Compositional dependence of the Néel transition, structural stability, magnetic properties and electrical resistivity in Fe–Mn–Al–Cr–Si alloys

Zhang, Yan Sheng; Lü, Xing; Tian, Xiaodong; Qin, Zuoxiang

doi:10.1016/s0921-5093(01)01781-6

Cited by 62 publications

(11 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The magnetic transition temperature for the fcc solution in Fe–Mn is composition dependent [3, 8, 18, 23, 45], and can be expressed as where T c ϕ is the magnetic transition temperature of the phase ϕ in a Fe–Mn solution, T c Fe ϕ is the magnetic transition point of the phase ϕ in pure Fe and ex T c Fe, Mn ϕ is the excess temperature term from the interaction between Fe and Mn. Further details can be found in [26].…”

Section: Resultsmentioning

confidence: 99%

A thermo-mechanical correlation with driving forces for hcp martensite and twin formations in the Fe–Mn–C system exhibiting multicomposition sets

Nakano

2013

Science and Technology of Advanced Materials

View full text Add to dashboard Cite

The thermodynamic properties of the Fe–Mn–C system were investigated by using an analytical model constructed by a CALPHAD approach. The stacking fault energy (SFE) of the fcc structure with respect to the hcp phase was always constant at T0, independent of the composition and temperature when other related parameters were assumed to be constant. Experimental limits for the thermal hcp formation and the mechanical (deformation-induced) hcp formation were separated by the SFE at T0. The driving force for the fcc to hcp transition, defined as a dimensionless value –dGm/(RT), was determined in the presence of Fe-rich and Mn-rich composition sets in each phase. Carbon tended to partition to the Mn-rich phase rather than to the Fe-rich phase for the compositions studied. The results obtained revealed a thermo-mechanical correlation with empirical yield strength, maximum true stress and maximum true strain. The proportionality between thermodynamics and mechanical properties is discussed.

show abstract

Section: Resultsmentioning

confidence: 99%

A thermo-mechanical correlation with driving forces for hcp martensite and twin formations in the Fe–Mn–C system exhibiting multicomposition sets

Nakano

2013

Science and Technology of Advanced Materials

View full text Add to dashboard Cite

show abstract

“…Una ventaja de los aceros con base en Fe-Mn-Al, llamados aceros Fermanal, con relación a los aceros convencionales es que tienen menor costo y peso, además de presentar excelentes propiedades mecánicas y buena resistencia a la oxidación [6]. Este tipo de características hace que estos aceros sean aptos para diversas aplicaciones, desde biomédicas hasta en el manejo de sustancias a temperaturas criogénicas [7].…”

Section: Respuestasunclassified

“…Sin embargo, a pesar del desarrollo de tan importantes investigaciones aún no se cuenta con la información suficiente en la literatura que incluya los mecanismos de corrosión y su comportamiento en diferentes medios agresivos de esta serie de aleaciones, mientras que sí se ha probado ampliamente en condiciones de corrosión bajo tensión y oxidación a alta temperatura [2,7].…”

Section: Respuestasunclassified

Resistencia a la corrosión marina en aceros austeníticos tipo fermanal (15,8Mn – 6,45Al –5,56Cr – 0,358C)

2011

View full text Add to dashboard Cite

En vista del enorme potencial que ofrecen las aleaciones Fe-Mn-Al como resistentes a la Corrosión y similares a los aceros inoxidables de la familia Fe-Ni-Cr, se planteó evaluar los procesos corrosivos de la aleación 15,8Mn – 6,45Al –5,56Cr – 0,358C (AF) y un acero inoxidable AISI 316 (AI), sometidos a condiciones de ambiente marino. El comportamiento frente a la corrosión se estudió mediante curvas de polarización Tafel y mediante la técnica de pulso galvanostático, técnicas con las cuales se obtuvieron los valores de densidad de corriente de corrosión de 1,7 y 0,1 μA/cm2 y velocidad de corrosión de 0,54 y 0,04 mpy para los aceros fermanal e inoxidable respectivamente. Para la simulación del ambiente marino se empleó una solución al 3,5%wt. de NaCl en un medio no aireado.Palabras Clave: aleaciones Fe-Mn-Al, corrosión marina, curvas de polarización Tafel, técnica de pulso galvanostático.

show abstract

“…-Although addition of 0.25% carbon to the base alloy decreases the enthalpy of transformation by suppressing FT, subsequent cold rolling up to 5% thickness reduction increases the measured latent heat According to [3], the suppression of transformation in metastable Fe-Mn alloys takes place due to lowering of the Ms temperature by carbon addition. Another important parameter that can affect the martensitic ure of austenite [8] calculated based on the chemical composition using formulae presented in [9,10]. The calculations show that an addition of 1% Mn to the base alloy results in an increase of the Fe-21Mn-0.4C, but not in Fe-18Mn-0.17C alloy.…”

Section: The Phase Composition Of Rolled Materials Determined Using X-mentioning

confidence: 99%

Effect of carbon and cold rolling on the latent heat upon ε → γ transformation in metastable Fe-Mn alloys

Murasov

Duprez

Verlinden

et al. 2009

ESOMAT 2009 - 8th European Symposium on Martensitic Transformations

View full text Add to dashboard Cite

Abstract. Metastable Fe-Mn alloys exhibit a non-thermoelastic martensitic transformation which is accompanied by a significant thermal effect (ca. 20 J/g). Among Fe-Mn alloys, the highest value of latent heat was registered in alloys with 17-18 wt. % Mn. In this work we investigate effects of carbon (up to 0.4 wt. %) and cold rolling (5-25% of thickness reduction) on the latent heat and the temperature hysteresis of the martensitic transformation. Changes in chemical and phase composition are analyzed based on the goal of enthalpy maximizing transitions are registered using differential scanning calorimetry and dilatometry. The phase composition is determined by means of X-ray diffraction. An effect of thermocycling is considered in connection with microstructural and enthalpy changes.

show abstract

Compositional dependence of the Néel transition, structural stability, magnetic properties and electrical resistivity in Fe–Mn–Al–Cr–Si alloys

Cited by 62 publications

References 18 publications

A thermo-mechanical correlation with driving forces for hcp martensite and twin formations in the Fe–Mn–C system exhibiting multicomposition sets

A thermo-mechanical correlation with driving forces for hcp martensite and twin formations in the Fe–Mn–C system exhibiting multicomposition sets

Resistencia a la corrosión marina en aceros austeníticos tipo fermanal (15,8Mn – 6,45Al –5,56Cr – 0,358C)

Effect of carbon and cold rolling on the latent heat upon ε → γ transformation in metastable Fe-Mn alloys

Contact Info

Product

Resources

About