The Experimental Study on Microbe Corrosion Resistance Performance of Cement Based Composite Material

2012 ◽  
Vol 598 ◽  
pp. 328-331
Author(s):  
Ying Bo Jiang
Keyword(s):  
Composite Material ◽  
Evaluation Index ◽  
Microbiological Corrosion ◽  
Microbial Corrosion ◽  
Accelerated Corrosion ◽  
Corrosion Resistant ◽  
Base Composite ◽  
Resistance Performance ◽  
Aerobic And Anaerobic ◽  
Anaerobic Environment

Use artificial enhanced sewage to configurate accelerated corrosion fluids, do the research on the performance of cement based composite material to resistance microbiological corrosion in the aerobic and anaerobic environment under the condition of sewage, the compressive strength and corrosion resistant coefficient and mass loss as the evaluation index, reveals the performance of cement base composite material to resistance microbial corrosion under the action of artificial intensified sewage.

Biofouling and Microbially Influenced Corrosion of Stainless Steels

2013 ◽  
Vol 794 ◽  
pp. 539-551 ◽  
Author(s):  
K.A. Natarajan
Keyword(s):  
Stainless Steels ◽  
Corrosion Potential ◽  
Sea Water ◽  
Surface Film ◽  
Microbial Corrosion ◽  
Delta Ferrite ◽  
Corrosion Resistant ◽  
Anaerobic Microorganisms ◽  
Microbially Influenced Corrosion ◽  
Aerobic And Anaerobic

Stainless steels are among the most investigated materials on biofouling and microbially-influenced corrosion (MIC). Although, generally corrosion-resistant owing to tenacious and passive surface film due to chromium, stainless steels are susceptible to extensive biofouling in sub-soil, fresh water and sea water and chemical process environments. Biofilms influence their corrosion behavior due to corrosion potential ennoblement and sub-surface pitting. Both aerobic and anaerobic microorganisms catalyse microbial corrosion of stainless steels through biotic and abiotic mechanisms. MIC of stainless steels is common adjacent to welds at the heat-affected zone. Both austenite and delta ferrite phases may be susceptible. Even super stainless steels are found to be amenable to biofouling and MIC. Microbiological, electrochemical as well as physicochemical aspects of MIC pertaining to stainless steels in different environments are analyzed.

REYNOLDS R-301

Alloy Digest ◽  
1954 ◽  
Vol 3 (5) ◽  
Keyword(s):  
Composite Material ◽  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Heat Treating ◽  
Corrosion Resistant ◽  
Bearing Strength ◽  
High Strength Aluminum Alloy

Abstract Reynolds R301 is a composite material, constituted of a core of high strength aluminum alloy, clad with a corrosion-resistant aluminum alloy. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and compressive, shear, and bearing strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Al-16. Producer or source: Reynolds Metals Company.

ASPECTS OF STRUCTURE FORMATION DISPERSION-STRENGTHENED METAL COMPOSITE MATERIAL OBTAINED ON THE BASIS OF SHAVINGS AND POWDER OF ALUMINUM CORROSION-RESISTANT ALLOY

2021 ◽  
pp. 39-46
Author(s):  
A.V. Gololobov ◽  
◽  
A.N. Nyafkin ◽  
A.N. Zhabin ◽  
◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Composite Material ◽  
Mechanical Alloying ◽  
Structure Formation ◽  
Metal Composite ◽  
Corrosion Resistant ◽  
Resistant Alloy ◽  
Aluminum Corrosion ◽  
Corrosion Resistant Alloy

A metal composite material (MCM) based on an aluminum corrosion-resistant alloy of the AMg6 brand, containing 22.5 % (vol.) Silicon carbide, obtained by mechanical alloying, has been investigated. Aspects of the formation of the MCM structure based on chips and powder from this alloy are considered. The influence of the initial components on the structure of the dispersion-strengthened MCM was investigated, and samples were made from this composite material.

Utilization of recycled hazardous waste bagasse as reinforcement to develop green composite material

2020 ◽  
Vol 17 (3) ◽  
pp. 399-406 ◽  
Author(s):  
Shashi Prakash Dwivedi ◽  
Garima Dwivedi
Keyword(s):  
Composite Material ◽  
Soil Pollution ◽  
Matrix Material ◽  
Partial Replacement ◽  
Green Composite ◽  
Waste Products ◽  
Ceramic Particles ◽  
Content Type ◽  
Base Composite ◽  
Bagasse Waste

Purpose In the current scenario, air pollution and soil pollution from the industries wastes are one of the major problems all over the world. Further, disposal of these wastes from industries are very costly. However, several attempts were carried out by various researchers in the past to use these wastes. One of the most common waste products is bagasse from sugar industries. These hazardous bagasse wastes lead to air and soil pollution. This study aims to recycle bagasse waste in the development of aluminium base composite as partial replacement of ceramic particles. Design/methodology/approach In the present investigation, recycled bagasse waste was used in the development of aluminium base composite as partial replacement of ceramic particles such as SiC, Al2O3 and B4C. Production industries of these ceramic particles (SiC, B4C and Al2O3) emit huge amount of greenhouse gases such as N2O3, CH4, CO2 and H2O. These green house gases produce lots of environment problem. Furthermore, production of these ceramic particles is also costly. AA6061 aluminium alloy was taken as matrix material. Composite material was developed using the stir casting technique. Findings Microstructure results showed proper distribution of bagasse ash and MgO powder in the aluminium base metal matrix composite. It was notified from analysis that minimum corrosion loss and minimum porosity were found for Al/2.5% bagasse ash/12.5% MgO powder composite. For the same composition, hardness and thermal expansion were also observed better as compared to other selected compositions. However, density and cost of composites continuously decrease by increasing percentage of bagasse ash in development of composite. Originality/value Results showed about 11.30% improvement in tensile strength, 11.64% improvement in specific strength and 40% improvement in hardness by using bagasse ash as reinforcement with MgO powder in development of aluminium base composite.

