材料工程Issue(12)：89-94,6.DOI:10.11868/j.issn.1001-4381.2015.12.015
取向硅钢表面氧化层的结构及其对渗氮的影响
Structure of Surface Oxide Layer and Effect on Nitriding of Grain-oriented Silicon Steel
摘要
Abstract
The evolution of oxide layer and its influence on nitriding after different decarburization time and holding time in grain-oriented silicon steel was investigated by field emission scanning electron mi-croscopy and energy dispersive spectrometer.The results indicate that oxide layer gets thicker with the decarburization time prolonging and is beneficial to nitriding,accompanying with the process of lamellar silica transform into spherical silica.The three-layer structure of oxide layer is beneficial to nitriding,the main contribution to nitriding comes from lamellar silica,while thicker spherical silica plays certain suppression role in nitriding,the nitriding content of oxide layer with solely spherical sil-ica structure is much less than that of three-layer structure.There are some influences on the mor-phology of nitride after nitriding process.关键词
取向硅钢/脱碳/氧化层/无定形 SiO2/渗氮Key words
grain-oriented silicon steel/decarburization/oxide layer/amorphous silica/nitriding分类
矿业与冶金引用本文复制引用
严国春,何承绪,孟利,马光,吴细毛..取向硅钢表面氧化层的结构及其对渗氮的影响[J].材料工程,2015,(12):89-94,6.基金项目
国家自然科学基金资助项目（51171019）；国家电网公司科技项目资助 （）
