scholarly journals The Impact of Drugs as Corrosion Inhibitors on Aluminum Alloy in Coastal-Acidified Medium

2018 ◽  
Author(s):  
Ojo Sunday Isaac Fayomi ◽  
Paul Apeye Lucky Anawe ◽  
Ayodele Daniyan
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Inhibitors ◽  
The Impact

Anti-Corrosive Effect of Jordanian-Bay- Leaves Aqueous Extract on Mild Steel in 1.0 M Hydrochloric Acid Solution

2021 ◽  
Vol 17 ◽  
pp. 614-618
Author(s):  
Nawal H. Bahtiti ◽  
Ibrahim Abdel-Rahaman
Keyword(s):  
Hydrochloric Acid ◽  
Adsorption Isotherm ◽  
Aqueous Extract ◽  
Corrosion Inhibitors ◽  
Polarization Technique ◽  
Corrosive Effect ◽  
The Impact ◽  
Natural Inhibitors ◽  
Temkin Adsorption Isotherm ◽  
Hcl Solution

Natural inhibitors are the most crucial manner to lessen the corrosion price of various business metals. There are several strategies being used with corrosion inhibitors. One technique being used is the Electrochemical strategies. The gain with this technique is their brief size time and mechanistic information. It is beneficial in the corrosion's layout safety techniques besides the layout of the brand new inhibitors, there are 3 styles of corrosion inhibitors as anodic inhibitors, cathodic inhibitors, over one inhibitor. The corrosion inhibition of slight metallic in 1.0 M HCl solution with the aid of using Jordanian -Bay- leaves extract has been studied with the use of potentiodynamic polarization technique. Results received a display that Bay- leaves aqueous extract behaves as an anodic inhibitor for slight metallic in 1.0 M HCl solution. The inhibitor capabilities thru adsorption following Temkin adsorption isotherm. The impact of parameters like temperature and inhibitor awareness at the corrosion of slight metallic has additionally been studied.

IMPACT OF MATERIAL AND DIMENSIONS OF PRODUCT UPON PARAMETERS OF WAVE DEFORMATION STRENGTHENING

2021 ◽  
Vol 2021 (2) ◽  
pp. 21-27
Author(s):  
Andrey Kirichek ◽  
Sergey Barinov ◽  
Aleksandr Yashin ◽  
Lyubov' Nikitina ◽  
Aleksandr Konstantinov
Keyword(s):  
Aluminum Alloy ◽  
Micro Hardness ◽  
Surface Layers ◽  
Face Surface ◽  
Wave Deformation ◽  
Length Increase ◽  
Processing Modes ◽  
The Impact ◽  
First Time ◽  
Geometrical Dimensions

Previously it was defined that geometrical dimensions of material worked have a significant impact upon the process of wave deformation strengthening, as at equal volumes of strengthened samples and processing modes there are observed different cards of micro-hardness in surface layers. In the paper there are shown investigations of the impact of dimensions of samples made of different material kinds (steel 45, titanium VT 1-0, bronze BRAZh 9-4, aluminum alloy B-95) upon wave deformation strengthening parameters). The investigations mentioned were carried out for the first time on a test desk specially developed. Strengthening effectiveness was estimated according to micro-hardness distribution in a surface layer. The analysis of the results obtained allowed defining that in chosen modes of WDS takes place strengthening not only a face surface but a back one of the sample at that in the core of the sample an initial hardness of material is kept. The investigations carried out allowed defining the fact that at the increase of material thickness from 10 to 20 mm resulted in the growth of degree (ΔHμ) and depth (hμ) of strengthening at WDS of samples of steel 45 - by 24 and 32%, samples of bronze BRAZh 9-4 – by 22 and 21%, samples of titanium VT 1-0 – by 24 and 32%, samples of aluminum alloy B-95 – by 40 and 62%. The samples length increase from 50 to 100 mm is accompanied by the decrease of ΔHμ and hμ at strengthening: steel 45 – by 36 and 70%, bronze BRAZh 9-4 – by 27 and 43%, titanium VT 1-0 – by 24 and 32%, aluminum alloy B-95 – by 40 and 62%.

