材料研究学报  2013, Vol. 27 Issue (6): 561-568

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微碳DP钢在连续退火加热段的组织与织构演变*

汪志刚1 赵爱民2 叶洁云1 赵征志2

1. 江西理工大学材料科学与工程学院 赣州 341000 2. 北京科技大学冶金工程研究院 北京 100083

Microstructure and Textural Evolution of Micro-carbon DP Steel during the Heating Stage of Continued Annealing Process

WANG Zhigang1* ZHAO Aimin2 YE Jieyun1 ZHAO Zhengzhi2

1. School of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000 2. Research Institute of Metallurgy Engineering, University of Science and Technology Beijing, Beijing 100083

汪志刚, 赵爱民, 叶洁云, 赵征志. 微碳DP钢在连续退火加热段的组织与织构演变*[J]. 材料研究学报, 2013, 27(6): 561-568.
. Microstructure and Textural Evolution of Micro-carbon DP Steel during the Heating Stage of Continued Annealing Process[J]. Chinese Journal of Materials Research, 2013, 27(6): 561-568.

摘要 相关文章 Metrics 全文: PDF(6737 KB)   摘要: 利用扫描电镜、X射线衍射和电子背散射衍射技术研究了微碳DP钢在连续退火加热段的组织与织构演变。结果表明: 热轧组织为铁素体加退化态珠光体, 冷轧过程中铁素体被拉长并出现一定量的形变带; 再结晶初期(720℃到750℃), 多边形铁素体体积分数约30%, 形变带易诱发{001}~{112}<110>取向晶粒优先形核与长大; 再结晶后期(750℃到780℃), 铁素体完全再结晶, 硬质相逐渐溶解, <111>//ND纤维晶粒逐渐吞噬<110>//RD晶粒而长大。{001}<110>取向密度在再结晶初期和相变阶段剧烈增加, 而相变对<111>//ND织构影响较小。 Abstract： The microstructure and textural evolution of micro-carbon DP steel during the heating stage of continued annealing process was studied using SEM, XRD and EBSD technique. Results show that, the microstructure of hot-rolled plate consisted of ferrite and degraded pearlite. Deformed elongated ferrtite grains and deformed band was observed during cold rolling process. During the initial stage of recrystallization (from 720℃ to 750℃), the volume fraction of polygonal ferrite increased about 30%, and the deformed band easily induced the {001}~{112}<110> oriented grains nucleation and growth priority. During the latter stage of recrystallization (from 750℃to 780℃), ferrite was almost fully recrystallized, <111>//ND fiber grain grew up and gradually swallowed <110>//RD grain. The intensity of {001} <110> orientation significantly increased due to carbide dissolution during high-temperature annealing, and the <111>//ND fiber texture hardly affected by transformation.      ZTFLH:  分类号: TG115.2   基金资助:国家自然科学基金50904006和中央高校基本科研业务费FRTTP10001A资助项目。 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 44.8K 链接本文: https://www.cjmr.org/CN/      或      https://www.cjmr.org/CN/Y2013/V27/I6/561 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed