Correlation between Microstructures and Yield Strength of a High Strength Enameling Steel

作     者：Ming Jiang Xuefeng Yang Shiyan Pan Bruce W.Krakauer Mingfang Zhu 

作者机构：Jiangsu Key Laboratory for Advanced Metallic MaterialsSchool of Materials Science and EngineeringSoutheast UniversityNanjing 211189China AO Smith Corporate Technology CenterMilwaukeeWI53224USA 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2012年第28卷第8期

页      面：737-744页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0813[工学-建筑学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by AO Smith Corporate Technology Center USA 

主　　题：Enameling steel Enamel-fire anneal Microstructure Yield strength Thermodynamic calculation 

摘      要：Numerical estimates of the components of yield strength of a high strength Fe-C-Mn-P-N-Si enameling steel were determined using empirical relationships between microstructure and yield strength. Results are reported for both the hot rolled （HR） and cold rolled （CR） forms before and after simulating an enamel-fire anneal （EFA）. To determine the solubilities of alloying elements, thermodynamic calculations were performed in combination with the considerations of process conditions and the element diffusivities. The results show that the main solid solution strengtheners were the elements Mn, Si, and P, while the elements C and N were nearly completely tied up as precipitates. The yield strength reduction, due to the EFA, resulted primarily from an increase in grain size and a decrease in dislocation density, and the EFA appeared to have a negligible effect on the element solubilities.