肖飞等：S1含量对高硅电工钢热变形与动态再结晶行为的影响 ·335· 250 b 200 750℃ 750℃ 200 L50 150 850℃ 950℃ 50 850℃ 950℃ 50 1050℃ 1050℃ 0 0.102 0.30.4 05 0.60.7 0.10.2 0.30.40.50.60.7 真应变 真应变 00 350 300 750℃ 250 850℃ 150) 100 950℃ 50 1050℃ 00 0.10.20.30.40.50.60.7 真应变 图3F6.5%Si高硅电工钢真应力-真应变曲线.(a)=0.01s1:(b)=0.1sl:(c)8=1s1 Fig.3 True stre strain curves of Fe6.5%Si high-silicon electrical steel:(a)=0.01s-1;(b)=0.1s-;(c)=1s- 200 240 (b) 180 a) 量一5.5%Si 量-5.5%5i 160 一6.0%Si 210 ●-6.0%S 6.5%Si 6.5%Si 140 180 150 120 80 4 60 20 75080085090095010001050 0 750800 85090095010001050 T7℃ T 350 量一5.5%Si 300 6.0%$i ▲6.5%Si 250 200 6150 100 50 0 75080085090095010001050 T℃ 图4高硅电工钢峰值应力σr随Si质量分数及变形温度T的变化趋势图.(a)=0.01s:(b)&=0.1sl:(c)=1s1 Fig.4 Variation of peak stress with Si content and deformation temperature T in high-silicon electrical steel:(a)=0.01s:(b)=0.1s; (c)=1s-1肖 飞等: Si 含量对高硅电工钢热变形与动态再结晶行为的影响 图 3 Fe-6. 5% Si 高硅电工钢真应力--真应变曲线． ( a) ε · = 0. 01 s － 1 ; ( b) ε · = 0. 1 s － 1 ; ( c) ε · = 1 s － 1 Fig． 3 True stress--true strain curves of Fe-6. 5% Si high-silicon electrical steel: ( a) ε · = 0. 01 s － 1 ; ( b) ε · = 0. 1 s － 1 ; ( c) ε · = 1 s － 1 图 4 高硅电工钢峰值应力 σP随 Si 质量分数及变形温度 T 的变化趋势图． ( a) ε · = 0. 01 s － 1 ; ( b) ε · = 0. 1 s － 1 ; ( c) ε · = 1 s － 1 Fig． 4 Variation of peak stress with Si content and deformation temperature T in high-silicon electrical steel: ( a) ε · = 0. 01 s － 1 ; ( b) ε · = 0. 1 s － 1 ; ( c) ε · = 1 s － 1 · 533 ·