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V-Ti-N微合金钢中V-Ti复合析出物的特征

唐国翌 , 郑炀曾 , 蔡其巩 , 朱静

金属学报

本文研究了V-Ti-N微合金钢中V-Ti复合颗粒的特征和形成过程。结果表明,V-Ti复合颗粒中的钒,是在钢液浇注后冷却到1150℃以下,VN在TiN表面以外延析出的方式生长的。钢液浇注后的冷却条件对颗粒中钒含量有明显影响。

关键词: 微合金钢 , miscible precipitate , microanalysis

MISCIBLE PRECIPITATES IN V-Ti-N MICROALLOYED STEELS

TANG Guoyi ZHENG Yangzeng Yanshan University , Qinhuangdao , ChinaCAI Qigong ZHU Jing Central Iron and Steel Research Institute , Beijing , China ZHENG Yangzeng Professor , Department of Material Engineering , Yanshan University , Qinhuangdao , China

金属学报(英文版)

The characteristics and the formation of the miscible particles in V-Ti-N microalloyed steels were studied.It was found that the vanadium to form V-Ti miscible particles starts to precipi- tate after pouring and cooling to temperature below 11 50℃ by means of the epitaxial precipi- tation on the pre-existing titanium nitrides.The vanadium content in the particles is markedly influenced by the cooling rate after solidification.

关键词: microalloyed steel , null , null

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