黄学启,刘相华,张志敏,刘再旺,李晓林,赵阳

• 1:东北大学轧制技术及连轧自动化重点实验室
• 2:首钢集团有限公司技术研究院
• 3:绿色可循环钢铁流程北京市重点实验室
• 4:东北大学材料科学与工程学院

摘要(Abstract)：

采用扫描电镜及透射电镜对热轧搪瓷钢中的析出物进行了观察,应用固溶度积公式对TiC的析出量进行了计算,并测得了不同卷取温度下搪瓷钢的抗搪瓷鳞爆敏感性(TH)。研究了热轧搪瓷钢中析出物与抗鳞爆性能之间的关系。结果表明,热轧搪瓷钢中的析出物主要为微米级TiN、Ti_4C_2S_2和纳米级TiC,TiN尺寸为1~3μm,Ti_4C_2S_2尺寸为100~400 nm,TiC尺寸为7~15 nm。TiC在1075℃时开始析出,在820℃时析出结束,此时TiC的体积分数为0.2242%。卷取温度600℃搪瓷钢的TH值高于650℃卷取钢板,因为600℃卷取的搪瓷钢的析出物TiC尺寸更细小,可以获得更高的抗鳞爆性能。

关键词(KeyWords)： 热轧搪瓷钢;析出物;TiC;抗鳞爆性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 黄学启,刘相华,张志敏,刘再旺,李晓林,赵阳

DOI: 10.13289/j.issn.1009-6264.2017-0306

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