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

详细信息    查看全文

• 作者：Naqiong  ; Zhu^a ; Yanlin  ; He^a ;   ; ^{ylhe@staff.shu.edu.cn} ; Wenqing  ; Liu^a ; Lin  ; Li^a ; Shuigen  ; Huang^b ; Jef  ; Vleugels^b ; Omer  ; Van der Biest^b
• 关键词：Nucleation and growth ; M₂₃C₆ ; Three-dimensional atom probe (3DAP) ; Modeling
• 刊名：Journal of Materials Science & Technology
• 出版年：2011
• 出版时间：August 2011
• 年：2011
• 卷：27
• 期：8
• 页码：725-728
• 全文大小：267 K

文摘

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¡ãC. 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.