A Review on Mechanisms and Testing of Wear in Slurry Pumps, Pipeline Circuits, and Hydraulic Turbines

Abstract

This paper presents an overview about particulate wear that occurs in various components of slurry pumps, pipeline systems, and hydraulic turbines due to the mechanical action caused by the flow of solid–liquid mixtures. Three most common wear problems, namely, erosion, erosion–corrosion, and abrasion occur in different industries like thermal and hydro power plants, mining, chemical, and marine industries. Therefore, the efficiency of these industries and power plants highly depends on the wear damages. So, it becomes necessary to govern the wear phenomenon. In this paper, the various properties of particles and target are discussed on which the particulate wear depends. Present overview explains the experimental methods of measuring the particulate wear at in situ and ex situ conditions by using the different types of testers, rigs, and pilot plant test loops. Moreover, the empirical and analytical correlations or models for the prediction of particulate wear in pumps, piping circuits, and hydraulic turbines are also discussed in present literature review. By studying the all possible advantages and disadvantages, the gaps in knowledge of wear prediction methods and models are highlighted. At the end, a “think-model” for the prediction as well as reduction of wear in the various components is presented on the basis of different experimental and computational fluid dynamics (CFD) based simulation work. Further investigations can be carried out to develop the more accurate and flexible models that can be used to predict the particulate wear in a wide range of applications.

Short review on hydroxyapatite powder coating for SS 316L

“…Surface engineering plays a crucial role in protecting biomaterials used in implants. It protects against corrosion, biodegradation, and erosion [18,[23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38]. Various coating processes are used to enhance the surface of engineering and biomedical materials [39][40][41][42].…”

Consequences of hydroxyapatite doping using plasma spray to implant biomaterials

“…In most cases, thin and thick coatings are placed on bioimplants in order to protect them from corrosion and erosion [11][12][13][14]. Both corrosion and erosion have a significant negative impact on the longevity and tenacity of the various materials [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. Various surface protection techniques are used commercially, such as claddings [31][32][33][34][35][36][37][38][39][40][41][42][43], electrochemical vapor deposition (EVD) [44], chemical vapor deposition (CVD) [45][46][47][48], plasma vacuum deposition (PVD) [13,42,[49][50][51][52][53][54], HVOF/HVAF [17,…”

Corrosion cracking in Mg alloys based bioimplants

“…According to Bhuiyan and colleagues [43] findings, many different coating techniques that are able to increase the fatigue life of magnesium alloys when exposed to corrosive conditions [76]. Surface engineering methods provides a safeguard against the corrosion, biodegradation, and erosion [77][78][79][80][81][82][83][84][85][86][87][88][89][90][91][92][93]. Various coating methods are employed to protect the surface of different biomedical materials [94][95][96][97].…”