When it comes to the metal fabrication industry, one of the most important factors is plain knowledge. By knowing what to expect with certain metals, how to choose the proper metal for your project, and so forth, you can ensure successful results. With the proper knowledge, your fabricated metal can experience all sorts of deformation. One common type of metal deformation is known as creeping, and it can be devastating to the overall quality and structure of metal.
Continue reading to learn more about metal creeping, including the 3 stages it undergoes as the deformation progresses, as well as, what you can do to prevent this type of common metal damage.
Metal Creep Deformation
As mentioned, metal creep is a type of deformation that metals can experience. Such deformation can be caused by a wide range of factors, one of the most common being excessive stress below the metal’s yield level, and elevated levels of heat. You see, metal is chosen for particular applications based on the properties they offer. One of the most sought-after metal properties is yield strength, which refers to how well a metal can maintain its structural integrity and performance under stress.
The point at which a metal begins to bend or deform as a result of stress is when the metal has reached its yield strength capacity. However, there is an aggravating phenomenon that can cause metal to bend or deform before it reaches it’s yield strength limit. This is known as metal creeping. Metal creeping is something that should be prevented at all costs, as it can both devastate the metal structure, as well as, pose several hazards and dangerous conditions. It is vital to choose the right metal for your intended application to prevent the dangers of metal creeping. You can identify the signs of metal creep in 3 different stages.
Metal Creeping Stages:
Stage 1 – Primary Metal Creep. This is the first part of the metal deformation process in which elastic corrosion begins to develop. This type of deformation is not necessarily permanent, so long as it is corrected upon early discovery, but if it goes on without correction, permanent deformation will occur.
Stage 2 – Secondary Metal Creep. This phase of the metal creeping process begins once the stress rate has stabilized, and continues on consistently. Although this stage of the process often develops more slowly than the others, it is permanently damaging.
Stage 3 – Tertiary Metal Creep. This stage of the metal deformation process occurs when micro-structural damage finally happens. At this point, the stress rate is not only consistent, but also increasing more and more. Eventually, the metal structure will breakdown and experience full failure.
How to Prevent Metal Creep:
➲ Select the proper metal material for the intended application.
➲ Reduce the working temperatures applied to the metal.
➲ Decrease the continual load on the metal.
➲ Select a metal with larger grains.
➲ Choose a trusted metal fabrication company for professional consultation.
Get a Free Quote for Metal Sales and Fabrication
Call JL Squared Inc. at 317-783-3340 for custom metal sales and raw materials in Indianapolis, Indiana. We provide a wide range of services and products, including press brake, shearing, tube bending, water jet cutting, steel, aluminum, and even welding supplies. In fact, we are an Authorized Distributor of Indiana Oxygen Gases! Above all, we specialize in metal rolling services. Contact us today at 317-783-3340 to request a free quote or information about our Indianapolis metal fabrication shop.