析出强化Fe53Mn15Ni15Cr10Al4Ti2C1 高熵合金强韧化机制

析出强化Fe₅₃Mn₁₅Ni₁₅Cr₁₀Al₄Ti₂C₁ 高熵合金强韧化机制

孙士杰, 田艳中, 张哲峰

Strengthening and Toughening Mechanisms of Precipitation- Hardened Fe₅₃Mn₁₅Ni₁₅Cr₁₀Al₄Ti₂C₁ High-Entropy Alloy

SUN Shijie, TIAN Yanzhong, ZHANG Zhefeng

图8 经873 K、50 h热处理的Fe₅₃Mn₁₅Ni₁₅Cr₁₀Al₄Ti₂C₁高熵合金的TEM分析

Fig.8 TEM analyses of the Fe₅₃Mn₁₅Ni₁₅Cr₁₀Al₄Ti₂C₁ HEA annealing at 873 K for 50 h
(a) bright field TEM image showing the deformation twin and short-rod precipitate; inset showing the corresponding SAED pattern along z = [110] zone-axis (Arrow in the inset indicates the diffraction spot of Ll₂ precipitate)
(b) bright field TEM image showing the spherical precipitate
(c) dark field TEM image showing the spherical precipitate
(d) HRTEM image showing the precipitate and matrix, with their fast Fourier transform (FFT) patterns on the right-hand side