Hot Deformation and Corrosion Resistance of High-Strength Low-Alloy Steel

Kingkam, Wilasinee; Zhao, Ce Zhou; Li, Hong; Zhang, Hexin; Li, Zhiming

doi:10.1007/s40195-018-0797-2

Cited by 14 publications

(10 citation statements)

References 46 publications

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“…The best processing route identified in this study is 1423 K at 0.1 s −1 . Some results presented in the literature lead to the same understanding regarding the influence of processing conditions on the corrosion susceptibility, such as [14] [19] [20].…”

Section: Discussionmentioning

confidence: 73%

“…However, report on the relationship between the hot-deformation behavior and corrosion resistance of materials has been scarce, particularly that of the 316 L austenitic stainless steel. This is important because the microstructural evolution during the thermomechanical process influences the corrosion resistance of alloys [14] [15]. Moreover, during industrial hot forming, the best mechanism for controlling the microstructural evolution is dynamic recrystallization (DRX) [16].…”

Section: Introductionmentioning

confidence: 99%

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Thermomechanical Behavior and Corrosion Resistance of a 316 L Austenitic Stainless Steel

Ferreira¹,

Nascimento²,

Reis³

et al. 2020

MSA

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Hot-formed components are constantly exposed to hostile environments with corrosive substances. Microstructural changes caused by thermomechanical processing can be predicted to increase the corrosion resistance of austenitic stainless steels. The objective of this study is to understand the relationship between the dynamic softening mechanisms and corrosion resistance, thus optimizing the hot-forming process. In the current work, the dynamic recrystallization (DRX) behavior of AISI 316 L austenitic stainless steel was studied in the temperature range of 1273-1423 K and strain-rate range of 0.1-5.0 s −1 using physical simulation. Subsequently, potentiodynamic polarization tests and scanning electron microscopy were performed on the hot-deformed samples to investigate the influence of temperature and strain-rate on the corrosion resistance and mechanical properties. The results indicated that the DRX fractions increased under low-temperature and high strain-rate conditions, resulting in grain refinement. The potentiodynamic polarization tests indicated that the dynamically recovered samples demonstrated high resistance to corrosion compared with the DRX samples. The best route found for the investigated alloy was for the strain to be applied at a temperature of 1423 K and a strain rate of 0.1 s −1 .

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Section: Discussionmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Thermomechanical Behavior and Corrosion Resistance of a 316 L Austenitic Stainless Steel

Ferreira¹,

Nascimento²,

Reis³

et al. 2020

MSA

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show abstract

“…The initiation of cracking is caused by decohesion of the interface between inclusion and matrix. The final fracture occurs by the main crack consuming the inclusions ahead of it by the "unzipping" of the shear band produced between the crack tip and the inclusion ahead [111].…”

Section: Effect Of Inclusion On Stress Corrosion Cracking/ Corrosion Fatiguementioning

confidence: 99%

Effect of microstructure on corrosion behavior of high strength martensite steel—A literature review

Wang

Dong

Cheng

et al. 2021

Int J Miner Metall Mater

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The high strength martensite steels are widely used in aerospace, ocean engineering, etc., due to their high strength, good ductility and acceptable corrosion resistance. This paper provides a review for the influence of microstructure on corrosion behavior of high strength martensite steels. Pitting is the most common corrosion type of high strength stainless steels, which always occurs at weak area of passive film such as inclusions, carbide/intermetallic interfaces. Meanwhile, the chromium carbide precipitations in the martensitic lath/prior austenite boundaries always result in intergranular corrosion. The precipitation, dislocation and grain/lath boundary are also used as crack nucleation and hydrogen traps, leading to hydrogen embrittlement and stress corrosion cracking for high strength martensite steels. Yet, the retained/reversed austenite has beneficial effects on the corrosion resistance and could reduce the sensitivity of stress corrosion cracking for high strength martensite steels. Finally, the corrosion mechanisms of additive manufacturing high strength steels and the ideas for designing new high strength martensite steel are explored.

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“…The deformation of 5CrNiMoV steel is usually carried out at temperatures within the austenite phase field, and it has face-centered cubic (FCC) structure with relatively low stacking fault energy (SFE). Many thermal deformation mechanisms, such as vacancy clustering, dislocation accumulation and slip, austenite grain boundary sliding and bulging, dynamic recovery (DRV), metadynamic Recrystallization (MDRX), dynamic recrystallization (DRX) and austenite grain growth, may occur during deformation [1][2][3][4]. These events influence the material's flow behavior, the microstructure evolution and the final mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Deformation Behavior and Evolution of Austenite Microstructure and Texture During Hot Compression of 5CrNiMoV Steel

Wang

Yang³

2020

Metallogr. Microstruct. Anal.

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Deformation behaviour of 5CrNiMoV steel was investigated at temperature 830-1230 °C and strain rate 0.001-10 s −1 . The flow curves were analyzed to illuminate the deformation characteristics. Comprehensive austenite microstructural investigation was carried out using optical microscope for deformed samples. It was found that discontinuous dynamic recrystallization mechanism played a leading part in the nucleation of dynamic recrystallization (DRX) nuclei and growth of DRX grains, and that the austenite grain size increased with deformation temperature, while a larger strain rate was conducive to grain refinement for the quickly generated strain storage-energy favorable for higher DRX nucleation rate. The parent austenite texture evolution and typical martensitic transformation texture for some deformed samples were characterized using electron backscattering diffraction technique and the software of the reconstruction of parent austenite. It was found that increasing temperature contributed to the increase of its maximum of random distribution (MRD) and the strength of rotated Cube texture component, which was probably for the behavior DRX and growth of DRX grains during the hot deformation. The rotated Cube was weakened with the strain rate rising, while the main texture component did not change significantly, which was due to the increase in number of active slip systems and grain fragmentation. Besides, the martensitic transformation texture was related to the parent texture for the variant selection.

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Hot Deformation and Corrosion Resistance of High-Strength Low-Alloy Steel

Cited by 14 publications

References 46 publications

Thermomechanical Behavior and Corrosion Resistance of a 316 L Austenitic Stainless Steel

Thermomechanical Behavior and Corrosion Resistance of a 316 L Austenitic Stainless Steel

Effect of microstructure on corrosion behavior of high strength martensite steel—A literature review

Deformation Behavior and Evolution of Austenite Microstructure and Texture During Hot Compression of 5CrNiMoV Steel

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