Impact Energy of Functionally Graded Steels with Crack Divider Configuration

J Mater Sci Technol ›› 2009, Vol. 25 ›› Issue (06): 847-852.

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Impact Energy of Functionally Graded Steels with Crack Divider Configuration

Ali Nazari, Jamshid Aghazadeh Mohandesi

Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, 424, Hafez Avenue, Tehran, Iran

Received:2008-11-18 Revised:2009-06-09 Online:2009-11-28 Published:2009-11-24
Contact: Ali Nazari

Abstract

Abstract:

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.

Key words: graded steels, impact resistance, crack divider, mathematical model

Ali Nazari,Jamshid Aghazadeh Mohandesi. Impact Energy of Functionally Graded Steels with Crack Divider Configuration[J]. J Mater Sci Technol, 2009, 25(06): 847-852.

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Impact Energy of Functionally Graded Steels with Crack Divider Configuration

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