| F12耐热钢服役过程中碳化物演变与蠕变空洞的形成 |
| |
| 引用本文： | 陆传镇,胡正飞,赵俊韦,袁超.F12耐热钢服役过程中碳化物演变与蠕变空洞的形成[J].金属热处理,2011,36(3). |
| |
| 作者姓名： | 陆传镇 胡正飞 赵俊韦 袁超 |
| |
| 作者单位： | 1. 同济大学,材料科学与工程学院,上海市金属功能材料开发应用重点实验室,上海,200092
2. 同济大学,材料科学与工程学院,上海市金属功能材料开发应用重点实验室,上海,200092;上海材料研究所,上海市工程材料应用评价重点实验室,上海,200437 |
| |
| 基金项目： | 国家自然科学基金项目(50871076) |
| |
| 摘 要： | 以超期服役的F12马氏体耐热钢炉管作为研究对象,利用TEM、SEM、EDS等手段研究F12耐热钢组织结构在高温服役过程中发生的变化。通过研究材料的显微结构发现,服役过程中F12耐热钢中的马氏体组织发生明显的分解。晶界处的碳化物M23C6严重粗化,碳化物的化学成分变化明显,Cr含量的变化最为显著。而强化相MX相大量回溶,仅有少量残存于晶内。蠕变空洞形成于晶界粗化的碳化物处,和粗化的碳化物与基体出现明显脱离相关。
|
| 关 键 词： | F12马氏体耐热钢 合金碳化物 分解 蠕变空洞 |
Carbide evolution and formation of creep voids in F12 heat resistance steel after extended long-term service |
| |
| LU Chuan-zhen,HU Zheng-fei,ZHAO Jun-wei,YUAN Chao.Carbide evolution and formation of creep voids in F12 heat resistance steel after extended long-term service[J].Heat Treatment of Metals,2011,36(3). |
| |
| Authors: | LU Chuan-zhen HU Zheng-fei ZHAO Jun-wei YUAN Chao |
| |
| Affiliation: | LU Chuan-zhen1,HU Zheng-fei1,2,ZHAO Jun-wei1,YUAN Chao1(1.School of Materials Science and Engineering,Tongji University,Shanghai Key Laboratory for R & D and Application of Metallic Functional Materials,Shanghai 200092,China,2.Shanghai Research Institute of Materials,Shanghai Key Laboratory for Engineering Materials Application Evaluation,Shanghai 200437,China) |
| |
| Abstract: | The microstructure evolution of F12 heat resistance steel furnace tube with extended service at high temperature was studied by TEM,SEM and EDS methods.The results show that the disintegration of martensite is serious.The M23C6 on the grain boundary coarsens seriously and their chemical composition also changes significantly,especially for the content of Cr.Most of MX strengthening phase is redissolved during the service time,with only a little left within the grain.Creep void forms on the grain boundary,wh... |
| |
| Keywords: | F12 heat resistance alloy carbide M23C6 phase disintegration creep void |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
