A study on the hot workability of a novel TNM-RE alloy (RE = Y, La, Ce)

Abstract The hot deformation behavior of a novel TNM-RE alloy (RE = Y, La, Ce) was studied using simulation machine (Gleeble-3800), and microstructural evolution also characterized. Finally, 3D forging carried out on isothermal equipment. It is shown that the as-cast lamellar colony size about 20 ∼ 30 μ m, which refined by formation rare Earth oxides borides at grain boundaries inhibiting growth. peak stress deformed 1200 °C/0.01 s −1 97 MPa, governed B2 phase. Based microstructure observation, it found bent elongated to coordinate plastic deformation, where dynamic recrystallization nucleates preferentially, full obtained 1220 . forged method, fine grains with 10 m were controlling process parameters. shows an excellent workability.