Effect of Nano Size TiO₂ Particles on Mechanical Properties of AWS E 11018M Type Electrode

Tapan Kumar Pal, Utpal Kumar Maity

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DOI: 10.4236/msa.2011.29173                

Abstract

Addition of nano size particles of TiO₂ in the coating of shielded metal arc welding electrode (E 11018M) partially substituting the conventional micro size TiO₂ was studied for possible enhanced electrode characteristics. The results show that the nano size particle of TiO₂ improved recovery of elements such as Mn, Ni, Mo, Ti etc. as well as increased all-weld-metal tensile and charpy impact properties at –51℃. Furthermore, the charpy impact properties were found to be very sensitive to variations in Ti content of the weld deposit.

Keywords

High Strength Steel, Coated Electrode, Nano Size Tio₂, Strength and Toughness

Conflicts of Interest

The authors declare no conflicts of interest.

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