Corrosion

Definition of Corrosion

Corrosion is defined as a refined metal that is naturally converted to a more stable form such as its hydroxide or sulphide state. Metal corrodes when it reacts with another substance such as oxygen, hydrogen or bacteria. Corrosion can also happen when metals are placed under too much stress causing the material to crack. Corrosion leads to deterioration of the material.

Stainless steel is highly corrosion resistant, making it suitable for use in environments where exposure to moisture, chemicals, or harsh conditions such as salt water is expected.

In this section you can find newsitems related to all types of corrosion such as stress corrosion cracking, intergranular corrosion, pitting, and corrosion fatigue. If you wish to include your news release on our website and email newsletter, please feel free to contact the editor.

Wind turbines to be built at Tornio site

Outokumpu will be participating in the implementation of a wind park in Tornio, Finland.

Sandvik demonstrates capability at Tube 2010

Sandvik Materials Technology will be displaying a comprehensive range of tubular and bar products at Tube 2010, including its material grade introductions.

Siemens received order from Dneprospezstal

Siemens VAI Metals Technologies has received an order from JSC Electrometallurgical plant Dneprospezstal to supply a new electric arc furnace, complete with water treatment plant for its no 3 steel works.

Molybdenum added to the LME

As of 17 March 2010, the London Metal Exchange (LME) began trading in cobalt and molybdenum, commodities used in everything from jet engines to stainless steel.

Low residual stress U-Bend tubing

RathGibson, a manufacturer of welded, welded and drawn, and seamless stainless steel, nickel, and titanium tubing, now has the capability to control the residual stress levels in U-Bend tubing for Stress Corrosion Cracking (SCC) alloys used in SCC environments.

Tech-Cool® 35052

Chemetall has launched its Tech-Cool® 35052, a premium-grade, chlorine EP-activated, heavy-duty, semi-synthetic metalworking fluid designed for use with cast and wrought aluminum alloys, stainless steels, titanium, and high-nickel alloys.

Plymouth Tube attains dual nadcap accreditation

Plymouth Tube Co.'s Salisbury Mill has attained Nadcap accreditation for both heat treating and material testing laboratories.

Langley Alloys acquires

Langley Alloys (North Staffordshire, England) has announced the acquisition for an undisclosed sum of National Metal Distributors Inc. (NMD), based in Vancouver, Washington State, USA.

Questek wins three SBIR Phase 1 awards

QuesTek Innovations LLC has been awarded three Phase I Small Business Innovation Research (SBIR) projects to design and develop new alloys for the U.S. Department of Energy and the Office of Naval Research.

Hyper-duplex wireline

Sandvik Materials Technology has launched its hyper-duplex wireline for use in wells with extreme chloride environments.


Corrosion can be a big problem because it can cause significant damage and deterioration to various materials, particularly metals. We have listed below several reasons why corrosion is a significant concern:

Structural Integrity: Corrosion weakens the structural integrity of materials. When metals corrode, they lose their strength and load-bearing capacity, which can lead to failures and collapses in infrastructure, buildings, bridges, pipelines, and other critical structures.

Economic Impact: Corrosion imposes substantial economic costs. The direct expenses associated with corrosion include repairs, replacements, and maintenance of corroded structures and equipment. Additionally, there are indirect costs such as production losses, decreased efficiency, and increased energy consumption due to the effects of corrosion on industrial processes and machinery.

Environmental Consequences: Corrosion can have adverse environmental effects. For example, in the case of pipelines, corrosion can lead to leaks and spills of hazardous substances, causing soil and water pollution and damaging ecosystems.

Health and Safety Risks: Corrosion can create health and safety risks in various ways. For instance, when corrosion affects pipelines or storage tanks carrying toxic substances, it can lead to leaks or releases that endanger the health of workers, communities, and the environment.

Maintenance and Downtime: Corrosion necessitates regular maintenance and inspection programs to detect and mitigate its effects. This requires significant time, effort, and financial resources. Additionally, when corrosion-related issues arise, it often requires shutting down operations, causing downtime and productivity losses.

Given these reasons, it is crucial to understand and address corrosion through preventive measures, protective coatings, corrosion-resistant materials, regular inspections and testing (ASTM B117), and appropriate maintenance practices to mitigate its impact and ensure the longevity and safety of structures and equipment.