• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ international >Influence of Oxide Particles and Residual Elements on Microstructure and Toughness in the Heat-Affected Zone of Low-Carbon Steel Deoxidized with Ti and Zr
【24h】

Influence of Oxide Particles and Residual Elements on Microstructure and Toughness in the Heat-Affected Zone of Low-Carbon Steel Deoxidized with Ti and Zr

机译：氧化物颗粒和残留元素对Ti和Zr脱氧的低碳钢热影响区组织和韧性的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The microstructure and toughness in Fe-0.04%C-1.85%Mn-0.03%Si-0.018%Nb steel deoxidized with Ti and Zr have been studied as functions of particle characteristics, austenite grain size and soluble Ti and Zr contents using a simulated HAZ (heat affected zone) thermal cycle (peak temperature, 1 400℃; peak holding time, 60 s; time of cooling from 800 to 500℃, 70 s) and submerged arc welding (heat input of 15 kJ/mm), respectively. Microstructures were studied in samples containing 1.0 to 1.5 μm-diameter oxide particles numbering 500 to 2 000 mm~(-2) and with a soluble oxygen content of 10 to 30 ppm (measured before casting) and soluble Ti and Zr contents of 50-150 ppm. The γgrain size after HAZ thermal cycle in the range between 200 and 600 μm is controlled by pinning and solute drag. Small γgrain size below 300μm was obtained with high soluble Ti and Zr contents of 110-160 ppm, whereas large γgrain size above 300 μm was obtained with low soluble Ti and Zr contents of 60-110 ppm. Two types of microstructures that showed high Charpy absorbed energy (VE(-10℃)= 150-250 J and VE(-50℃)= 50-150 J) were observed independent of γgrain size: One is acicular ferrite and a small amount of grain boundary ferrite (GBF) and ferrite side plate (FSP) and the other is GBF, FSP and granular bainitic ferrite. It was observed that low vE(T) values are attributed to the formation of porosity, large-size particles, carbides (-(-nitrides) and lathe bainitic ferrite.
机译：使用模拟热影响区研究了用Ti和Zr脱氧的Fe-0.04％C-1.85％Mn-0.03％Si-0.018％Nb钢的组织和韧性与颗粒特性，奥氏体晶粒尺寸以及可溶性Ti和Zr含量的关系（热影响区）热循环（峰值温度1400℃；峰值保持时间60 s；从800到500℃的冷却时间70 s）和埋弧焊（热量输入15 kJ / mm）。在样品中研究了微结构，该样品包含直径为1.0到1.5μm的氧化物颗粒，数量为500到2000 mm〜（-2），可溶性氧含量为10到30 ppm（铸造前测量），可溶性Ti和Zr含量为50- 150 ppm。热影响区热循环后的γ晶粒大小在200到600μm之间，通过钉扎和溶质阻力来控制。较高的可溶性Ti和Zr含量为110-160 ppm时，可获得小于300μm的小γ晶粒尺寸；而较低的可溶性Ti和Zr含量为60-110 ppm时，可获得大于300μm的大γ晶粒尺寸。观察到两种具有高夏比吸收能的微结构（VE（-10℃）= 150-250 J和VE（-50℃）= 50-150 J），与γ晶粒尺寸无关：一种是针状铁素体，少量晶界铁素体（GBF）和铁素体侧板（FSP）分别为GBF，FSP和粒状贝氏体铁素体。观察到低的vE（T）值归因于孔隙率，大尺寸颗粒，碳化物（-（氮化物）和车床贝氏体铁素体）的形成。

著录项

  • 来源
    《ISIJ international》 |2011年第7期|p.1151-1162|共12页
  • 作者

    Hideaki SUITO; Andrey Vladimirovich KARASEV; Masahiko HAMADA; Ryo INOUE; Keiji NAKAJIMA;

  • 作者单位

    Professor Emeritus, Tohoku University, Katahira, Aoba-ku, Sendai, Miyagi, 980-8577 Japan;

    Formerly, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Japan. Now at Royal Institute of Technology, Brinellvagen 23, SE-100 44 Stockholm, Sweden;

    Department of Fundamental Technology Corporate Research & Development Laboratories, Sumitomo Metal Industries, Ltd., 1-8, Fuso-cho, Amagasaki, Hyogo, 660-0891 Japan;

    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba-ku, Sendai, Miyagi, 980- 8577 Japan;

    Royal Institute of Technology, Brinellvagen 23, SE-100 44 Stockholm, Sweden;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    titanium; zirconium; deoxidation; austenite grain size; microstructure refinement; haz; acicular ferrite; charpy absorbed energy.;

    机译：钛;锆;脱氧;奥氏体晶粒尺寸;显微组织细化;z针状铁素体夏比吸收能量。;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号