The Structural Dynamics of Nitrided Ferritic 439 Grade Stainless Steel Plates

• Main Author: Mohamad Lawi, Muhammad Fawwaz
• Format: Final Year Project
• Language: English
• Published: Universiti Teknologi Petronas 2014
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://utpedia.utp.edu.my/13705/1/FYP2%20Dissertation%20-%20MUHAMMAD%20FAWWAZ%20-%2013221.pdf; http://utpedia.utp.edu.my/13705/

439 Stainless steel is widely known around the world for its anti-corrosive characteristics. Because of its abundance and cost effectiveness, it is widely used in the industry. However, because of the stiffness and the natural frequency of this material, it limits the usage of the 439 stainless steel. This paper is basically a study on how nitriding process can improve the stiffness and natural frequency of the stainless steel. The nitriding process consists of two parts: which are the low temperature nitriding and high temperature nitriding. It contains the step-by-step process on how the both nitriding process will be done to the 439 stainless steel and the improvement in stiffness and natural frequency will be observed and studied after both low temperature nitriding and high temperature nitriding. From the results of this study, it is hoped that 439 stainless steel can be used more on the field that it has never used before because of its limitation and hence, some cost will be saved.