多晶形变总是不均匀的,不同取向晶粒内激活的滑移系数目不同,微观组织也有差异.这种差异对随后的动(静)态再结晶或相变有不同的影响.本文利用取向成像确定了低碳钢单向压缩条件下浸蚀后在光学镜和扫描电镜下观察到的铁素体晶粒灰度与取向的关系.测出了压缩形变后的主要织构〈111〉和〈100〉取向晶粒内形变不均匀性的差异.同时讨论了形变造成被压碎的珠光体团周围铁素体亚晶转动较快、进而促进动态再结晶的现象.
参考文献
| [1] | M.R. HICKSON;P.J. HURLEY;R.K. GIBBS .The Production of Ultrafine Ferrite in Low-Carbon Steel by Strain-Induced Transformation[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2002(4):1019-1026. |
| [2] | Sun ZQ.;Yang WY.;Qi JJ.;Hu AM. .Deformation enhanced transformation and dynamic recrystallization of ferrite in a low carbon steel during multipass hot deformation[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):201-206. |
| [3] | Hong SC.;Lee KS. .Influence of deformation induced ferrite transformation on grain refinement of dual phase steel[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):148-159. |
| [4] | WANG R Z;LEI T C .Dynamic recrystallization of ferrite inAlow carbon steel during hot rolling in the(F + A) two-phase range[J].Scripta Metallurgica et Materialia,1994,31:1193-1196. |
| [5] | 李龙飞,杨王,孙祖庆,王青峰.低碳钢铁素体相区变形特性[J].北京科技大学学报,2001(03):225-229. |
| [6] | GREWEN J .Influence of deformation microstructure on annealing textures of cubic metals and alloys[J].Zeitschrift fur Metallkunde,1984,75:657-666. |
| [7] | INAGAKI H .Fundamental aspect of texture formation in low carbon steel[J].ISIJ International,1994,34:313-321. |
| [8] | Yasunobu NAGATAKI;Yoshihiro HOSOYA .Origin of the Recrystallization Texture Formation in an Interstitial Free Steel[J].ISIJ International,1996(4):451-460. |
| [9] | BARNETT M R;JONASJJ .Influence of ferrite rolling temperature on grain size and texture in annealed low C and IF steels[J].ISIJ International,1997,37:706. |
| [10] | ILLGEN L;RINGPFEIL H;HEMSCHIK H .The quantitative evaluation of etch pits in the cubic crystal system.Part Ⅰ[J].Practical metallography,1969,6:363-373. |
| [11] | ILLGEN L;RINGPFEIL H;HEMSCHIK H .The quantitative evaluation of etch pits in the cubic crystal system.Part Ⅱ[J].Practical metallography,1969,6:420-443. |
| [12] | 杨平,傅云义,崔凤娥,孙祖庆.Q235碳素钢应变强化相变过程中铁素体晶粒取向分析[J].金属学报,2001(09):900-906. |
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