首页> 外文会议>THERMEC 2011 >Microstructure and Texture Evolution of Fe-Si Steels After Hot Dipping and Diffusion Annealing
【24h】

Microstructure and Texture Evolution of Fe-Si Steels After Hot Dipping and Diffusion Annealing

机译:铁硅钢热浸扩散扩散后的组织和织构演变

获取原文
获取原文并翻译 | 示例

摘要

A homogenous intensity distribution along the cube texture fibre is important to achieve an easy magnetization in non-oriented electrical steels. Several alternatives have been discussed in literature to achieve this goal namely, tertiary recrystallization (surface energy controlled), decarburization annealing, two step cold rolling (strain induced boundary migration), twin-roll thin strip casting (directional solidification), phase transformation (surface energy anisotropy) and columnar grains formation (selective grain growth). In the present study, a hypoeutectic Al-Si alloy was deposited on the surface of cold rolled Fe-Si steels with a hot dipping simulator and subsequently annealed at 1000℃ for different times. This procedure was developed previously in order to enrich the substrate with Al and/or Si and consequently improve their resistivity. Of specific interest was the formation of columnar grains in the low Fe-Si steel after annealing. These columnar grains were found to grow from the surface towards the centre of the substrate. The microstructure and texture in the columnar grains were significantly different than those in the middle of the material. Therefore, the evolution of these features during processing was studied in detail in this work.
机译:沿立方纹理纤维的均匀强度分布对于在非定向电工钢中实现容易的磁化很重要。文献中已经讨论了几种替代方法来实现该目标,即三次重结晶(控制表面能),脱碳退火,两步冷轧(应变引起的边界迁移),双辊薄带钢连铸(定向凝固),相变(表面)。能量各向异性)和柱状晶粒形成(选择性晶粒生长)。在本研究中,通过热浸模拟器将亚共晶Al-Si合金沉积在冷轧Fe-Si钢的表面上,然后在1000℃退火不同的时间。先前已经开发了该程序,以使基板富含Al和/或Si,从而提高其电阻率。特别引起关注的是退火后在低铁硅钢中形成柱状晶粒。发现这些柱状晶粒从表面向基材的中心生长。柱状晶粒的微观结构和织构与材料中间的显着不同。因此,在这项工作中详细研究了这些特征在加工过程中的演变。

著录项

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