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

表1 奥氏体和奥氏体基双相轻质钢的力学性能和相组成[3,7,12,16,23,30,42,87]

Table 1 Mechanical properties and phase constituents of austenite and austenite-based duplex lightweight steels[3,7,12,16,23,30,42,87]

Alloy (mass fraction / %) YS / MPa UTS / MPa TE / % Phase ρ / (g·cm-3) Γ / (mJ·m-2) Ref. Fe-28Mn-9Al-0.8C 440 840 100 γ 6.78 85 [7] Fe-30.4Mn-8Al-1.2C 1020 1125 41 γ + κ - - [87] Fe-20Mn-9Al-0.6C 514 806 46 γ + α 6.84 70 [23] Fe-28Mn-12Al-1.0C 730 1000 ~55 γ + α + κ 6.50 110 [3] Fe-25.7Mn-10.6Al-1.2C 1251 1387 43 γ + α + κ - - [12] Fe-27Mn-12Al-0.8C 812 955 42 γ + δ + κ + B2 + D03 6.53 92 [30] Fe-18Mn-10Al-0.8C 711 979 38 γ + α + κ + B2 + D03 6.88 77.9 [16] Fe-11Mn-10Al-1.25C 1041 1097 29 γ + α + κ - - [42]