Structural analysis and intergranular corrosion tests of AISI 316L steel

Stonawska, Zuzana; Svoboda, Milan; Sozańska, M.; M, Krístková; Sojka, Jaroslav; Dagbert, C.; Hyspecká, L.

doi:10.1111/j.1365-2818.2006.01664.x

Cited by 9 publications

(7 citation statements)

References 3 publications

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“…The results of EPR-DL showed that ASIS 316L manufactured by SLM indicates minor signs of grain boundary sensitization, and it was confirmed that both heat treatment strategies used even improved intergranular corrosion resistance. Previous studies performed on continuously casted AISI 316L [74,75] revealed significant grain boundary sensitization after heat treatment at 650 • C/H 2 O due to the precipitation of chromium-rich secondary phases along the grain boundaries (mainly the M 23 C 6 and σ-phase). The exact opposite effect was confirmed for additively manufactured material heat treated at the same temperature used for research in this paper.…”

Section: Discussionmentioning

confidence: 96%

“…This resulted in an increasing of chromium volume content along grain boundaries and their possibility of spontaneous repassivation, even under conditions of aggressive sulfuric acid solution used for testing [77]. The indisputable fact is that powders used for the SLM method contained considerably lower carbon content than material used for experiments presented in studies: [74,75], which resulted in a reduced amount of chromium-rich carbide precipitated along grain boundaries, causing a less significant change of chromium dissolved in solid solution.…”

Section: Discussionmentioning

confidence: 99%

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Complex Corrosion Properties of AISI 316L Steel Prepared by 3D Printing Technology for Possible Implant Applications

et al. 2020

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This paper deals with the investigation of complex corrosion properties of 3D printed AISI 316L steel and the influence of additional heat treatment on the resulting corrosion and mechanical parameters. There was an isotonic solution used for the simulation of the human body and a diluted sulfuric acid solution for the study of intergranular corrosion damage of the tested samples. There were significant microstructural changes found for each type of heat treatment at 650 and 1050 °C, which resulted in different corrosion properties of the tested samples. There were changes of corrosion potential, corrosion rate and polarization resistance found by the potentiodynamic polarization method. With regard to these results, the most appropriate heat treatment can be applied to applications with intended use in medicine.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Complex Corrosion Properties of AISI 316L Steel Prepared by 3D Printing Technology for Possible Implant Applications

et al. 2020

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“…Under certain conditions, the precipitation of intermetallic compounds of (Fe, Cr)Mo 2 or (Cr, Ni, Fe) 3 P 2 type can occur. According to Stonawská et al, the structural sensitization of 316 L steel is due to the precipitation of secondary phases along the grain boundaries [59]. The studies of Liu et al regarding 316 L steels [60] and Fujii et al [61] regarding 304 steel, also supports this statement.…”

Section: #750_2mentioning

confidence: 90%

Corrosion Susceptibility and Allergy Potential of Austenitic Stainless Steels

Reclaru¹,

Ardelean

2020

Materials

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Although called stainless steels, austenitic steels are sensitive to localized corrosion, namely pitting, crevice, and intergranular form. Seventeen grades of steel were tested for localized corrosion. Steels were also tested in general corrosion and in galvanic couplings (steels–precious alloys) used in watchmaking applications. The evaluations have been carried out in accordance with the ASTM standards which specifically concern the forms of corrosion namely, general (B117-97, salt fog test), pitting (G48-11, FeCl3), crevice (F746-87) and intergranular (A262-15, Strauss chemical test and G108-94, Electrochemical potentiodynamic reactivation test). All tests revealed sensitivity to corrosion. We have noticed that the transverse face is clearly more sensitive than the longitudinal face, in the direction of rolling process. The same conclusion has been drawn from the tests of nickel release. It should be pointed out that, despite the fact that the grade of steel is in conformity with the classification standards, the behavior is very different from one manufacturer to another, due to parameters dependent on the production process, such as casting volume, alloying additions, and deoxidizing agents. The quantities of nickel released are related to the operations involved in the manufacturing process. Heat treatments reduce the quantities of nickel released. The surface state has little influence on the release. The hardening procedures increase the quantities of nickel released. The quantities of released nickel are influenced by the inclusionary state and the existence of the secondary phases in the steel structure. Another aspect is related to the strong dispersion of results concerning nickel release and corrosion behavior of raw materials.

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“…Ketika baja tahan karat austenitic terpapar dalam waktu yang lama pada suhu antara 500 dan 850 o C terjadi proses presipitasi karbida. Sejumlah besar fase selain Cr 23 C 6 terbentuk antara lain Cr 6 C dan fase sigma, fase intermetalik chi dan laves [3]. Fase sigma yang terbentuk memiliki kandungan kromium dan molybdenum yang lebih tinggi dibandingkan dengan fase austenite sehingga presipitasi di batas butir menyebabkan deplesi unsur-unsur tersebut pada bagian matriksnya.…”

Section: Pendahuluanunclassified

Analisis Pengaruh Heat Treatment Terhadap Sifat Mekanik dan Ketahanan Korosi Intergranular SA-240 TP316L

Setiawan¹,

Pribadhi²,

Ari³

2020

j. St. terap

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Intergranular corrosion is a problem that often occurs in welding stainless steel materials. Intergranular corrosion is caused by carbide precipitation which occurs at a temperature of 850 o C, causing a reduction in chromium content in the Heat Affected Zone (HAZ). The intergranular corrosion process can be controlled by the heat treatment method after the welding process. This study aims to study the effect of heat treatment on mechanical properties and intergranular corrosion resistance of SA240 TP316L material. The variation of heat treatment were divided into three solution treatment (ST), quenching treatment (QC), and non-treatment (NT). Mechanical properties testing using tensile test while corrosion resistance testing using linear polarization using H 2 SO 4 0.1 M solution. Morphology and metal composition in the HAZ area were analyzed using SEM-EDX. Tensile test results showed that welding with ST had the lowest yield strength, ultimate strength, and elongation values compared to specimens of 407.55 MPa, 599.33 MPa, and 44.53%. Corrosion test results found that welding with solution treatment has the lowest corrosion rate compared to specimens with quenching treatment (QC) and non treatment (NT). Corrosion rate in each ST, QC, and NT specimens was 0.90; 1.03; and 2.35 mmpy. The results showed that the solution treatment process can improve intergranular corrosion resistance.

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Structural analysis and intergranular corrosion tests of AISI 316L steel

Cited by 9 publications

References 3 publications

Complex Corrosion Properties of AISI 316L Steel Prepared by 3D Printing Technology for Possible Implant Applications

Complex Corrosion Properties of AISI 316L Steel Prepared by 3D Printing Technology for Possible Implant Applications

Corrosion Susceptibility and Allergy Potential of Austenitic Stainless Steels

Analisis Pengaruh Heat Treatment Terhadap Sifat Mekanik dan Ketahanan Korosi Intergranular SA-240 TP316L

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