Influence of Phosphorus Micro-Segregation on Ferrite Structure in Cast Strips of 0.1 mass% C Steel
Influence of Phosphorus Micro-Segregation on Ferrite Structure in Cast Strips of 0.1 mass% C Steel
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影响%20of%20磷%20微偏析%20on%20铁素体%20结构%20in%20铸件%20条%20of%200.1%20质量%%20C%20钢
DOI：
10.2320/matertrans.44.1266
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发表时间：
2003
影响因子：
1.2
通讯作者：
K. Nagai
中科院分区：
文献类型：
--
作者：
O. Umezawa;K. Hirata;K. Nagai
用电子背散射衍射仪(EBSP)对含磷和不含磷的0.1质量%C钢铸带进行了表征。讨论了球状铁素体组织的形成。结合光学显微镜的EBSP分析清楚地表明，球状颗粒为非铁素体颗粒。EBSP分析表明，冷却过程中残留晶主要在晶内长大，并形成球状铁素体。球状铁素体组织中的微观织构在很大程度上取决于凝固组织。重要的是将一次枝晶生长方向分散到邻近区域，以获得高磷钢铸带的细小原始组织。(2003年1月29日收到；2003年5月19日接受)
Cast strips of 0.1 mass% C steel with or without phosphorus addition have been characterized by electron back-scattering diffraction pattern (EBSP) measurements. Then the formation of globular ferrite structure was discussed. EBSP analysis combined with optical microscopy clearly showed that a globular grain was fitted to be an -ferrite grain. The EBSP analysis suggested that the retained- grain grew predominantly in the -grain and formed the globular -ferrite during cooling. The microtexture in the globular ferrite structure depended highly on the solidification structure. It is important to scatter the primary dendrite growth direction into neighboring areas to develop fine prior- and structures for the cast strip of high-phosphorus steel. (Received January 29, 2003; Accepted May 19, 2003)