Corrosion College Essays Samples For Students

Introduction: All most all metals are unstable when exposed to air. This is because of the tendency of the metal to be converted into its oxidized form on reaction with air. When compared to zinc, iron has a greater tendency to form oxidized form and thus has greater susceptibility to corrosion. The ability of metals to react with air varies and this determines their relative stability. As zinc is much stable when compared to iron, it is used to galvanizing iron pipe, thus preventing contact of iron with air and water that contains dissolved air. Brass is an alloy ...

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Introduction
According to Richard Sennett, people are working in conditions where they have to cope with layering, flexibility among other new concepts. Jobs in the ‘New Economy’ offer new opportunities that can satisfy a worker’s needs but which cause oppression, physical and emotional disorientation to them. Employees offer loyalty and commitment while they lose values and personal traits that are necessary in the society. The first aim of this paper is to analyse and make a decision whether the modern way of working is too difficult to get a life. The second aim is ...

When designing various projects for a client, an engineer is concerned with different aspects of the design. For instance, the aesthetic value of the design is very important to the engineer. Other factors that concern the engineer are the durability of the product and the cost effectiveness in both the design and production processes. However, and without belittling the importance of these factors, safety is ultimately the major concern of the engineer. Safety as a factor is incorporated into all designs, for both the client and the environment (including other people who might not necessarily use the product but stand in ...

Executive Summary

Recently, the Middle East has experienced high rates of bad weather conditions that among others have caused sandstorms around the region. These conditions continue to affect various socio-economic activities with massive deadly consequences especially for airline companies (Seinfield and Spyros, 2006). For instance, in 2008, sandstorms caused low visibility conditions caused very many cars to pile up on the Dubai-Abu Dhabi border. It is estimated that around 25 people lost their lives in this incident. In late 2013, the same incident did not only cause injuries to a dozen people but also hampered activities around Dubai airport for three days.
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Introduction

For one to achieve success in any given casting practices, there must be a proper control in the variables required during the process. The variables may involve certain characteristics of the alloys, and metals used, the casting method, design of the mold, material of the die used, and the parameters used during processing. The casting quality is influenced by the cooling rate, gating systems, and the evolved gasses during the entire process. Precautions must be, therefore, taken to avoid defects during metal casting design. This paper also outlines the economic factors that are relevant and basic in casting operations.

Metal casting

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Structural Steel

Structural steels are the variety of steel customarily used for construction such as buildings, bridges and as reinforcements to concrete. It is used because of its strength and ductility (ability to deform substantially prior to failure). The form, shapes, and size of structural steels are dependent on the specific function that it will serve. There are several standards that must be followed when producing structural steels; these standards also include the specifications for the steel’s mechanical properties, chemical composition, specific cross section and shape profile (American Institute of Steel Construction np).
Structural steels have various chemical elements which ...

Article name: Lead levels in drinking water spike when copper and lead pipes are joined

http://news.wustl.edu/news/Pages/23098.aspx
In this article written by Diana Lutz talks about the harmful effects of lead if present in drinking water and how the replacement of the lead pipes to copper pipes can increase the lead content in water. Lead pipes when mixed with copper pipes, this leads to the increased concentration of lead contamination due to galvanic corrosion which is the process of corrosion wherein the zinc coating of the pipes is oxidised. According to the US environmental protection agency, the lead concentration in drinking water could be to a maximum of 15 parts per million. But the level ...

Copper wires have a low coefficient of thermal expansion; thermal expansion is the ability of metals to expand on heating and contract on cooling. Copper wires when used during the manufacturing stage they maintain stability and show little change of state when there are temperature variations in the process of manufacturing of materials (Kurzepa, Lekawa-Raus, Patmore, & Koziol, 2013). Copper wires are recyclable and can be used again in the process of manufacturing. Used wires of copper can be collected and recycled for use again because the metal is of high quality and does not lose quality easily. Copper wires ...

Structural steels are the variety of steel customarily used for construction such as buildings, bridges and as reinforcements to concrete. The form, shapes, and size of structural steels are dependent on the specific function that it will be used on. There are several standards that must be followed when producing structural steels; these standards also include the specifications for the steel’s mechanical properties, chemical composition, specific cross section and shape profile (American Institute of Steel Construction np).
Structural steels have various chemical elements which give its properties. It is very important that the components in making structural steels ...

INTRODUCTION

Background
A car jack is a device that lifts vehicles off the ground so that maintenance and repair can be carried out underneath the car. Available car jacks, however, are manually operated. They require much laborious physical effort on the part of the user. Such jacks present problems for the handicapped and elderly.

Aim of the design

The aim of this study is to deliver a high an efficient car jack to the end user. This project has been motivated by the need to determine whether the introduction of automation and keen material selection in a jack saves time and improves on its performance and ...

Abstract

Carbon capture is an essential approach for reducing greenhouse gas emissions. Different plants utilize various technologies in reducing carbon dioxide emission. Some of the conventional techniques employed include oxy-fuel, pre, and post-combustion carbon capture. These approaches have a high potential for capturing carbon dioxide. However, their massive initial and implementation costs have been a challenge to plants globally. Additionally, most of them are yet to experience large scale applications. Therefore, it is essential for research and development activities to be conducted. This can ensure a reduction in the cost of production. The carbon capture technologies differ in costs. This ...

