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| 渗氮温度对取向硅钢抑制剂状态的影响 |
| Effect of nitriding temperature on the inhibitor state of oriented silicon steel |
| 投稿时间：2018-10-13 |
| DOI： |
| 中文关键词: 高磁感取向硅钢 渗氮 渗氮温度 抑制剂 Si3N4 (Al,Si)N |
| 英文关键词: high magnetic induction grain-oriented silicon steel nitriding nitriding temperature inhibitor Si3N4 (Al,Si)N |
| 基金项目:国家重点研发计划资助项目(2016YFB0300302). |
| 作者 | 单位 | E-mail | | 骆新根 | 国家硅钢工程技术研究中心, 湖北 武汉,430080 | 778377233@qq.com | | 郭小龙 | 国家硅钢工程技术研究中心, 湖北 武汉,430080 | | | 高洋 | 国家硅钢工程技术研究中心, 湖北 武汉,430080 | | | 陈文聪 | 武汉钢铁有限公司硅钢部, 湖北 武汉,430080 | | | 丁哲 | 武汉钢铁有限公司硅钢部, 湖北 武汉,430080 | |
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| 中文摘要: |
| 采用低温高磁感取向硅钢(Hi-B钢),分别于660、770、900 ℃三个温度下进行渗氮试验。借助SEM、EDS、EPMA等技术,对比研究了不同渗氮温度下硅钢中“获得抑制剂”的析出行为及分布情况。结果表明,较低的渗氮温度有利于钢中渗氮量的提高；660、770 ℃下渗氮试样表层的析出相主要为Si3N4,而900 ℃下渗氮试样表层析出相主要为(Al,Si)N。660 ℃下渗氮形成的Si3N4析出相最多,分布于晶内和晶界处,770 ℃下渗氮形成的Si3N4主要分布于晶界处,而900 ℃下形成的Si3N4大部分已经转化为(Al,Si)N。 |
| 英文摘要: |
| The nitriding test was carried out at three temperatures of 660,0 and 900 ℃ by using low-temperature high-magnetic induction grain-oriented silicon steel (Hi-B steel). With the aid of SEM, EDS, EPMA, etc, the precipitation behavior and distribution of the “obtained inhibitors” in silicon steel at different nitriding temperatures were investigated comparatively. The results show that, lower nitriding temperature is beneficial to the increase of nitride content in Hi-B steel. When nitriding at 660 and 770 ℃, the precipitates in the surface layer of the samples are mainly Si3N4; however, the precipitates are detected as (Al, Si)N in the surface layer of the sample when nitriding at 900 ℃. Moreover, the number of Si3N4 phase precipitated in the sample nitrided at 660 ℃ turns out to be the most, distributed mainly in the grain inner or at the grain boundary; when nitriding at 770 ℃, the formed Si3N4 precipitates are mainly distributed at the grain boundary; however, most of Si3N4 formed at the nitriding temperature of 900 ℃ has been transformed into (Al, Si)N. |
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