摘要
用场发射扫描电子显微镜观察了取向电工钢在0-68%冷压加工过程中主要组成为碳化物的第二相粒子的分布状态,统计了不同尺寸粒子面密度的变化。结果表明,冷变形过程造成了碳化物粒子的碎化和回溶行为。粒子碎化到一定程度后其回溶可能是热力学自发过程。这种碎化和回溶有利于促进二次再结晶过程的顺利进行和锋锐Goss织构的生成,也有利于促进一次冷轧板的脱碳过程.
The distribution of second phase particles with carbide as main particles in conventional grain-oriented electrical steels during cold deformation processes was observed by field emission scanning electron microscopy, while the areal density of particles of different sizes were statistically determined. The results show that cold deformation lead in the crushing and dissolving of carbide particles. The dissolution of carbides particles is a spontaneous process when the size of particles are too small. The increase of small size carbide particles and dissolving during cold rolling process is helpful for secondary recrystallization and the forming of sharp Goss texture, it can also accelerate decarburizing procedure after first-time cold roll and advance the development of producing grain-oriented electrical steels with low temperature hot rolling method.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2012年第4期344-348,共5页
Chinese Journal of Materials Research
基金
国家自然科学基金51171019
北京科技大学冶金工程研究院基础理论研究基金YJ2010-005资助项目~~
关键词
金属材料
取向电工钢
第二相粒子
碳化物
回溶
metallic materials, grain-oriented electrical steel, second-phase particles, carbide, dis-solution
