重庆大学学报2025，Vol.48Issue(12)：12-19,8.DOI:10.11835/j.issn.1000.582X.2025.12.002
钢铁材料中带状组织的形成机理及影响因素研究
Study on the formation mechanism and influencing factors of banded structures in steel materials
摘要
Abstract
The formation mechanism and influencing factors of banded structures in steel materials are investigated through homogenization treatment tests and slow cooling experiments,combined with optical microscopy and electron probe micro-analyzer.The results indicate that banded structures primarily form within the temperature range of the two-phase region,and their banding characteristics become more pronounced with decreasing cooling temperatures.Homogenization treatment effectively reduces the segregation of Mn elements,thereby inhibiting the formation of banded structures.Specifically,under a slow cooling rate of 0.05℃/s,short-term homogenization treatment(1 h)weakens the banding characteristics,while long-term homogenization treatment(≥2 h)completely eliminates the banded structures.However,after slow cooling at a rate of 0.02℃/s,banded structures still appear in samples even after long-term homogenization treatment(≥2 h).In conclusion,the combined effects of cooling rate and homogenization treatment significantly influence the formation of banded structures in steel materials.关键词
带状组织/两相区/均匀化/元素偏析/冷却速率Key words
banded structure/two-phase region/homogenization/elemental segregation/cooling rate分类
矿业与冶金引用本文复制引用
HONG Xiaowan,WANG Wurong,LUO Wei,WANG Wenya,ZHANG Suoquan..钢铁材料中带状组织的形成机理及影响因素研究[J].重庆大学学报,2025,48(12):12-19,8.基金项目
国家自然科学基金(42276214) （42276214）
宝钢股份基础研究项目(F23YYJC06Z). Supported by National Natural Science Foundation of China(42276214),and the Fundamental Research Project of Baoshan Iron&Steel Co.,Ltd.,China(F23YYJC06Z). （F23YYJC06Z）
