Materials Failure Analysis

Plastic deformation is a permanent change in the shape of a material, typically caused by excessive stress. It is not a type of material failure, but rather a precursor to failure.

Fatigue failure is caused by the repeated application and removal of stress, which can lead to the formation of cracks and eventual failure.

Creep strength is the material's resistance to deformation under sustained load at high temperatures.

Corrosion failure is primarily caused by electrochemical reactions between the material and its environment, leading to the formation of corrosion products.

Finite element analysis is a computational method used to simulate the behavior of materials under various loading conditions. It is not typically used in materials failure analysis, which focuses on the examination of failed components to determine the cause of failure.

Fractography is the study of fracture surfaces to identify the type of failure mechanism. It involves examining the surface features of the fracture to determine whether it was caused by fatigue, corrosion, creep, or other mechanisms.

Overloading the material is a common cause of materials failure. It can lead to excessive stress and strain, which can result in various types of failure, such as fatigue, creep, or brittle fracture.

The primary goal of materials failure analysis is to determine the cause of failure in order to prevent future failures and improve the performance and safety of materials and structures.

Ductile fracture is a type of ductile failure that occurs in materials that exhibit significant plastic deformation before failure. It is characterized by the formation of dimples on the fracture surface.

Intergranular corrosion is caused by the selective leaching of one element from a solid alloy, resulting in the formation of a grain boundary groove.

Fatigue wear is a type of wear failure that is caused by repeated loading and unloading, similar to fatigue failure. It is not a common type of wear failure.

Stress corrosion cracking is caused by the combined action of tensile stress and a corrosive environment, leading to anodic dissolution of the metal at the crack tip.

Corrosion wear is a type of wear failure that is caused by the combined action of wear and corrosion. It is not a common type of mechanical wear.

Hydrogen embrittlement is caused by the absorption of hydrogen into the metal, which can lead to a reduction in ductility and an increase in susceptibility to brittle fracture.

Destructive testing is a type of testing that involves the destruction of the material or component being tested. It is not a common type of NDT used in materials failure analysis.