Optimization of composite leaf spring for reduced weight and improved noise, vibration, and harshness in an electric vehicle

2020 ◽  
Vol 51 (7-9) ◽  
pp. 127-138
Author(s):  
Smaranika Nayak ◽  
Jatin Sadarang ◽  
Isham Panigrahi ◽  
Ramesh Kumar Nayak ◽  
Manisha Maurya
Keyword(s):  
Composite Material ◽  
Stress Concentration ◽  
Glass Fiber ◽  
Electric Vehicle ◽  
Software Package ◽  
Research Work ◽  
Leaf Spring ◽  
Corrosion Resistant ◽  
Commercial Software Package ◽  
Noise Vibration

In automobiles suspension system, laminated springs are widely used for the absorption of shock and vibration. These laminated springs account for approximately 10%–20% of the unsprung weight of the vehicle. It has been found that composite material is used to reduce the weight of the vehicle in order to obtain better efficiency. Therefore, in the current research work, composite material is used for the fabrication of laminated spring. Among the various types of glass fiber available, the C-glass fiber has been widely used due to its better corrosion resistant property. Commercial software package ANSYS is used to optimize the composite-laminated spring. The optimized leaf spring is then fabricated by the hand layup method. It was found that the spring with composite graduated leaf resulted in 40% reduction in weight than the spring with steel graduated leaf. Similarly, the stress concentration and deformation values are reduced by 76.39% and 50% in comparison with those of steel graduated leaf. The composite-laminated spring showed better damping property and also resulted in less transmission of force to the chassis of the vehicle. The noise induced by the composite-laminated spring is also reduced in comparison with steel graduated leaf. Finally, a composite-laminated spring is found to be lighter in weight and with better noise, vibration, and harshness in comparison with steel graduated leaf. Thus, it is found to be best suited for an electric vehicle.

A Research on the SiCp Reinforcing Cu-Base Composite Material's Cutting Performance

2011 ◽  
Vol 175 ◽  
pp. 116-120
Author(s):  
Yi Ping Zhang ◽  
Yi Yi Tao ◽  
Zuo Jiang
Keyword(s):  
Composite Material ◽  
Electron Microscope ◽  
Cutting Force ◽  
Cutting Speed ◽  
Cutting Process ◽  
Depth Of Cut ◽  
Dislocation Theory ◽  
Cutting Surface ◽  
Base Composite ◽  
Electron Microscope Analysis

The relationships among the n, ap , and f of the SiCp /Cu composite material produced by powder metallurgy and extrusion have been investigated. The cutting force F of this material is also discussed in this paper by the measuring of the three cutting factors of n, ap, and f, applying the dislocation theory and the electron microscope analysis of the cutting surface and sub-surface. The differences are analyzed between the SiCp/Cu composite materials, QSn6-6-3. H59-1and the copper cutting surface and the sub-surface. The forming of mechanism, the function of SiCp in the cutting process and the influence on the cutting surface quality are also analyzed. This research has shown: because the SiCp particles prevent the dislocation moving, the dislocation groups are formed on the SiC/Cu interface, and the stress concentration is produced, the typical brittle separation appears in the SiC/Cu composite material cutting process. In addition, the cutting force increases with the depth of cut and feed increasing and decreases while the cutting speed increases.

scholarly journals Proteomic study of Desulfovibrio ferrophilus IS5 reveals overexpressed extracellular multi-heme cytochrome associated with severe microbiologically influenced corrosion

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mohor Chatterjee ◽  
Yu Fan ◽  
Fang Cao ◽  
Aaron A. Jones ◽  
Giovanni Pilloni ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Microbiologically Influenced Corrosion ◽  
Extracellular Electron Transfer ◽  
Microbiological Corrosion ◽  
Microbial Corrosion ◽  
Gas Industry ◽  
Reliable Detection ◽  
Proteomic Study

AbstractMicrobiologically influenced corrosion (MIC) is recognized as a considerable threat to carbon steel asset integrity in the oil and gas industry. There is an immediate need for reliable and broadly applicable methods for detection and monitoring of MIC. Proteins associated with microbial metabolisms involved in MIC could serve as useful biomarkers for MIC diagnosis and monitoring. A proteomic study was conducted using a lithotrophically-grown bacterium Desulfovibrio ferrophilus strain IS5, which is known to cause severe MIC in seawater environments. Unique proteins, which are differentially and uniquely expressed during severe microbial corrosion by strain IS5, were identified. This includes the detection of a multi-heme cytochrome protein possibly involved in extracellular electron transfer in the presence of the carbon steel. Thus, we conclude that this newly identified protein associated closely with severe MIC could be used to generate easy-to-implement immunoassays for reliable detection of microbiological corrosion in the field.

Influence of Technological Process on Biodegradation of PVA/Waxy Starch Blends in an Aerobic and Anaerobic Environment

2008 ◽  
Vol 16 (4) ◽  
pp. 241-249 ◽  
Author(s):  
Markéta Julinová ◽  
Marie Dvořáčková ◽  
Jan Kupec ◽  
Jitka Hubáčková ◽  
Martina Kopčilová ◽  
...  
Keyword(s):  
Technological Process ◽  
Waxy Starch ◽  
Starch Blends ◽  
Aerobic And Anaerobic ◽  
Anaerobic Environment
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