Effects of grain boundary characteristics changing with cold rolling deformation on intergranular corrosion resistance of 443 ultra-pure ferritic stainless steel

Shang, BingGang; Lei, Longlin; Wang, Xiangyu; He, Pei; Yuan, Xinzhe; Dai, Weihui; Li, Jin; Jiang, Yiming; Sun, Yangting

doi:10.1016/j.corcom.2022.07.002

Cited by 28 publications

(5 citation statements)

References 41 publications

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“…Furthermore, Figure 4 displayed the potentiodynamic plot of the control steel as well as the chromium nickel in about 3.5 % NaCl environment. It could be observed that the polarization plots of the control sample and the chromium nickel demonstrated an active behavior [39]. This indicated that there was positive action of in the self-corrosion potentials as well as reduction in self-corrosion density.…”

Section: Microstructures Of Alloy Steelmentioning

confidence: 84%

Emerging Behaviour of Alloy Steel Microstructure in Hydrogen Sulphide Environment - A Review

Lawal,

Afolalu,

Jen

et al. 2024

SSP

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Alloy steel is known to be different from carbon steel due to the presence of the alloying element in varying compositions which is usually done for the purpose of modifying and improving the performance of the steel. However, a major problem with the alloy steel is that it usually exhibits different behavior in terms of the microstructures and the mechanical properties, especially, in sulphide environment. Thus, this study focused on the different microstructure of alloy steel and their performance in different environment with strong emphasis in sulphide environment. It was established in the study that a major problem of alloy steel in hydrogen sulphide environment is the sulphide stress cracking which is attributed to the presence of hydrogen and its absorption by the alloy steel. Hence, this study provides a potential guide and information on the capacity of the grades of alloy steel that can thrive in sulphide environment.

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Section: Microstructures Of Alloy Steelmentioning

confidence: 84%

Emerging Behaviour of Alloy Steel Microstructure in Hydrogen Sulphide Environment - A Review

Lawal,

Afolalu,

Jen

et al. 2024

SSP

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“…Namun, penelitian ini lebih menekankan pengaruh tegangan sisa terhadap laju korosi. Ditemukan bahwa batas butir dengan cacat lebih banyak cenderung lebih sensitif terhadap korosi intergranular karena perlindungan yang lebih lemah dalam larutan asam pereduksi [12]. Penelitian ini juga menunjukkan bahwa laju korosi meningkat pada logam las dan HAZ ketika sudut single V joint meningkat karena peningkatan tegangan sisa terkait dengan volume pengisian logam las yang lebih besar.…”

Section: F74unclassified

Pengaruh Sudut Single V Joint terhadap Laju Korosi, Kekuatan Tarik dan Struktur Mikro Pelat Baja A36 dengan Pengelasan SMAW Menggunakan Elektroda E7018 pada Lingkungan Laut

Cahyadi,

Subiyanto

2024

JTITS

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Print) F70 Abstrak-Variasi sudut single V joint mempengaruhi deposit bahan tambah dan efisiensi sambungan pengelasan pada pelat baja A36. Sudut pengelasan 55°, 65°, dan 75° diuji dengan elektroda E7018, diameter 3,2 mm. Pengujian korosi menggunakan NaCl 3,5% sebagai media dengan laju korosi meningkat seiring peningkatan sudut pengelasan. Pada sudut 55°, laju korosi HAZ adalah 0.29 mm/year dan WM 0.36 mm/year. Sudut 65° memiliki laju korosi HAZ 0.94 mm/year dan WM 1.66 mm/year. Sudut 75° memiliki laju korosi HAZ 2.73 mm/year dan WM 6.55 mm/year. Pengujian tarik menunjukkan patahan pada base metal yang menunjukkan kecocokan pemilihan elektroda dan metode multipass pengelasan. Patahan juga terjadi pada weld metal akibat porositas. Sudut single V joint juga mempengaruhi ukuran butir pada HAZ dan weld metal dengan peningkatan sudut menyebabkan peningkatan ukuran butir. Transformasi fasa tidak terjadi dalam semua variasi sudut.

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“…where E mec seg is the mechanical contribution, which originates from strain distortion before and after the impurity atom segregation at the GB, while E chem seg is closely related to the bond energies. The mechanical contribution can be calculated as Equation (4).…”

Section: Computational Detailsmentioning

confidence: 99%

“…Grain boundary engineering (GBE) was introduced to steel design to improve performance and has attracted considerable attention in recent years [1,2]. Grain boundary, as an indispensable part of steel, is closely related to the mechanical and chemical properties, such as mechanical strength and corrosion resistance [3][4][5][6][7]. Herein, it is significant to tailor the properties of steel through GBE, which has inspired substantial research efforts.…”

Section: Introductionmentioning

confidence: 99%

First Principles Study of the Effects of Si, P, and S on the ∑5 (210)[001] Grain Boundary of γ-Fe

Xu,

Cao,

Huang

et al. 2024

Metals

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Solutes segregating at the grain boundary (GB) have a significant influence on the mechanical and chemical properties of steel. In this study, the segregation effects of Si, P, and S on γ-Fe ∑5 (210)[001] GB were systematically analyzed with solution energy, segregation energy, and tensile tests by using a first principles calculation. Si, P, and S are preferred to segregate at substitutional sites in the first layer near the GB. The variation in atomic configuration and electron distribution were investigated by the analysis of bond lengths, charge density, charge density difference, and density of states (DOS), which is caused by the atomic size and electronegativity of solute atoms. Through tensile tests, it was found that Si has a strengthening effect on GB, while P and S exhibit embrittlement effects at low concentration. As the concentration of solutes increase, the segregation sites of P are different from the others owing to the tendency to form Fe3P. The exhibited embrittlement effect is mitigated at first and then aggravated. However, in both cases Si and S show aggravating embrittlement effects on GB cohesion, while the effect of Si changes from strengthening to embrittlement. This work provides comprehensive insights into the effects of Si, P, and S, which will be a useful guidance in steel design.

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Effects of grain boundary characteristics changing with cold rolling deformation on intergranular corrosion resistance of 443 ultra-pure ferritic stainless steel

Cited by 28 publications

References 41 publications

Emerging Behaviour of Alloy Steel Microstructure in Hydrogen Sulphide Environment - A Review

Emerging Behaviour of Alloy Steel Microstructure in Hydrogen Sulphide Environment - A Review

Pengaruh Sudut Single V Joint terhadap Laju Korosi, Kekuatan Tarik dan Struktur Mikro Pelat Baja A36 dengan Pengelasan SMAW Menggunakan Elektroda E7018 pada Lingkungan Laut

First Principles Study of the Effects of Si, P, and S on the ∑5 (210)[001] Grain Boundary of γ-Fe

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