Hardening of Austenitic Nitrogen High-Manganese Aluminum Alloys Under Heat and Thermomechanical Treatment

Капуткина, Л. М.; Svyazhin, A. G.; Smarygina, I. V.

doi:10.1007/s11041-016-9946-2

Cited by 7 publications

(2 citation statements)

References 5 publications

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“…It can be mentioned that the presence of Al and Ni suppresses the transformation of austenite into ε ‐martensite. [ 47 ] For low deformation, the (220) peak is the most intense, followed by the (111) peak. As the degree of deformation increased, the intensity of (220) decreased and of (111) increased, indicating changes in crystallographic texture.…”

Section: Resultsmentioning

confidence: 99%

Microstructural Parameters of Cold‐Rolled and Annealed Fe–24Mn–3Al–1Ni–2Si–0.06C Steel Obtained by X‐Ray Diffraction

de Lima,

Siqueira,

Freitas Neto

et al. 2023

steel research int.

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Twinning‐induced plasticity (Twip) steel is characterized by the presence of twins and austenite at room temperature. In the present work, Fe‐24Mn‐3Al‐1Ni‐2Si‐0.06C steel is cold‐rolled at 30, 50, and 80%, thickness reduction and subsequently annealed at temperatures between 300 and 1100°C for 15 min. The microstructure, and hardness are analyzed and dislocation density, stacking fault, and twin probability are calculated using the diffraction method based on the intensity of X‐rays generated in a synchrotron facility. The Rietveld analysis using Materials Analysis Using Diffraction (MAUD) software was performed, and Popa Model was employed. Cold rolling increases hardness due to the formation of deformation twins, stacking fault, and dislocation in different degrees depending on the thickness reduction. During annealing, recrystallization influences the parameters obtained by X‐ray diffraction such as stacking fault probability and dislocation density.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

Microstructural Parameters of Cold‐Rolled and Annealed Fe–24Mn–3Al–1Ni–2Si–0.06C Steel Obtained by X‐Ray Diffraction

de Lima,

Siqueira,

Freitas Neto

et al. 2023

steel research int.

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“…34 Carbon promotes the formation of carbides, retards martensitic transformation, and induces twinning. 35,36 Al and C increase the stacking fault energy and cause the formation of nano-sized (Fe,Mn) 3 AlC κ-carbides on ageing which is usually performed at 500–600°C. 37,38 Also, short-range ordering was observed in cF4 solid solution type Fe–Mn–Al–C alloys.…”

Section: Introductionmentioning

confidence: 99%

High entropy Fe–Mn–Ni–Co–Al–C alloys from an industrial steel

Semin,

Jiang,

Zanaeva

et al. 2024

Materials Science and Technology

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High entropy alloys (multiprinciple element alloys) were produced by dilution of the base component in a Fe–Mn–Al–C alloy. The studied Fe–Mn–Ni–Al–C and Fe–Mn–Ni–Co–Al–C alloys were treated thermally and mechanically. These alloys were studied by X-ray diffractometry and electron microscopy, while mechanical properties were tested by mechanical loading. A dual-phase cF4 and cP2 structure was formed. The alloys showed high-hardness values and high-strain hardening ability but when hot rolled exhibited precipitation of carbides. These alloys are considered to be model alloys for the development of future high-entropy alloys based on industrial steels.

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Precipitation Refinement via Aging Time Modification for Enhancing Wear Resistance in Ti–V–Nb Microalloyed High‐Manganese Steels

Cao,

Chen,

et al. 2024

steel research int.

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It is imperative to ensure an even distribution of refined precipitates to enhance wear resistance. Herein, different heat treatments are to control the size and distribution of precipitates. The treatments include water quenching at 1100 °C followed by aging at 400 °C for 24, 60, and 84 h, designated as AT24, AT60, and AT84, respectively. The microstructure, mechanical properties, and impact wear properties of high‐manganese steel are investigated under solution and aging conditions using scanning electron microscopy, field‐emission scanning electron microscopy, tensile testing, and impact abrasive wear testing. Notably, the absence of nanoscale precipitates largely accounts for the poor wear resistance of as‐casting steel, whereas the strengthening effect of larger micrometer‐sized precipitates is insufficient. After the solution and aging treatment, nanosized precipitates continuously form within the matrix, conducive to the formation of the deeper work‐hardening layer, thereby improving the wear resistance. The fine micrometer‐sized precipitates and evenly distributed nanoscale precipitates in AT60 actively contribute to toughness. Additionally, these precipitates interact with slip dislocations, providing stronger strengthening via the Orowan looping mechanism. The wear mechanisms of steel can be transformed from wide, deep pits to shallow grooves and microcutting by extending the aging time.

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Hardening of Austenitic Nitrogen High-Manganese Aluminum Alloys Under Heat and Thermomechanical Treatment

Cited by 7 publications

References 5 publications

Microstructural Parameters of Cold‐Rolled and Annealed Fe–24Mn–3Al–1Ni–2Si–0.06C Steel Obtained by X‐Ray Diffraction

Microstructural Parameters of Cold‐Rolled and Annealed Fe–24Mn–3Al–1Ni–2Si–0.06C Steel Obtained by X‐Ray Diffraction

High entropy Fe–Mn–Ni–Co–Al–C alloys from an industrial steel

Precipitation Refinement via Aging Time Modification for Enhancing Wear Resistance in Ti–V–Nb Microalloyed High‐Manganese Steels

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