奥氏体基Fe-Mn-Al-C轻质钢的研究进展

丁桦, 张宇, 蔡明晖, 唐正友

Research Progress and Prospects of Austenite-Based Fe-Mn-Al-C Lightweight Steels

DING Hua, ZHANG Yu, CAI Minghui, TANG Zhengyou

图4 多成分复相钢(CCS)的变形组织(应变为1.5%)[62]

Fig.4 Deformed microstructures of the compositionally complex steel (CCS) at 1.5% strain[62] (a) LAADF-STEM image showing the dislocations (in bright contrast) (b, c) zoom-in image of the marked region in Fig.5a (b), dislocations are highlighted by the blue arrows, austenite (γ) matrix and κ-cabide are identified by fast Fourier transform (FFT) patterns, and B2 phase is detected by EDS maps (c). Dislocations cut through γ matrix and κ-carbide, whereas the bypassing mechanism is shown for the B2 phase