Oil spills and other environmental pollution, including low level leaks from underground pipes and storage tanks, could be quickly and easily spotted in the future using colour coded bacteria.

Recently, the galvanic or sacrificial anodes are made by using alloys of zinc, magnesium and aluminium. The current capacity and consumption rate of these alloys are superior for cathodic protection than iron. Galvanic anodes are designed and selected to have a more "active" voltage than the metal of the structure (typically steel). The galvanic anode continues to corrode, consuming the anode material until eventually it must be replaced.

Metal dowels and cramps were often incorporated in traditional masonry structures to secure stones, such as copings, parapets and cornices, that might otherwise be prone to movement or displacement. They were also widely used in ordinary ashlar walls to tie relatively thin stone facings back to the core. Dowels and cramps were also embedded in the facing itself to help maintain its structural integrity.

Materials known as thermoplastic fiber composites can be replaced less-suitable materials in stressed load-bearing structures and crash components in automobiles.

The diamond-like carbon has subsequently withstood endless in vitro tests in several manufacturers’ laboratories and has shown itself to be well tolerated by human tissue, extremely hard wearing, and resistant to the relatively aggressive environment in the human body. Despite this, when DLC-coated joints were first implanted into human patients, serious problems arose after only a few years. The DLC coatings were not worn away, but rather they detached from the implant material for no apparent reason.

A newly developed surface preparation process, bristle blasting is presented that can satisfy all of the tasks in a single step. Like grit blasting, the bristle blasting process is an impact/crater-formation based technique that repeatedly strikes the target surface with sufficient kinetic energy to remove contamination and expose a fresh, consistently textured surface.

Using MEA as a sweetening agent, amine plants always exhibit some degree of corrosion. The latter is minimized by keeping the amine clean, holding acid gas loading within specifications, operating the still at the lowest temperature possible and maintaining a regular testing program.

Biodiesel has become a popular fuel. It is worldwide production now exceeding 10 million tons per year. Yet like all energy sources, biodiesel has its share of drawbacks.

The removal of one element from a solid solution alloy is often called leaching. The gradual loss of zinc from brass (dezincification) is perhaps the most well known example of this type of corrosion, but aluminium can also be leached from aluminium bronzes (dealuminification) and nickel from 70/30 Cupronickel alloys (denickelification).

Metal loss anomalies can be introduced at all stages of a pipeline’s life – during manufacturing, in construction or while in service through material defects, gouges, corrosion, etc. Metal loss anomalies are characterised by an area of pipe wall with a measurable reduction in its thickness.

Oil Rushing into the Kalamazoo River
Federal regulators (Washington) said that corrosion tests had done in 2009, found “metal loss anomalies” along the pipeline that sent thousands of gallons of oil rushing into the Kalamazoo River that week.

Without proper mechanical and chemical deaeration, oxygen in the feed water  enters the boiler. Much is flashed off with the steam; the remainder can attack boiler metal.

Corrosion may be produced general attach over a large metal surface or it may result in pinpoint penetration of the metal. Corrosion is a relevant problem caused by water in boilers. Corrosion can be of widely varying origin and nature due to the action of dissolved oxygen, to corrosion currents set up as a result of heterogeneities on metal surfaces, or to the iron being directly attacked by the water.

TesTex provides pipeline scanning services for piping that is above ground and uninsulated. The piping can be painted or have a coating and still be scanned.