摘要
利用带有能谱分析仪的扫描电子显微镜对Fe-Ni42合金带材表面鳞皮缺陷的特征及成因进行了分析，并探讨了带材表面鳞皮的形成机制。研究结果表明，Fe-Ni42合金含有铝硅酸盐和氧化物复合夹杂，夹杂物易诱发显微裂纹的产生。在冷加工应力作用下使裂纹扩展，形成鳞皮状缺陷。通过控制非金属夹杂物大小和数量是减少合金钢带表面鳞皮的关键。
The characteristics and cause of roll scales on Fe-Ni42 strip＇s surface are analyzed by means of scanning electron microscope with spectrometer in this paper, and the mechanism of forming roll scales is discussed in detail. The research results show that Fe-Ni42 alloy contains compound inclusions of calcium-aluminum silicate and oxide, and the inclusions lead to the appearance of microscopic cracks easily. Microscopic cracks develop and grow under the cold working stress, and finally form the roll scales. Therefore to control non-metallic inclusions＇ size and amount is the key of decrease roll scales.
出处
《金属材料研究》
2007年第1期20-23,共4页
Research on Metallic Materials