British Petroleum is a multinational corporation that was founded in 1908. It initially had its single wells in the remote parts of Persia. The company slowly grew and within eight years it became one of the largest businesses in the world. It has been broadly divided into three main subsections that include oil exploration and production; gas, power, renewables and oil refining; and marketing section. All these departments work together to ensure that the company achieves its objectives. Since 1995, the company has been in the capable hands of John Browne, who has been its CEO until his untimely ...

Material Extraction of Dry Battery AA:

A typical alkaline dry AA cell comprises a cylindrical external case, cathode, anode, and electrolyte and separators. The external casing is made from nickel-plated steel and is lined with a separator to divide the anode and cathode. The separator is made of either a porous synthetic material or layered paper. On one end, the battery canister is sealed with an epoxy or asphalt sealant underlying a steel plate and at the other end with a brass rod driven through the cylinder. The rod is welded to a metallic end cap and passed via an outer plastic seal. Inside the ...

Burj Khalifa is the world’s tallest building and was designed by Skidmore, Owings & Merrill architects, who have been bestowed with the “Global Icon” award. The design of the high-performance building makes use of cutting edge technology and carries cultural and historical influences. The architects faced several challenges when building a tower of this height such as wind, heat, humidity, gravity and earthquake forces.
The essay looks at the advanced technical and engineering skills used to create Burj Khalifa and how a skyscrapers’ design should respect cultural values and make the best use of space utilities and add to ...

1.0 Introduction and Background Information
Nuclear power and energy has become very useful in the economics of the modern world. Whereas the energy can help to achieve enormous benefits, it cannot be disputed that the inherent hazards are potentially dangerous (Greenberg 63). These dangers are evoked by the nuclear wastes produced after the energy is produced and utilized (Strandberg 87). In principle, such waste is radioactive in nature implying that it remains active over a long period of time. As such, it becomes fundamentally vital to ensure that the nuclear waste management is concrete and undoubtedly reliable (Miller 84). ...

Introduction

A car is an automobile machine that has wheels driven by the engine. A car has four wheels the rotate to allow it to change positions from one part to the other. The components of a car involve the engine, body, wheels and steering for controlling the movement. The other minor parts of the car are the starter, headlights, backlights, windscreen, wipers, radiator, alternator, seats, safety belts, chassis, etc. different cars has varied engine performance depending on the model. Several types of cars exist in the market, and these include Isuzu, Toyota Mercedes, Mitsubishi, Honda, Landrover, BMW, etc.
Each ...

The primary idea of the article is to analyze whether premature pin failure is connected to cyclic fatigue. The main instruments used in the article are pin made from ph 13-8 Mo stainless steel and other elements that have an impact on the pin failure. According to the article, the first experiment showed that in one week of operation, the shear pin prematurely failed. The high tension in the flocculator drive is the main cause of the shear pin failure. The article is based on the evaluation of deflection, stress and fatigue of the shear pin. According to the ...

Q1:

There are four classes/or types of materials that are considered as listed below

- Ceramics and Glasses
- Composite materials
- Polymers
- Metal alloys
First generalized properties of the materials will be discussed, and then based on these properties one material will be selected for a specific application.
- Ceramics and Glasses
Ceramics and Glasses are inorganic, non-metallic materials consisting of metallic and non-metallic elements bonded with ionic and covalent bonds. These are high strength bonding gives special characteristics to these materials.

The typical properties of these materials are as:

- Low to moderate density compared to metals,
- High modulus of elasticity,
- Provide good strength at elevated level of ...

Human beings depend on air to survive. However, many human beings on many occasions take air for granted. They fail to realize that without the oxygen component of air that human beings breathe in, they would die in a few minutes. By definition, air refers to a mixture of gases that freely roams in the atmosphere. The air circles the earth and is held in place by gravity. The air mixture is comprised of gases such nitrogen, oxygen, carbon dioxide, rare gases like argon and water vapor. These gases are in different proportions with nitrogen having the highest proportion (78%).
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- Forearm fracture types for which plate fixation may be used

Forearm fractures according to the region

Fractures around the elbow:
- Radial head fractures
- Olecranon fractures

Wrist fractures

Ulnar shaft fractures
Both forearm fractures
Forearm fracture according to the type of fracture
Ulna, radius intact
radius, Ulna intact

Both bones fracture

All these groups can have single, wedge or complex fractures, and for all these groups of fractures open reduction internal fixation can be used.

In general these plates can be used for Ulna, radius fractures:

Locking plates 2.0
Dynamic compression plates 2.4
Universal fracture plate 2.4
Locking reconstruction plates 2.4
All these plates have different sizes which according ...

1.0 Introduction
For every proposed project, one of the most important considerations is the how the project shall impact on the environment. Environmental assessment is normally done by the concerned bodies and the project declared fit. However, if the proposed project has adverse effects on the environment, then, various considerations are put in place, including and not limited to relocating the project or completely stopping it. This paper puts into focus the environmental effects of the extension of the subway from Toronto to Vaughan. It describes the environments that shall be affected or might reasonably be affected, the ...