冯锐,李胜利,李贞顺,敖青

• 1:山东大学材料液固结构演变与加工教育部重点实验室
• 2:山东大学材料科学与工程学院

摘要(Abstract)：

用SEM和TEM等研究了Nb-V-Ti微合金钢的组织,特别是复合析出相的形貌和形成机制,并探讨了其对力学性能的影响。结果表明:试验用钢的组织为典型的铁素体-珠光体组织,TiN形成于连铸坯冷却过程的较高温度区间,形态经历了由球形向方形的长大过程;复合析出相包含Nb、V、Ti,NbC和VC依附于先析出的TiN表面以共格关系形核长大的,整体呈铆钉形或其它不规则形状,尺寸为50～70nm。

关键词(KeyWords)： 微合金钢;复合析出相;高分辨电子显微像;共格

Abstract:

Keywords:

基金项目(Foundation): 2012年济南市高校自主创新项目(201202073)

作者(Author): 冯锐,李胜利,李贞顺,敖青

DOI: 10.13289/j.issn.1009-6264.2013.02.010

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