连续原位退火后Hi-B钢的初次再结晶组织及织构演变
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摘要
对3%Si(质量分数)高磁感取向硅钢冷轧板进行原位循环初次再结晶退火试验。并运用电子背散射衍射(EBSD)技术对退火后样品的组织和结构进行原位分析。结果表明,随着退火温度的升高,初次再结晶阶段单个晶粒长大过程取向变化较小,织构体积的变化主要是不同织构晶粒之间相互吞噬。随着退火温度的升高,Goss织构没有取向优势,{111}<112>织构含量下降,{114}<418>和{111}<110>织构含量先下降后升高,原因与其晶粒周围晶界取向差变化相关。循环退火温度越高,对晶粒生长的影响越大,且随着温度的升高,高能晶界和大角度晶界含量减少。
An in-situ cyclic annealing was performed in 3% Si( mass fraction) Hi-B steels during primary recrystallization process,and the microstructure and texture evolution were analyzed by EBSD technique. The results indicated that the orientation of individual grain changed slightly during primary recrystallization process with the increase of annealing temperature,the phagocytosis between the different texture grains contributed to the change of texture volume. The intensity of Goss texture had no preferred orientation,the{111} < 112 > texture weakened,and the { 114} < 418 > texture and {111} < 110 > texture reduced firstly and then increased,which were related to the change of grain boundary orientation distribution. In the cyclic annealing,a higher the annealing temperature had a greater effect on the grain growth. Also,as the annealing temperature increased,the content of high energy grain boundary and large angle grain boundary decreased.
An in-situ cyclic annealing was performed in 3% Si( mass fraction) Hi-B steels during primary recrystallization process,and the microstructure and texture evolution were analyzed by EBSD technique. The results indicated that the orientation of individual grain changed slightly during primary recrystallization process with the increase of annealing temperature,the phagocytosis between the different texture grains contributed to the change of texture volume. The intensity of Goss texture had no preferred orientation,the{111} < 112 > texture weakened,and the { 114} < 418 > texture and {111} < 110 > texture reduced firstly and then increased,which were related to the change of grain boundary orientation distribution. In the cyclic annealing,a higher the annealing temperature had a greater effect on the grain growth. Also,as the annealing temperature increased,the content of high energy grain boundary and large angle grain boundary decreased.
引文
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[15]仇圣桃,项利,岳尔斌,等.薄板坯连铸连轧流程生产取向硅钢技术分析[J].钢铁,2008,43(9):1-7.
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[17] IBE G, LCKE K. Orientierungszusammenhnge bei der rekristallisation von einkristallen einer eisen-silizium-legierung mit 3%Si[J]. Steel Research International,1968,39(9):693-703.
[2]仇圣桃,付兵,项利,等.高磁感取向硅钢生产技术与工艺的研发进展及趋势[J].钢铁,2013,48(3):1-8.
[3]孙强,李志超,米振莉,等. CGO硅钢初次再结晶组织及织构演变规律[J].材料工程,2016,44(9):38-43.
[4]PARK J Y,HAN K S,WOO J S,et al. Influence of primary annealing condition on texture development in grain oriented electrical steels[J]. Acta Materialia,2002,50(7):1825-1834.
[5]兰兰,任慧平,金自力,等.取向硅钢初次再结晶退火工艺正交试验[J].金属热处理,2013,38(2):83-86.
[6]何忠治,赵宇,罗海文.电工钢[M].北京:冶金工业出版社,2012.
[7]朱业超,毛炯辉,王若平,等.析出相质点对取向硅钢二次再结晶的影响[J].金属热处理,2009,34(6):29-32.
[8] LIN P,PALUMBO G,HARASE J,et al. Coincidence site lattice(CSL)grain boundaries and Goss texture development in Fe-3%Si alloy[J]. Acta Materialia,1996,44(12):4677-4683.
[9]HINZ D C,SZPUNAR J A. Modeling the effect of coincidence site lattice boundaries on grain growth textures[J]. Physical Review B Condensed Matter,1995,52(14):9900-9909.
[10] XIA Z S,KANG Y L,WANG Q L. Developments in the production of grain-oriented electrical steel[J]. Journal of Magnetism&Magnetic Materials,2008,320(23):3229-3233.
[11]HARASE J,SHIMIZU R. Influence of cold rolling reduction on the grain boundary character distribution and secondary recrystallization in nitrided Fe 3%Si alloy[J]. Journal of Magnetism&Magnetic Materials,2000,215(1):89-91.
[12]USHIGAMIY,SUGA Y,TAKAHASHI N,et al. Dynamic study of secondary recrystallization of 3%Si-Fe by synchrotron xradiation topography[J]. Journal of Materials Engineering,1991,13(2):113-118.
[13] HUTCHINSON W B. Origin of Goss texture during secondary recrystallisation in silicon-steel[J]. Materials Science Forum,2012,715-716:73-80.
[14]CITRAWATI F,QUADIR M Z,MUNROE P R. Investigation on the early stages of growth of secondary grains in a grain oriented silicon steel[J]. Procedia Engineering,2017,184:750-755.
[15]仇圣桃,项利,岳尔斌,等.薄板坯连铸连轧流程生产取向硅钢技术分析[J].钢铁,2008,43(9):1-7.
[16] HAYAKAWA Y,KUROSAWA M. Orientation relationship between primary and secondary recrystallized texture in electrical steel[J]. Acta Materialia,2002,50(18):4527-4534.
[17] IBE G, LCKE K. Orientierungszusammenhnge bei der rekristallisation von einkristallen einer eisen-silizium-legierung mit 3%Si[J]. Steel Research International,1968,39(9):693-703.