Enhancing the Impact Toughness of ADC12 Aluminum Alloy by Alloying with Y and Solution Treatment

2018 ◽  
pp. 297-306 ◽  
Author(s):  
Zhenghua Huang ◽  
Yi Yao ◽  
Wenjun Qi ◽  
Chunjie Xu ◽  
Zhongming Zhang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Impact Toughness ◽  
Solution Treatment ◽  
The Impact

scholarly journals Material Analysis and Molecular Dynamics Simulation for Cavitation Erosion and Corrosion Suppression in Water Hydraulic Valves

Materials ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 453 ◽  
Author(s):  
Masoud Kamoleka Mlela ◽  
He Xu ◽  
Feng Sun ◽  
Haihang Wang ◽  
Gabriel Donald Madenge
Keyword(s):  
Molecular Dynamics ◽  
Md Simulation ◽  
Essential Role ◽  
Corrosion Inhibitors ◽  
Cavitation Erosion ◽  
Dynamics Simulation ◽  
Preference Ranking ◽  
Water Hydraulics ◽  
The Impact ◽  
Hydraulic Valves

In the milestone of straggling to make water hydraulics more advantageous, the choice of coating polymer for water hydraulics valves plays an essential role in alleviating the impact of cavitation erosion and corrosion, and this is a critical task for designers. Fulfilling the appropriate selection, we conflicted properties that are vital for erosion and corrosion inhibitors, as well as the tribology in the sense of coefficient of friction. This article aimed to choose the best alternative polymer for coating on the selected substrate, that is, Cr2O3, Al2O3, Ti2O3. By applying PROMETHEE (Preference Ranking Organization Method for Enrichment Evaluations), the best polymer obtained with an analyzed performance attribute is Polytetrafluoroethylene (PTFE) that comes up with higher outranking (0.5932052). A Molecular Dynamics (MD) simulation was conducted to identify the stronger bonding with the regards of the better cleave plane between Polytetrafluoroethylene (PTFE) and the selected substrate. Polytetrafluoroethylene (PTFE)/Al2O3 cleaved in (010) plane was observed to be the strongest bond in terms of binding energy (3188 kJ/mol) suitable for further studies.

Predicting the Impact of Quenching on Mechanical Properties of Complex-Shaped Aluminum Alloy Parts

1995 ◽  
Vol 117 (2) ◽  
pp. 479-488 ◽  
Author(s):  
D. D. Hall ◽  
I. Mudawar
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Aluminum Alloy ◽  
Boundary Conditions ◽  
Finite Element Program ◽  
Part Geometry ◽  
Heat Treated ◽  
Element Program ◽  
Nozzle Configuration ◽  
The Impact

The mechanical properties of age-hardenable aluminum alloy extrusions are critically dependent on the rate at which the part is cooled (quenched) after the forming operation. The present study continues the development of an intelligent spray quenching system, which selects the optimal nozzle configuration based on part geometry and composition such that the magnitude and uniformity of hardness (or yield strength) is maximized while residual stresses are minimized. The quenching of a complex-shaped part with multiple, overlapping sprays was successfully modeled using spray heat transfer correlations as boundary conditions within a finite element program. The hardness distribution of the heat-treated part was accurately predicted using the quench factor technique; that is, the metallurgical transformations that occur within the part were linked to the cooling history predicted by the finite element program. This study represents the first successful attempt at systematically predicting the mechanical properties of a quenched metallic part from knowledge of only the spray boundary conditions.

