBSi

Birada,

Pullela,

Thella

2024

J Bio Tribo Corros

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Degradation of microstructure and properties of an AISI 316L steel pipe after more than 100,000 hours usage at 640°C in a petrochemical industry

Cited by 13 publications

References 6 publications

Influence of Organic Acids and Related Organic Compounds on Corrosion Behavior of Stainless Steel—A Critical Review

Influence of Organic Acids and Related Organic Compounds on Corrosion Behavior of Stainless Steel—A Critical Review

Assessment of Microstructural Evolution and Mechanical Properties of Laser Metal Deposited 316L Stainless Steel

Triboinformatic Machine Learning Model for Frictional Behavior and Wear Volume Loss Prediction of SS316L Alloy Clad with WC/NiCrBSi

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