Effects of C Content on Microstructure and Properties ofFe-Mn-Al-C Low-Density Steels
Xingpin CHEN1(),Wenjia LI1,Ping REN1,Wenquan CAO2,Qing LIU1

图4. 不同C含量实验用钢的拉伸曲线及力学性能

Fig.4. Tensile test results of the experimental steels with different C contents (a) engineering stress-strain curves (b) true stress-strain (σ-ε) curves and the corres-ponding strain hardening rate (dσ/dε-ε) curves (c) mechanical properties of the four steels