Wear Behavior of Hardfacings on Rotary Tiller Blades

Wear Behavior of Weld Overlays on Excavator Bucket Teeth

Improving wear resistance via hardfacing of cultivator shovel

Abrasive Wear Behavior of Surface Hardfacing on Propeller ShaftsAISI 4140Alloy Steel

Many Industries face the problem of wear on compone nts in service. Due to wear the components need replacement, which costs money and causes downtime of the equipment. Surfacing is a process of depositing a material lay er over a base metal or substrate either to improve surface characteristics like corrosion resi stance, wear resistance, etc. or to get the required size or dimension. The economic success of the hardfacing process depends on selective application of hardfacing material and it s chemical composition for a particular application. Many studies revealed that carbon and chromium are the major elements which are used in hardfacing alloys. It is found that the by varying the percentage of carbon and chromium corrosion and wear resistance can be enhan ced. In this paper an attempt has been made to discuss the various types of wear, surface protection by hardfacing techniques, Manual Metal Arc Welding (MMAW) process and applica tions of hardfacing.

S.P. Sankaran

Papers

Comparative study of hardfacing of valve seat ring using MMAW process