| Nb强化铸铁机理的基础研究 |
| |
| 引用本文： | 闫永生,朱洪波,孙小亮,华勤,翟启杰.Nb强化铸铁机理的基础研究[J].现代铸铁,2011(2):24-27. |
| |
| 作者姓名： | 闫永生 朱洪波 孙小亮 华勤 翟启杰 |
| |
| 作者单位： | 上海大学,材料科学与工程学院,上海,200072 |
| |
| 基金项目： | 中信-CBMM铌钢研究与开发基金，上海大学研究生创新基金 |
| |
| 摘 要： | 介绍了Nb在铸铁中的应用现状,对富铌相在铸铁中的存在形式和形成条件进行了热力学分析。通过NbC和铸铁组织中的γ-Fe和石墨的晶格点阵的二维错配度计算,证实了NbC可以成为石墨异质晶核的衬底。提出了进一步研究Nb元素对铸铁作用机理的方向。
|
| 关 键 词： | 铸铁 Nb 富铌相 异质晶核 |
Basic Study on the Mechanism of Niobium Strengthening Cast Iron |
| |
| YAN Yong-sheng,ZHU Hong-bo,SUN Xiao-liang,HUA Qin,ZHAI Qi-jie.Basic Study on the Mechanism of Niobium Strengthening Cast Iron[J].Modern Cast Iron,2011(2):24-27. |
| |
| Authors: | YAN Yong-sheng ZHU Hong-bo SUN Xiao-liang HUA Qin ZHAI Qi-jie |
| |
| Affiliation: | YAN Yong-sheng,ZHU Hong-bo,SUN Xiao-liang,HUA Qin,ZHAI Qi-jie(Materials Science and Engineering College,Shanghai University,Shanghai 200072,China) |
| |
| Abstract: | The present application situation of niobium in cast irons was introduced.The existing morphologies and formation condition of the niobium-rich phase in the cast irons was thermodynamically analyzed.By through calculating the 2-D misfit of the lattices of NbC,as well as γ-Fe and graphite in the cast irons structure,it was verified that NbC could be act as the heterogeneous nucleus substrate of graphite.The further research direction of the effect mechanism of niobium element in the cast irons was proposed. |
| |
| Keywords: | cast iron niobium niobium-rich phase heterogeneous nucleus |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
