Corrosion - The Current Scoop on Galvanic Corrosion
Connecting dissimilar metals in an electrolyte creates a direct current (DC) “battery” and the scientific explanation as to why galvanic corrosion occurs has to do with things like migrating electrons...
Corrosion - MCF - Marine Corrosion Explained
An enlightened approach to materials selection, protection and corrosion control is needed to reduce the increasing cost to industry of marine corrosion. Thse notes have been compiled to help marine ...
Corrosion - Corrosion
This article outlines some of the causes and cures of metal destruction in the marine environment. New South Wales-based naval architect and wooden boat builder Christopher Murman delves into the topi...
Corrosion - Corrosion, Zincs & Bonding
Corrosion is a process of metal deterioration. There are two kinds of corrosion of significance to the use of metals on boats: Mechanical corrosion is...l
Corrosion - Marine stainless steel corrosion
The term “stainless steel” covers over 500 different steel alloys of which only 2 are recommended for marine use. These are 304 stainless and 316 stainless
Corrosion - Beneteau Iron Keel Restoration
The best way to treat an iron keel that is rusting is to sandblast the entire surface and apply an epoxy based coating system. But that's not always feasible or desirable.
Corrosion
Corrosion is the gradual destruction of materials (usually metals) by chemical reaction with their environment. In the most common use of the word, this means electrochemical oxidation of metals in re...
Thermal depolymerization
Thermal depolymerization (TDP) is a depolymerization process using hydrous pyrolysis for the reduction of complex organic materials (usually waste products of various sorts, often biomass and plastic)...
Sacrificial anode
A galvanic anode is the main component of a galvanic cathodic protection (CP) system used to protect buried or submerged metal structures from corrosion.They are made from a metal alloy with a more "a...
Vibration fatigue
Vibration fatigue is a mechanical engineering term describing material fatigue, caused by forced vibration of random nature. An excited structure responds according to its natural-dynamics modes, whic...
Uncontrolled decompression
Uncontrolled decompression is an unplanned drop in the pressure of a sealed system, such as an aircraft cabin, and typically results from human error, material fatigue, engineering failure, or impact,...
Buckling
In science, buckling is a mathematical instability, leading to a failure mode. Theoretically, buckling is caused by a bifurcation in the solution to the equations of [[Mechanical equilibrium|static eq...
Synthetic biodegradable polymer
Many opportunities exist for the application of synthetic biodegradable polymers in the biomedical area particularly in the fields of tissue engineering and controlled drug delivery. Degradation is im...
Decarburization
Decarburization (or decarbonization) is the process opposite to carburization, namely the reduction of carbon content. The term is typically used in metallurgy, describing the reduction of the content...
Cover meter
A cover meter is an instrument to locate rebars and measure the exact concrete cover. Rebar detectors are less sophisticated devices that can only locate metallic objects below the surface. Due to the...
Crocodile cracking
Crocodile cracking, also called fatigue cracking or alligator cracking, is a common type of distress in asphalt pavement. It is usually studied under the transportation section of civil engineering. C...
Metal dusting
Metal dusting is "a catastrophic form of corrosion that occurs when susceptible materials are exposed to environments with high carbon activities." The corrosion manifests itself as a break-up of bulk...
Fatigue (material)
In materials science, fatigue is the weakening of a material caused by repeatedly applied loads. It is the progressive and localized structural damage that occurs when a material is subjected to cycli...
Corrosion fatigue
Corrosion fatigue is fatigue in a corrosive environment. It is the mechanical degradation of a material under the joint action of corrosion and cyclic loading. Nearly all engineering structures experi...
Impact (mechanics)
In mechanics, an impact is a high force or shock applied over a short time period when two or more bodies collide. Such a force or acceleration usually has a greater effect than a lower force applie...
Polymer degradation
Polymer degradation is a change in the properties—tensile strength, color, shape, etc.—of a polymer or polymer-based product under the influence of one or more environmental factors such as heat, ligh...
Burnishing (metal)
Burnishing is the plastic deformation of a surface due to sliding contact with another object. Visually, burnishing smears the texture of a rough surface and makes it shinier. Burnishing may occur on ...
Stabilizers for polymers
Stabilizers for polymers are used directly or by combinations to prevent the various effects such as oxidation, chain scission and uncontrolled recombinations and cross-linking reactions that are caus...
Chloride
The chloride ion /ˈklɔraɪd/ is the anion (negatively charged ion) Cl. It is formed when the element chlorine (a halogen) gains an electron or when a compound such as hydrogen chloride is dissolved in ...
Chemically assisted degradation of polymers
Chemically assisted degradation of polymers is a type of polymer degradation that involves a change of the polymer properties due to a chemical reaction with the polymer’s surroundings. There are man...
Photo-oxidation of polymers
Photo-oxidation is the degradation of a polymer surface in the presence of oxygen or ozone. The effect is facilitated by radiant energy such as UV or artificial light. This process is the most signifi...
Pitting corrosion
Pitting corrosion, or pitting, is a form of extremely localized corrosion that leads to the creation of small holes in the metal. The driving power for pitting corrosion is the ...
Versailles rail accident
The Versailles rail accident occurred on 8 May 1842 in the cutting between Meudon and Bellevue stations on the railway between Versailles and Paris. Following King Louis Philippe I's celebrations at t...
UV degradation
Many natural and synthetic polymers are attacked by ultraviolet radiation, and products using these materials may crack or disintegrate if they are not UV-stable. The problem is known as UV degradatio...