Impact Energy of Functionally Graded Steels with Crack Divider Configuration  

作　　者：Ali Nazari Jamshid Aghazadeh Mohandesi 

机构地区：[1]Department of Mining and Metallurgical Engineering, Amirkabir University of Technology

出　　处：《Journal of Materials Science & Technology》2009年第6期847-852,共6页材料科学技术（英文版）

摘　　要：Functionally graded steels were produced via electroslag remelting process using the primary electrodes of plain carbon and austenitic stainless steels. Charpy impact energy of as-prepared specimens was measured in the form of crack divider. The obtained results show that the impact energy of the specimens depends on the type and the volume fraction of the present phases. Based on the rule of mixtures, a mathematical model, which correlates the impact energy of functionally graded steels to the impact energy of the individual layers through Vickers microhardness of the layers, was presented. A good compatibility between the experimental results and those obtained from the model was observed.Functionally graded steels were produced via electroslag remelting process using the primary electrodes of plain carbon and austenitic stainless steels. Charpy impact energy of as-prepared specimens was measured in the form of crack divider. The obtained results show that the impact energy of the specimens depends on the type and the volume fraction of the present phases. Based on the rule of mixtures, a mathematical model, which correlates the impact energy of functionally graded steels to the impact energy of the individual layers through Vickers microhardness of the layers, was presented. A good compatibility between the experimental results and those obtained from the model was observed.

关 键 词：Graded steels Impact energy Crack divider Mathematical model 

分 类 号：TG115.56[金属学及工艺—物理冶金]