Atomic mean-field model of E21 ordering in γ-iron-aluminium-carbon alloys

Emo, Jonathan; Maugis, Philippe

doi:10.1016/j.jallcom.2016.12.056

Cited by 2 publications

(1 citation statement)

References 39 publications

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“…In summary, the initial stage during the aging in Fe-Mn-Al-C alloys is a compositional modulation and ordering produced by spinodal decomposition in carbon-rich or carbon and aluminum-rich zones and depleted zones. This produces the general kinetic path 𝛾 ℎ𝑡 → 𝛾 ↑𝐶 + 𝛾 ↓𝐶 → 𝛾 ↓𝐶 + 𝐿1 2 → 𝛾 ↓𝐶 + 𝜅 (however, the recent work of Emo et al (2017) [125] proposed an alternative path using an atomic mean-field model for the κ-carbide kinetic). In summary, homogeneous and coherent precipitation of nano-sized (Fe,Mn)3AlCx carbide has a E21 cubic perovskite crystal structure where the aluminum atoms occupies corner positions, iron and manganese atoms occupy face-centered positions, and carbon is located at the body center interstitial octahedral site.…”

Section: Kappa-carbide (κ) In Fe-mn-al-c Steelsmentioning

confidence: 99%

A general perspective of Fe–Mn–Al–C steels

Zambrano

2018

J Mater Sci

173

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During the last years, the scientific and industrial community have focused on the astonishing properties of Fe-Mn-Al-C steels. These high advanced steels allow high-density reductions about ~18% lighter than conventional steels, high corrosion resistance, high strength (ultimate tensile strength (UTS) ~1 Gpa) and at the same time ductility above 60%.The increase of the tensile or yield strength and the ductility at the same time is almost a special feature of this kind of new steels, which makes them so interesting for many applications such as in the automotive, armor and mining industry. The control of these properties depends on a complex relationship between the chemical composition of the steel, the test temperature, the external loads and the processing parameters of the steel. This review has been conceived to tried to elucidate these complex relations and gather the most important aspects of Fe-Mn-Al-C steels developed so far.

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Section: Kappa-carbide (κ) In Fe-mn-al-c Steelsmentioning

confidence: 99%