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《中国工程科学》 >> 2014年 第16卷 第1期

低碳钛、钒微合金钢中的相间析出

东北大学轧制技术及连轧自动化国家重点实验室,沈阳 110819

资助项目 :国家自然科学基金资助项目(51204048);中央高校基本科研业务费项目(N120407008);辽宁省教育厅一般项目(L2013112) 收稿日期: 2013-10-09 发布日期: 2013-12-23 15:17:17.000

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摘要

针对目前较少关注的Ti-V微合金体系,在Formaster—FII 膨胀仪上进行奥氏体/铁素体两相区等温,在铁素体相变同时获得Ti、V复合相间析出。采用金相、透射电子显微镜对显微组织、尤其是相间析出形貌、及其与铁素体基体的位向关系进行了观察与分析。研究表明,650 ℃为静态等温相变的鼻温点,相间析出呈层状分布,具有平面和曲面两种形貌,相间析出碳化物与铁素体基体之间存在Baker-Nutting 取向关系。

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