Modeling of Nucleation and Growth of M23C6 Carbide in Multi-component Fe-based Alloy

• 来源期刊: 材料科学技术学报：英文版
• 学科: 工学
• 关键词: M23C6 碳化物 多组分 Fe基合金 生长 三维图像显示 成核 建模
• 年，卷（期）: 2011,（8）
• 页码范围: 725-728
• 页数: 4页
• 分类号: TG142.73|TG142.45
• 语种: 英文

摘要

Three-dimensional atom probe （3DAP） technique has been used to study the nucleation and growth of M23C6 carbide in a supersaturated multi-component Fe-based alloy aged at 800℃. 3D images indicate that the radius of M23C6 carbide after ageing for 10 min is about 9 nm. Concentration profiles of alloy elements in the carbide are also obtained. Combined with PANDAT and Thermo-Calc software, attempts to model the early stages of precipitation are present. The calculated particle size and composition of M23C6 carbide is in good agreement with 3DAP data.