将以MnS为主要抑制剂的普通取向电工钢作为实验材料,检测并分析脱碳样品的宏观织构及脱碳和随后加热至925℃时样品的微观织构,统计分析了Goss与周围晶粒的取向差分布.根据取向差原理计算了脱碳样品主要织构组分内各取向晶粒的取向差环境.结果表明,取向电工钢脱碳退火后Goss晶粒与周围晶粒的取向差分布呈现大角度特征,主要取向差分布范围为30°-45°,而非Goss晶粒与周围晶粒的取向差分布则呈现更多小角度特征.二次再结晶后,Goss晶粒与周围晶粒的取向差分布仍然以大角度特征为主.
Macro-texture of decarburized specimens of conventional grain oriented electrical steels with MnS particles as inhibitors was determined by XRD technology. The microscopic texture and misorientation distribution between Goss grains and the other surrounding grains were analyzed after the decarburized specimens were heated up to 925 ℃. The misorientation environment for different oriented grains of primary texture in the decarburized specimen was calculated based on the misorientation principles. Both experimental observations and theoretical calculations indicated the high angle characteristics of the misorientation between Goss grains and the surrounding grains, especially in the angle range of 30°to 45°. However, low angle misorientation was more emphasized arround non-Goss grains. Goss grains are still mainly surrounded by high angle gain boundaries after secondary recrystallization.
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