Experimental Studies on Corrosion Behaviors of Casing Steel N80 in High Salinity of Brine

2014 ◽  
Vol 1081 ◽  
pp. 205-209
Author(s):  
Feng Lin ◽  
Ming Biao Xu ◽  
Yun Long Mu ◽  
Lei Wang
Keyword(s):  
Corrosion Inhibitors ◽  
High Salinity ◽  
Experimental Studies ◽  
Impact Factors ◽  
Operational Variables ◽  
Weight Loss Method ◽  
Corrosion Behaviors ◽  
Ion Contents ◽  
Loss Method ◽  
The Impact

Brine corrosion can remain a large obstacle to the rehabilitation project of Missan Oilfields in Iraq. To minimizecorrosion risks, the 13-3/8′′ casing steel, N80,has been employed to examine corrosion behaviors in simulated formation water (i.e., brine). The impact factors of corrosion such as temperature, ion contents, exposure time, and pH have been studied. Also, corrosion inhibitors available in brine have been screened by a static weight loss method. The results showed that effects of environmental and operational variables on N80 corrosion are fairly complicated; the corrosion inhibitor, HN-amph, exhibits excellent corrosion inhibition in brine. This work will provide important information for on-site application.

Environmental and Economic Assessment of Recycled Aluminum Alloy Production - A Case Study of China

2010 ◽  
Vol 146-147 ◽  
pp. 1027-1030
Author(s):  
Jing Min Hong ◽  
Zainab Z. Ismail ◽  
Jing Lan Hong
Keyword(s):  
Aluminum Alloy ◽  
Economic Impacts ◽  
Economic Assessment ◽  
High Energy ◽  
Electricity Production ◽  
Aluminum Scrap ◽  
Terrestrial Ecotoxicity ◽  
Production Stages ◽  
The Cost ◽  
The Impact

A life cycle assessment was carried out to estimate the environmental and economic impacts of recycled aluminum alloy production. The impact seen from non-carcinogens, respiratory inorganics, terrestrial ecotoxicity, global warming and non-renewable energy categories played an important role to overall environmental impacts. The impact seen from carcinogens and aquatic ecotoxicity played relatively small role, while the impact seen from the rest categories affect the environment was ignorable. Specifically, the emissions from the aluminum and silicon production stages involved played an important role due to high energy consumption, while potential impact generated from other elements was quite small. Similarly, the cost of old aluminum scrap represented the dominant contribution to overall economic impacts. Accordingly, choosing natural gas based electricity production technology and improving old aluminum scrap consumption efficiency are the efficient way to minimize the overall environmental and economic impact, respectively.

Structural Modifications of the Aluminium Alloy in Conditions of Additional Shock Impulse Load

2013 ◽  
Vol 592-593 ◽  
pp. 598-601 ◽  
Author(s):  
Volodymyr Hutsaylyuk ◽  
Mykola Czausow ◽  
Lucjan Śnieżek ◽  
Andrii Pylypenko ◽  
Tomasz Ślęzak ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Room Temperature ◽  
Structural Changes ◽  
Physical Nature ◽  
Structural Modifications ◽  
Equilibrium Processes ◽  
Impulse Load ◽  
Aluminum Alloy 2024 ◽  
The Impact

This work has been done to research the physical nature of the mechanism of structural changes of the aluminum alloy 2024-T3 at the conditions of additional impulse load. There was revealed an anomaly growth in plasticity of the material after such type load realization at the room temperature. Based on fractographical research the impact of dynamic non-equilibrium processes on the structural changes of the material and its macro-mechanical properties was analyzed.

Review of Copper Atmospheric Corrosion in H2S

2014 ◽  
Vol 548-549 ◽  
pp. 177-181
Author(s):  
Ping Wang ◽  
Zhao Hui Yin ◽  
Han Tao Ren ◽  
Song Xu ◽  
Dong Wei Ma
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Behavior ◽  
Atmospheric Corrosion ◽  
Corrosion Inhibitors ◽  
External Factors ◽  
Corrosion Mechanism ◽  
Corrosive Environment ◽  
Copper Corrosion ◽  
Environment Factors ◽  
The Impact

The losses due to copper corrosion in H2S atmospheric corrosion have attracted much focus. It’s important to improve copper corrosion resistance that the corrosion law, corrosion mechanism and characteristics were studied in H2S environment. This paper reviewed the corrosion behavior of copper, analyzed the impact of environment factors and corrosion analysis tools. Through evaluating and improving corrosion by external factors, including improving corrosive environment, using coating protection and adding corrosion inhibitors, appropriate corrosion measures were taken to extend the life of the equipment.

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