2017
DOI: 10.1016/j.msea.2016.12.074
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Coarsening process and precipitation hardening in Fe 2 AlV-strengthened ferritic Fe 76 Al 12 V 12 alloy

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Cited by 17 publications
(11 citation statements)
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“…It can also react with nitrogen at temperatures above 800 °C [25]. The tendency for segregation can be related to the relatively high APB energy of Fe2VAl is 0.27 ± 0.04 J/m² for a ( 2) ⟨111⟩(011) APB [26], compared to e.g. 0.08 ± 0.025 J/m² for Fe3Al [27].…”
mentioning
confidence: 99%
“…It can also react with nitrogen at temperatures above 800 °C [25]. The tendency for segregation can be related to the relatively high APB energy of Fe2VAl is 0.27 ± 0.04 J/m² for a ( 2) ⟨111⟩(011) APB [26], compared to e.g. 0.08 ± 0.025 J/m² for Fe3Al [27].…”
mentioning
confidence: 99%
“…The bars were rolled up to 2.8 mm thickness in five steps with an incremental true strain of ε = 26, 33, 40, 47 and 52 %. Rolled samples of the Fe 78 Al 10 V 12 alloy were aged under vacuum at 700 • C for 0.37 h (peak hardening condition, PHC [11]), 5 h and 72 h (over-aged conditions). Samples with an additional grain growth (GG) isothermal treatment at 1100 • C/2 h and further PHC ageing were performed.…”
Section: Methodsmentioning
confidence: 99%
“…Among others, ferritic iron-aluminide alloys with strengthening intermetallic phases have been identified as promising candidates [4,5]. In particular, the strengthening of a ductile ferritic matrix by coherent intermetallic precipitation have been explored in many Fe-Al-base ternary systems [6][7][8][9][10][11], showing advantageous mechanical properties over conventional ferritic steels, mainly regarding high-temperature strength and creep resistance.…”
Section: Introductionmentioning
confidence: 99%
“…La composición química medida en las aleaciones se presenta en la Tabla 1. Para observar los posibles cambios en la morfología de la precipitación L2 1 con la sustitución de pequeños porcentajes de V por Ti, se seleccionó de nuestro trabajo previo [21] el tratamiento térmico de envejecimiento que produce el máximo endurecimiento en la aleación ternaria sin Ti. El envejecimiento seleccionado se realiza a 700 ºC por 1320 s con un previo estadio en un campo monofásico de alta temperatura donde se disuelve la fase L2 1 , de esta forma el resultado obtenido debe ser una precipitación L2 1 de diámetro promedio 22 nm en una matriz A2.…”
Section: Microestructura Y Transformaciones De Faseunclassified
“…En trabajos previos y con el fin de resolver estas deficiencias, investigamos aleaciones ferríticas de Fe-Al-V con precipitación coherente de la fase L2 1 (Fe 2 AlV) sobre una matriz A2 [19,20]. Entre las posibles aleaciones, por presentar precipitados L2 1 de morfología esférica y sin efecto de coalescencia en alta temperatura, seleccionamos la superaleación 76Fe-12Al-12V [20,21]. Buscamos ahora un cuarto aleante capaz de incrementar la temperatura de coexistencia del campo de dos fases A2+L2 1 y en consecuencia la máxima temperatura de aplicación.…”
Section: Introductionunclassified