High-Alloy Manganese-Aluminum Steels for Cryogenic Applications

Elastic properties of fcc Fe–Mn–X (X=Al, Si) alloys studied by theory and experiment

“…In contrast, addition of Si decreases the SFE and, therefore, sustain martensitic transformation during deformation [6]. Furthermore, strongly dependent on the chemical composition, austenitic Fe-Mn-Al based steels exhibit satisfactory combinations of mechanical strength, fracture toughness and microstructural stability over a wide temperature range, with applications in the chemical and aeronautical industries [7][8][9][10]. Fe-Mn-Si based alloys have received attention due to the so-called shape memory effect [11][12][13], where the martensitic transformation fcc !…”

High-strength Fe–20Mn–Al–C-based Alloys with Low Density

“…Widening the g phase region to the Al-rich side by the addition of Mn and C to Fe-Al alloys is very useful to improve their ductility. It is known that Fe-Mn-Al-C alloys with the g phase are the basic system for austenitic stainless steels without Ni and Cr, [7][8][9][10][11][12][13][14][15][16][17] cryogenic materials [18][19][20][21] and magnetic alloys. 22) Fe-Mn-Al-C-based alloys show high strength and excellent ductility at room temperature.…”

“…22) Fe-Mn-Al-C-based alloys show high strength and excellent ductility at room temperature. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][23][24][25][26][27] In addition, it has been reported that Fe-Mn-Al-C-based alloys also have excellent high-temperature oxidation resistance 28) and that the addition of Cr to Fe-Mn-Al-C alloys is effective for enhancing oxidation resistance. 29) Although there have been extensive studies regarding Fe-Mn-Al-C-based alloys, the degree to which low density can be obtained in Fe-MnAl-C-based alloys while maintaining high strength is not yet clear.…”

Effects of Mn Contents on the Microstructure and Mechanical Properties of the Fe-10Al-xMn-1.0C Alloy

“…are added. [16][17][18][19][20][21][22][23] Based on these studies, being solution heat-treated and then quenched, the microstructure of the Fe-Al-Mn-C alloys were a single γ phase or γ phase containing α phase dispersions. After aging processes, some fine L 1 2 -type κ phase carbide precipitates 8-11, 24, 25) within the γ matrix.…”