Erosion Wear Behaviors of Low Chromium Cast Iron Containing Nickel

2011 ◽  
Vol 233-235 ◽  
pp. 2984-2987 ◽  
Author(s):  
Jing Pei Xie ◽  
Ai Qin Wang ◽  
Wen Yan Wang ◽  
Ji Wen Li ◽  
Luo Li Li
Keyword(s):  
Cast Iron ◽  
Wear Rate ◽  
Abrasion Resistance ◽  
Acid Corrosion ◽  
Great Influence ◽  
Erosive Wear ◽  
Weak Acid ◽  
Erosion Wear ◽  
Acid Environment ◽  
Chromium Cast Iron

The erosion wear experiments of low-chromium cast iron containing nickel were done by MCF-30 Erosion Abrasion Experimental Machine. The structure and surface morphology after erosive wear were analyzed by SEM and XRD. The results indicated that the distribution of carbide was reticular after tempering at 250and oil quenching at 960. The maximal erosion wear rate was appeared at 60 °erosion angle, high acid corrosion media have great influence on the abrasion resistance of experimental material and corrosion effects almost had no influence on the abrasion resistance of experimental material in the weak acid environment of pH≥3. The erosive wear mechanism of the experimental material was studied.

Erosion Mechanism and Sensitivity Parameter Analysis of Natural Gas Curved Pipeline

2019 ◽  
Vol 141 (3) ◽  
Author(s):  
Jie Zhang ◽  
Hao Yi ◽  
Zhuo Huang ◽  
Jiadai Du
Keyword(s):  
Natural Gas ◽  
Wear Rate ◽  
Shape Factor ◽  
Great Influence ◽  
Solid Particles ◽  
Parameter Analysis ◽  
Particle Collision ◽  
Erosion Wear ◽  
Gas Wells ◽  
The Impact

With the deepening of natural gas exploitation, the problem of sand production in gas wells is becoming more and more serious, especially in high-yield gas wells. The solid particles in natural gas are very likely to cause erosion and wear of downstream pipelines and throttling manifolds, which makes the pipeline ineffective. Once the pipeline is damaged, the natural gas leaks, which may cause serious catastrophic accidents. In this paper, the impact of sand particles on the pipeline wall is predicted by the analysis of the research on bent and continuous pipeline combined with particle collision model. The parameters of different particles (particle shape factor, particle velocity, and particle diameter), different bent parameters (angle, diameter, and curvature-to-diameter ratio), and the influence of different continuous pipeline parameters (assembly spacing and angle) are explored on the erosion and wear mechanism of curved pipeline. The results show that the shape of the particles has a great influence on the wear of the curved pipeline. As the shape factor of the particles decreases, the wear tends to decrease. The bent area is subject to erosion changes as the particle parameters and piping parameters. The increase in pipeline diameter is beneficial to reduce the maximum and the average erosion wear rate. When the bent angle of the pipeline is less than 90 deg, the maximum erosion wear rate is basically the same. But when it is greater than 90 deg, it decreases with the increase in the bent angle. When the assembly angle of double curved pipeline is between 0 deg and 60 deg, the elbow is subject to severe erosion wear. At the same time, increasing the assembly spacing is beneficial to reduce the erosion wear rate. The research can provide a theoretical support for subsequent engineering applications.

scholarly journals Research on the properties of high chromium cast iron overlay welds deposited by tubular electrodes

2018 ◽  
Vol 90 (10) ◽  
Author(s):  
Michał Szymura ◽  
Artur Czupryński ◽  
Maciej Różański
Keyword(s):  
Cast Iron ◽  
Tungsten Carbide ◽  
Abrasion Resistance ◽  
Alloy Matrix ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Hardness Tests ◽  
Chromium Cast Iron ◽  
Carbide Particles

In the paper, there were shown the results of research on the properties of overlay welds consisted of one and three layers deposited by three types of tubular electrodes of the Fe-Cr-C alloy, Fe-Cr-C-Nb-Mo-W-V alloy and composite consist of tungsten carbide particles in the Fe-Cr-C alloy matrix. The study of hardfacing deposits included: test of met- al-mineral abrasion resistance, metallographic examinations, analysis of chemical compo- sition, and hardness tests. The test of abrasive usage in metal-mineral friction was made according to the procedure A of the ASTM G 65 standard.

CFD modeling of slurry flow erosion wear rate through mitre pipe bend

2022 ◽  
pp. 095440622110263
Author(s):  
Om Parkash ◽  
Arvind kumar ◽  
Basant Singh Sikarwar
Keyword(s):  
Wear Rate ◽  
Cross Section ◽  
Erosive Wear ◽  
Cfd Modeling ◽  
Phase Method ◽  
Solid Concentration ◽  
Erosion Wear ◽  
Pipe Bend ◽  
Outlet Cross Section ◽  
Wide Range

Erosive wear caused by particulates slurry is one of the major concerns in the pipe bend which may results in the failure of the pipe flow system. In the present work, erosion wear rate through mitre pipe bend caused by silica sand particulates slurry has been investigated using ANSYS Fluent code. The solid spherical particulates of size 125 µm and 250 µm having density of 2650 Kg/m3, were tracked to compute the erosion wear rate using Discrete Phase Method (DPM) model. The particulates were tracked using Eulerian-Lagrange approach along with k-ɛ turbulent model for continuous fluid phase. The silica particulates were injected at solid concentration of 5% and 10% (by weight) from the pipe inlet surface for wide range of velocities viz. 1–8 ms−1. The erosion wear rate was computed through four computational erosion models viz. Generic, Oka, Finnie and Mclaury. Furthermore, the outcomes obtained through Generic models are verified through existing experimental data in the literture. Moreover, the results of DPM concentration, turbulence intensity and particle tracking were predicted to analyze the secondary flow behaviour through the bend cross section. Finally, the effect of particulate size, solid concentration and flow velocity were discussed on erosion wear rate through bend cross section. The findings show that the locality of maximum erosive wear is positioned at the extrados of the bend outlet cross section. Additionally, it is found that Mclaury model offers higher erosion rate as compared to the other models and provides benchmark for designing the slurry pipeline system.

