Comparative evaluation of the abrasive slurry wear behavior of alloy surfaces produced by a Plasma Transferred Arc hardfacing process

Abstract

Abrasive slurry wear is generally defined as a mechanical interaction in which the material becomes lost in a surface that is in contact with moving particles, such as laden liquid. Slurry wear abrasion occurs in extruders, slurry pumps, and pipes that carry the slurry of minerals and ores in mineral processing industries. The life of the components used under slurry abrasion conditions is governed by the process parameters, the properties of the abrasive particles in the slurry, and the material properties. This paper analyses in detail the effects of operating variables, such as abrasive particle size, slurry concentration, speed of rotation, and slurry bath temperature, on the abrasive slurry wear behavior of a iron based alloy (stainless steel), cobalt based alloy (stellite), and nickel based alloy (colmonoy) surfaces produced by a Plasma Transferred Arc (PTA) hardfacing process. Of the four variables considered in this investigation, it was found that the slurry concentration had a predominant effect on the wear rate of hardfaced surfaces compared to the other variables. Microstructural analyses of the worned surfaces were carried out using SEM. Both the experimental and mathematical investigations showed that the wear resistance of an iron based alloy was 4 times better than the base metal. Similarly, the cobalt based alloy exhibited a 3 times higher wear resistance while the nickel based alloy showed a 2 times higher wear resistance compared to the base metal (carbon steel).

Investigation of mechanical and abrasive wear behavior of blast furnace slag‐filled needle‐punched nonwoven viscose fabric epoxy hybrid composites

“…When a series of grooves over a surface is generated by the flow of liquid with suspended particles is called slurry abrasion. Wear by slurry abrasion occurs in extruders, slurry pumps, pipes carrying of minerals and ores in mineral processing industries, pump impellers, nozzles, earthmoving equipment, agricultural implements, mining machinery components and offshore components . Slurry abrasion has received much less attention by the researchers than dry abrasion.…”

Modeling and Optimization in Investigating Thermally Sprayed Ni-Based Self-Fluxing Alloy Coatings: A Review

“…Results and conclusions of the research, but only for Ni-based self-fluxing alloys, given in Reference [ 23 ], are similar to those in Reference [ 22 ]. Research of abrasive slurry of different PTA welded deposits of 3-mm thickness (Ni-based self-fluxing alloys, cobalt-base alloy, and stainless steel) was conducted in the paper by Ramachandran et al [ 24 ]. Four different input variables were being varied at five levels (size of river sand particles in water, temperature and concentration of slurry, and number of revolutions of the samples), forming a central composite design of experiments with the aim to obtain statistical models of the wear rate dependence on the mentioned input variables.…”

Effect of blast furnace slag content on mechanical and slurry abrasion behavior of needle‐punched nonwoven fabric reinforced epoxy composites

“…[10][11][12][13] A few researchers have reported on the abrasive wear behavior of polymer composites in a slurry environment. When the flow of liquid with suspended particles over a surface generates a series of grooves, then that kind of abrasive wear is called slurry abrasion.…”

“…Wear by slurry abrasion occurs in extruders, slurry pumps, pipes carrying minerals and ores in mineral processing industries, pump impellers, nozzles, earthmoving equipment, agricultural implements, mining machinery components, and offshore components. [10][11][12][13] A few researchers have reported on the abrasive wear behavior of polymer composites in a slurry environment. [14,15] However, no report is available in the literature on the abrasive wear behavior of blast furnace slag-based polymer composites.…”

“…When the flow of liquid with suspended particles over a surface generates a series of grooves, then that kind of abrasive wear is called slurry abrasion. Wear by slurry abrasion occurs in extruders, slurry pumps, pipes carrying minerals and ores in mineral processing industries, pump impellers, nozzles, earthmoving equipment, agricultural implements, mining machinery components, and offshore components . A few researchers have reported on the abrasive wear behavior of polymer composites in a slurry environment .…”