退火温度对超低碳烘烤硬化钢织构和固溶元素影响Effect of annealing temperature on texture and solid solution elements in ultra-low carbon bake-hardening steels
阎琦,史文,黄健,王华,李麟
摘要(Abstract):
采用光学显微镜、EBSD测试技术和三维原子探针分别对超低碳烘烤硬化钢的微观组织、织构以及固溶元素进行分析。结果表明,超低碳烘烤硬化钢经过750~810℃退火后,退火组织均为等轴状的铁素体组织,退火织构主要为{111}有利织构。随着退火温度的增加,其晶粒尺寸和{111}织构的强度都不断增大。烘烤硬化钢板经过退火后碳和磷元素在晶界等缺陷处发生了不同程度的偏聚。通过三维原子探针相应的软件计算得出,固溶在钢中的含碳量随着退火温度的增加而增大。
关键词(KeyWords): 超低碳烘烤硬化钢;退火温度;织构;固溶元素
基金项目(Foundation): 国家“973”计划项目(2010CB630802)
作者(Author): 阎琦,史文,黄健,王华,李麟
DOI: 10.13289/j.issn.1009-6264.2011.s1.027
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