中文摘要：

研究了含碳量约3.0×10-5的50W700型号冷轧无取向硅钢板织构与磁时效的关系。200℃、24h的时效实验表明,渗碳体的时效析出阻碍磁畴壁的移动,导致试样铁损升高。磁化时180°磁畴畴壁的驱动力与硅钢板织构有密切关系,〈100〉平行于外磁场方向的织构有利于减小磁时效导致的铁损增幅,降低钢板的磁时效效应。

英文摘要：

The relationship between magnetic aging and texture of non-oriented silicon steel 50W 700 with about 3.0×10-5 carbon was investigated.The 24h aging treatment at 200℃ showed that the carbide precipitated in the form of fine cementite particles from supersaturated ferrite during aging and cementite particles precipitated from ferrite during aging inhibited the movement of magnetic domain walls and subsequently increased the core loss of non-oriented silicon steel.The driving force to move the 180° stripe domain walls during magnetization is influenced by the texture of steel sheet.The sheet texture of 〈100〉 parallel to the magnetizing field will reduce coreloss increment induced by the magnetic aging.