Ravindran Nair, Ajay Nair (2012) The Investigation Of The Influence Of Filler Welding Materials On The Microstructure And Hardness Of GTA Welding In Dual Phase Steel. Project Report. UTeM, Melaka, Malaysia. (Submitted)
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Abstract
Dual phase steel is new class of high strength low alloy steel where it is still in development process. Therefore, there is no dual phase steel filler material that has been produced as of yet. The main objective of this research is to study the influence of filler welding material on the microstructure and hardness of GTAW welding in dual phase steel. This study will be conducted using mild steel plate with a certain preset dimension and the type of joint involved is butt joint. The plates then undergo intercritical annealing process at 740⁰C in 40 minutes followed by rapid cooling to transform ferrite and pearlite phase in mild steel to ferrite and martensite phase to obtain the dual phase steel. The plates then undergoes welding process using five different filler material which are mild steel, stainless steel, aluminium, brass and copper as per the specific welding parameter. The measurement of strength of weldment and dual phase steel itself is determined using hardness test and the microstructure is then viewed under an optical microscope. The higher the Brinell Hardness Number obtained means the higher the strength of the weld. The result obtained indicate which filler material is suitable and gives best solution for welding dual phase steel in GTAW welding and will be suggested for further research and development as dual phase steel is become widely used in automotive and aerospace industries.
| Item Type: | Final Year Project (Project Report) |
|---|---|
| Uncontrolled Keywords: | Welding, Gas tungsten arc welding |
| Subjects: | T Technology > T Technology (General) T Technology > TS Manufactures |
| Divisions: | Library > Final Year Project > FKM |
| Depositing User: | Mi Azian Ab. Karim |
| Date Deposited: | 26 Jul 2013 22:03 |
| Last Modified: | 28 May 2015 03:53 |
| URI: | http://digitalcollection.utem.edu.my/id/eprint/7960 |
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