Study on Erosion Wear Property of Nickel-Chromium Cast Iron

2011 ◽  
Vol 117-119 ◽  
pp. 1084-1087
Author(s):  
Jing Pei Xie ◽  
Ai Qin Wang ◽  
Wen Yan Wang ◽  
Luo Li Li
Keyword(s):  
Cast Iron ◽  
Strong Acid ◽  
Impact Angle ◽  
Wear Loss ◽  
Test Machine ◽  
Wear Property ◽  
Erosion Wear ◽  
Nickel Chromium ◽  
The Impact ◽  
Chromium Cast Iron

Erosion wear experiments on Nickel-Chromium cast iron were tested by MCF-30 erosion test machine. The structure and surface morphology of these samples were analyzed by Scanning Electron Microscopy (SEM), Transmission Electron Microscope (TEM) and XRD. The influences of the impact angle and acidity on erosion wear property were analyzed. The discipline of the erosion wear property was discussed as well. The experimental results indicate that after oil quench at 960°C and temper at 250°C, the alloy carbide (Fe, Cr)3C which works as the wear resistance skeleton distributes uniformly in the matrix ; the shape of erosion wear curve is “M”. and the biggest wear loss is when the impact angle is 60°; the erosion wear property is affected greatly by the strong acid, but is little even can be ignored when pH≥3. The erosion wear mechanism of Nickel-Chromium cast iron is selective wear.

Effect of Heat Treatment on Microstructure and Mechanical Properties of Cr31 Hypereutectic Cast Iron

2015 ◽  
Vol 740 ◽  
pp. 36-42
Author(s):  
Chuan Xiao Peng ◽  
Wen Chao Cui ◽  
Xiao Yan Yang ◽  
Li Wang
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Cast Iron ◽  
Retained Austenite ◽  
Wear Property ◽  
Erosion Wear ◽  
Microstructure And Mechanical Properties ◽  
Bulk Hardness ◽  
Chromium Cast Iron ◽  
Carbide Product

The effect of destabilization at (960°C,1000°C,1050°C) followed by sub-critical heat treatment (SCHT) at (260°C, 450°C, 550°C) on microstructure and mechanical properties of a hypereutectic chromium cast iron containing 31 wt.% Cr was investigated. The response of the microstructure of the specimens differed significantly to heat treatment. With increasing destabilization temperature, the amount of retained austenite increased and it became more stable during following SCHT. The peak values of bulk hardness deceased with increasing destabilization temperature, while higher SCHT was needed to reach the hardness maximum. The hardness and erosion wear property of the specimens destabilization at 960°C or 1000°C deteriorated after SCHT at 550°C due to the formation of ferrite/carbide product, which was not found in the specimens destabilization at 1050°C followed by SCHT at 550°C. The specimen destabilization at 960°C + SCHT at 260°C performed best erosion wear resistance with matrix of martensite containing little austenite.

Investigation on erosion-wear behaviors of high-chromium cast iron with high nitrogen content in salt–sand slurry

2019 ◽  
Vol 6 (10) ◽  
pp. 106558
Author(s):  
Fugang Lu ◽  
Shizhong Wei ◽  
Liujie Xu ◽  
Yucheng Zhou ◽  
Fangfang Wang ◽  
...  
Keyword(s):  
Cast Iron ◽  
Nitrogen Content ◽  
Erosion Wear ◽  
High Nitrogen Content ◽  
High Nitrogen ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

Microstructure and erosion wear properties of high chromium cast iron added nitrogen by high pressure in alkaline sand slurry

Wear ◽  
2021 ◽  
pp. 203655
Author(s):  
Liujie Xu ◽  
Fangfang Wang ◽  
Fugang Lu ◽  
Yucheng Zhou ◽  
Chong Chen ◽  
...  
Keyword(s):  
High Pressure ◽  
Cast Iron ◽  
Erosion Wear ◽  
Wear Properties ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Chromium Cast Iron

On the Erosive Wear of Carbon Fiber-Reinforced Epoxy Composite in the Olive Oil Extraction Process

2020 ◽  
Vol 142 (7) ◽  
Author(s):  
M. M. Sakka ◽  
A. Bahri ◽  
E. Kaçar ◽  
K. Elleuch ◽  
M. Urgen
Keyword(s):  
Carbon Fiber ◽  
Wear Rate ◽  
Olive Oil ◽  
Epoxy Composite ◽  
Erosive Wear ◽  
Oil Extraction ◽  
Erosion Wear ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced ◽  
The Impact

Abstract The olive pomace erosion wear behavior of carbon fiber-reinforced epoxy composite (epoxy/CF) has been analyzed. A tribological test was carried out using an in house centrifugal testing setup in order to simulate the environment in olive oil extraction procedure. The environment is composed from a pomace-to-water ratio 70/30. The erosion wear-rate of this composite has been studied at different impact angles (45 deg and 90 deg) and at different impact velocities (200, 1200, 1500, and 2000 rpm). It was demonstrated that both the impact angle and the impact velocity have a significant effect on the carbon fiber-reinforced epoxy composite erosive wear-rate. The main findings reveal an erosive wear characterized by brittle damage; in fact, micro-cracks at the surfaces and sub-surfaces were found. The damage surfaces were marked by fragmented fibers.

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