Low temperature physical properties of a high Mn austenitic steel JK2LB

Lü, Jun; Walsh, R. P.; Han, Ke

doi:10.1016/j.cryogenics.2008.11.001

Cited by 16 publications

(3 citation statements)

References 10 publications

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“…12,63 The T N represents a magnetic transition temperature between anti-ferromagnetism and para-magnetism. Therefore, Jin et al 106 reviewed empirical equations for estimating the T N of austenitic stainless steels 107,108 and Fe-high Mn austenitic steels 12,109 ; they additionally measured the T N of austenitic Fe-17.9Mn-2.7C-(0, 2.2 and 4.3)Al (at.-%) TWIP steels, suggesting a more accurate predictive equation using 116 measured T N values as follows:…”

Section: Thermodynamics Calculationmentioning

confidence: 99%

Critical assessment 19: Stacking fault energies of austenitic steels

Lee¹,

Lee²,

Han³

2016

Materials Science and Technology

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The stacking fault energy (SFE) can play a key role in the deformation mechanism (e.g. transformation-induced plasticity and twinning-induced plasticity) of austenitic steels. Therefore, tremendous efforts have been devoted to exploring the evaluation methods and controlling parameters (e.g. alloying elements and temperature) that determine the SFE and its relationship to mechanical twinning. We provide here a summary of recent progress in studies of the SFE of austenite and of unsolved issues that may stimulate further investigation.

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Section: Thermodynamics Calculationmentioning

confidence: 99%

Critical assessment 19: Stacking fault energies of austenitic steels

Lee¹,

Lee²,

Han³

2016

Materials Science and Technology

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“…The decrease in M(T) is rationalized in terms of the antiferromagnetism of the untransformed blocky austenite, which overcomes the expected increase due to the presence of α´and thin films. In such blocky austenite, much poorer in C than the thin films [23][24][25][26][27][28][29] the AF order is energetically favored between those Fe atoms of the austenite cell with less C neighbors [72,[75][76][77]. In the present case, the establishment of such AF order is also found to be around T N = −23°C (Néel temperature).…”

Section: Magnetic Behavior Versus γ→α' Transformationmentioning

confidence: 61%

Cryogenic study of the magnetic and thermal stability of retained austenite in nanostructured bainite

Argüelles

Barbés

Espeso

et al. 2019

Science and Technology of Advanced Materials

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First magnetic characterization of a recently developed generation of carbide free bainitic steels, known as Nanobain, has been performed. Stability of its retained austenite at cryogenic temperatures has been studied by means of X-ray diffraction, microscopy, dilatometry and magnetic measurements. Two morphologies for this phase (blocky-type and film-type) appear in a different proportion depending on the chemical composition and the applied thermal treatment. Inhibition of the martensitic transformation, when decreasing the temperature down to −271°C, has been observed in those microstructures with higher proportion of film-type austenite. The paramagnetic state of austenite at room temperature seems to lead to different magnetic behaviors (ferromagnetic, antiferromagnetic) at cryogenic temperatures (T C or T N being around −23°C in all the studied samples), depending on the proportion of such morphological features. Furthermore, irreversibility with temperature on the evolution of such magnetic behaviors has been observed for all the studied bainitic structures and is proposed to be due to a magnetic proximity effect.

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“…The Larbalestier-King equation [5] was developed for Fe-Cr-Ni(-Mo) austenitic alloys and the Jones equation [8] may be considered an improvement because it contains C and N. In general, these equations are satisfactory for AusSSs (refer to [5,35] for the Larbalestier-King equation and [8,36] for the Jones equation. Application of these equations to the AusSSs designated as R011 and R021 in [37] also gives adequate results).…”

Section: Applicability Of the Empirical Formulae For Estimating T Neelmentioning

confidence: 99%

On the cryogenic magnetic transition and martensitic transformation of the austenite phase of 7MoPLUS duplex stainless steel

Lai

2010

Journal of Magnetism and Magnetic Materials

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Low temperature physical properties of a high Mn austenitic steel JK2LB

Cited by 16 publications

References 10 publications

Critical assessment 19: Stacking fault energies of austenitic steels

Critical assessment 19: Stacking fault energies of austenitic steels

Cryogenic study of the magnetic and thermal stability of retained austenite in nanostructured bainite

On the cryogenic magnetic transition and martensitic transformation of the austenite phase of 7MoPLUS duplex stainless steel

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