Erosion-corrosion of an Aluminum Alloy in Two Phase Jet Flow

1994 ◽  
Vol 43 (4) ◽  
pp. 194-199 ◽  
Author(s):  
Hiroshi Nanjo ◽  
Norio Sanada ◽  
Kazuo Koike
Keyword(s):  
Aluminum Alloy ◽  
Jet Flow ◽  
Two Phase ◽  
Erosion Corrosion

Erosion-corrosion damage of aluminum alloy in a high-speed, high-temperature, two-phase flow

Wear ◽  
1995 ◽  
Vol 186-187 ◽  
pp. 573-578 ◽  
Author(s):  
Hiroshi Nanjo ◽  
Yoshiaki Kurata ◽  
Norio Sanada ◽  
Kentaro Miyauchi ◽  
Ryoichiro Ohshima ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
High Temperature ◽  
High Speed ◽  
Two Phase Flow ◽  
Corrosion Damage ◽  
Phase Flow ◽  
Two Phase ◽  
Erosion Corrosion

A HOMOGENEOUS NON-EQUILIBRIUM TWO-PHASE CRITICAL FLOW MODEL FOR THE ANALYSIS OF SUPERSONIC JET FLOW

1990 ◽  
Author(s):  
S. Dickman ◽  
Ezra Elias ◽  
S. Kaizerman ◽  
E. Wacholder ◽  
S. Olek
Keyword(s):  
Flow Model ◽  
Supersonic Jet ◽  
Jet Flow ◽  
Critical Flow ◽  
Two Phase ◽  
Non Equilibrium

Erosion-corrosion behaviors of Z2CN19·10N austenitic stainless steel in liquid–solid two-phase flow

2021 ◽  
Author(s):  
Xiangfeng Wu ◽  
Chengtao Li ◽  
Kunjie Luo ◽  
Kewei Fang ◽  
Yanxin Qiao
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Erosion Corrosion ◽  
Corrosion Behaviors

Numerical Investigation on Multiphase Erosion-Corrosion Problem of Steel of Apparatus at a Well Outlet in Natural Gas Production

2018 ◽  
Vol 140 (12) ◽  
Author(s):  
Zhang Jianwen ◽  
Jiang Aiguo ◽  
Xin Yanan ◽  
He Jianyun
Keyword(s):  
Fluid Flow ◽  
Natural Gas ◽  
Production Rate ◽  
Gas Production ◽  
Two Phase ◽  
Gas Well ◽  
Chemical Corrosion ◽  
High Production Rate ◽  
Erosion Corrosion ◽  
Corrosion Problem

The erosion-corrosion problem of gas well pipeline under gas–liquid two-phase fluid flow is crucial for the natural gas well production, where multiphase transport phenomena expose great influences on the feature of erosion-corrosion. A Eulerian–Eulerian two-fluid flow model is applied to deal with the three-dimensional gas–liquid two-phase erosion-corrosion problem and the chemical corrosion effects of the liquid droplets dissolved with CO2 on the wall are taken into consideration. The amount of erosion and chemical corrosion is predicted. The erosion-corrosion feature at different parts including expansion, contraction, step, screw sections, and bends along the well pipeline is numerically studied in detail. For dilute droplet flow, the interaction between flexible water droplets and pipeline walls under different operations is treated by different correlations according to the liquid droplet Reynolds numbers. An erosion-corrosion model is set up to address the local corrosion and erosion induced by the droplets impinging on the pipe surfaces. Three typical cases are studied and the mechanism of erosion-corrosion for different positions is investigated. It is explored by the numerical simulation that the erosion-corrosion changes with the practical production conditions: Under lower production rate, chemical corrosion is the main cause for erosion-corrosion; under higher production rate, erosion predominates greatly; and under very high production rate, erosion becomes the main cause. It is clarified that the parts including connection site of oil pipe, oil pipe set, and valve are the places where erosion-corrosion origins and becomes serious. The failure mechanism is explored and good comparison with field measurement is achieved.

Weldablity of the Lap Joint between a 5182 Aluminum Alloy and a DP1180 Two-Phase Steel Sheet

2020 ◽  
Vol 52 (4) ◽  
pp. 573-586
Author(s):  
N. C. Lü ◽  
G. D. Hao ◽  
Y. T. Wang
Keyword(s):  
Aluminum Alloy ◽  
Steel Sheet ◽  
Lap Joint ◽  
Two Phase

scholarly journals Simulation Analysis of Erosion–Corrosion Behaviors of Elbow under Gas-Solid Two-Phase Flow Conditions

Lubricants ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 92
Author(s):  
Qunfeng Zeng ◽  
Wenchuang Qi
Keyword(s):  
Chemical Reaction ◽  
Simulation Analysis ◽  
Electrochemical Corrosion ◽  
Simulation Software ◽  
Solid Particles ◽  
Two Phase ◽  
Particle Count ◽  
Coal Gas ◽  
Erosion Corrosion ◽  
Corrosion Behaviors

In the production and gathering process of coal gas, the complex composition of the coal gas, harsh environments, the complex medium, and high content of solid particles in slurry cause the equipment malfunctions and even failure because of erosion and corrosion. In the present study, COMSOL multi-physics finite element simulation software is used to simulate the erosion–corrosion behaviors of elbow in key chemical equipments. The electrochemical corrosion, solid particle erosion, chemical reaction, and turbulent flow are coupled together. The particle count method is proposed to clarify the erosion phenomenon. The simulation results show that particles with high turbulent intensity hit the wall of elbow directly, which forms a slanted elliptical erosion zone on the extrados surface at 40°–50°. The chemical reaction in turbulence has a difference in the concentration distribution of substances, and this phenomenon leads to different magnitudes of the corrosion current densities in the tube. Moreover, 1/6 released particles hit the extrados surface of the elbow. These findings are beneficial to understand the erosion–corrosion phenomena and design the elbow in key chemical equipment.

scholarly journals Numerical Simulation of Solid Particle Erosion in Aluminum Alloy Spool Valve

2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Jin-gang Liu ◽  
Gao-sheng Wang ◽  
Tian-heng Peng ◽  
Sheng-qiang Jiang
Keyword(s):  
Particle Size ◽  
Aluminum Alloy ◽  
Prediction Model ◽  
Particle Shape ◽  
Two Phase ◽  
Wear Prediction ◽  
Valve Body ◽  
Fluent Software ◽  
Improved Design ◽  
Spool Valve

Aluminum alloy spool valve body material is prone to severe wear on the wall under the condition of oil contamination. Aiming at this problem, combined with the theory of liquid-solid two-phase flow and erosion wear, the wear prediction model of aluminum alloy sliding valve wall is established based on computational fluid dynamics, and the effects of turbulence and wall materials, particle size distribution, and particle shape on particle motion are discussed. The calculation of the wear prediction model is done with Fluent software. This study predicts the wear of the wall under actual working conditions and calculates the influence of particle size, particle shape, and pressure difference on the wall wear of the aluminum alloy sliding valve. The research results have certain significance for the maintenance and upkeep of aluminum alloy sliding valve wall, improved design, and life prediction.

Erosion–corrosion resistance of a β-Ta2O5 nanocrystalline coating in two-phase fluid impingement environments

2019 ◽  
Vol 35 (8) ◽  
pp. 925-938
Author(s):  
Jiang Xu ◽  
Shuang Peng ◽  
Shuyun Jiang ◽  
Paul Munroe ◽  
Zong-Han Xie
Keyword(s):  
Corrosion Resistance ◽  
Two Phase ◽  
Nanocrystalline Coating ◽  
Erosion Corrosion ◽  
Phase Fluid
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