Simulation Analysis of Damage Mechanism on Ferritic Material SA-213 T22 Type Using Finite Element Method Program

Abstract:

Material with good mechanical resistance in the high temperature operation is needed in the power generation industry. Due to the influence of stress, high temperatures and long operation of time, unpredictable failure often occurs resulting plant stopped working. The cause of failure, associated with some changes in mechanical properties of the material can be represented by microstructural conditions. Ferritic material SA-213 T22 is widely used in power plants. To get more information of those mechanical properties, the study of damage mechanisms has been conducted by analysis simulation. The Benefits of this study is to get proper operating condition to avoid unpredictable failures. Using finite element method, it is found that in constant temperature 580 °C with the load rate of 23.03MPa per second the strain is 55.25%. When the load rate is decreased to 3.84MPa per second the strain is 63.57%. In the constant temperature 300 °C with load rate 11,52MPa per second the strain is 27.55%. When the temperature increased to 560 °C the strain is 32.02%. In the constant temperature, the decreased of load rate give impact the increased of ductility. Otherwise in the constant load rate, the increased of temperature give impact only small amount to increase the ductility. To prevent the unpredictable failure the sudden increase of load rate should be avoided.

• Periodical: Materials Science Forum (Volume 827)
• Pages: 208-212
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.827.208
• Online since: August 2015
• Authors: Cukup Mulyana, Otong Nurhilal, Adhitya Rusel Syah, Nendi Suhendi
• Keywords: Damage Mechanism, Ferritic Material SA-213 T22, Finite Element Method

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