Nurulhuda , Arifin (2009) Study The Effect Of High Temperature Cycle Exposure To Evaluation On Embrittlement Of Welded Pressure Vessel Steel. Project Report. UTeM, Melaka,Malaysia. (Submitted)
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Study_The_Effect_Of_High_Temperature_Cycle_Exposure_To_Evaluation_On_Embrittlement_Of_Welded_Pressure_Vessel_Steel_Nurulhuda_Bt_Arifin_TS283.N87_2009_-_24_Pages.pdf - Submitted Version Download (787kB) |
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Study_The_Effect_Of_High_Temperature_Cycle_Exposure_To_Evaluation_On_Embrittlement_Of_Welded_Pressure_Vessel_Steel_Nurulhuda_Bt_Arifin_TS283.N87_2009.pdf - Submitted Version Restricted to Registered users only Download (4MB) |
Abstract
The research of the effect of high temperature cycle exposure to evaluation on embrittlement of welded pressure vessel steel has been developed purposely in order to study the effect of embrittlement behavior of pressure vessel steel after expose to elevated temperature. The temper embrittlement has been usually observed in pressure vessel steel that serving at high temperature, due to the segregation of trace elements at the grain boundaries and/or carbide interface. This impurity elements segregation will cause deterioration hardness of the steel based on the theory. These pressure vessel steel have a potential for temper embrittlement. Therefore, the research and observation in the mechanical properties of tempered welded area are very important in order to support on-going steel development for services temperature and also useful to avoid the embrittlement during the services. The pressure vessel steel (ASTM A516) have been chosen to be used as the type of specimens in this research. The welded area of pressure vessel steel is on service temperature of pressure vessel (450°C) at different exposure time. The welded area for all specimens after exposure was characterized by microstructure observation, EDS, and hardness measurement. Based on these results, evaluation on embrittlement is discussed in order to determine the approximate effect of high cycle temperature to embrittlment behavior. Experimental results revealed that temper embrittlement hardly affect the hardness value for welded area and the microstructure characteristics of pressure vessel steel are significantly changed.
| Item Type: | Final Year Project (Project Report) |
|---|---|
| Uncontrolled Keywords: | Pressure vessels, Steel -- Embrittlement |
| Subjects: | T Technology > T Technology (General) T Technology > TS Manufactures |
| Divisions: | Library > Final Year Project > FKP |
| Depositing User: | Mohd Syahrizal Mohd Razali |
| Date Deposited: | 23 Oct 2012 03:58 |
| Last Modified: | 28 May 2015 03:42 |
| URI: | http://digitalcollection.utem.edu.my/id/eprint/6379 |
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