一种低密度钢等温压缩时组织的演化和动态再结晶

孙建, 李景辉, 黄贞益, 章小峰, 王东生, 刘述庆

Microstructure Evolution and Dynamic Recrystallization of a Low Density Steel during Isothermal Compression

SUN Jian, LI Jinghui, HUANG Zhenyi, ZHANG Xiaofeng, WANG Dongsheng, LIU Shuqing

表2 低密度钢的相组成、材料常数(n，α)和热变形激活能

Table 2 Data for phase composition, material constants (n, α), and activation energy of hot deformation for low density steels

Alloy	T / ^oC	$\dot{ε}$ / s^-1	Phase	n	α / mm^-2·N^-1	Q / kJ·mol^-1	References
Fe-27Mn-11.5Al-0.95C	900~1150	0.01~10	γ + δ	3.93	0.0035	294.20	[11]
Fe-27.34Mn-8.63Al-1.03C	900~1150	0.01~5	γ	4.24	0.0107	422.88	[25]
Fe-25.14Mn-10Al-1.46C	900~1150	0.01~10	γ	5.14	0.0060	669.84	[34]
Fe-29.96Mn-9.56Al-1.01C	850~1100	0.01~10	γ	4.01~6.63	0.0041~0.0054	331.76~415.30	Present work