In fracture mechanics, intergranular fracture, intergranular cracking or intergranular embrittlement occurs when a crack propagates along the grain boundaries of a material, usually when these grain boundaries are weakened. [1]

In materials science, intergranular corrosion (IGC), also known as intergranular attack (IGA), is a form of corrosion where the boundaries of crystallites of the material are more susceptible to corrosion than their insides.

2021年4月1日 · Intergranular corrosion (IGC), sometimes referred to as intergranular attack (IGA), is a preferential or localized corrosion proceeds alone the grain (crystal) boundaries or immediately adjacent to the grain boundaries. In contrast, the majority of …

"Intergranular" or 'intercrystalline" means between grains or crystals. As the name suggests, this is a form of corrosive attack that progresses preferentially along interdendritic paths (the grain boundaries).

2024年7月19日 · Intergranular fracture is the propagation of cracks along the grain boundaries of a metal or alloy. It is a fracture that follows the grains of the material. Intergranular fractures travel along the grain boundaries, rather than through the actual grains.

Intergranular corrosion is localized attack along the grain boundaries, or immediately adjacent to grain boundaries, while the bulk of the grains remain largely unaffected.

2010年4月7日 · Intergranular corrosion (IGC) is a localized corrosion where a narrow path is preferentially corroded along the grain boundaries of metals or alloys. You might find these chapters and articles relevant to this topic.

Fortunately, an intergranular attack requires specific circumstances to occur and, in some cases, the damage is reversible. This guide will discuss what intergranular corrosion is, when it occurs, and best practices to avoid it or minimize the damage caused by an intergranular attack.

2024年7月19日 · What Does Intergranular Corrosion (IGC) Mean? This is a corrosion type that attacks the boundaries of the metal crystallites, as opposed to attacking the surface of the metal. Intergranular corrosion can also be referred to as intergranular attack under a condition known as grain boundary depletion.

2023年2月11日 · Intergranular corrosion occurs when the dissolution speed of grain boundary is much higher than that of grain itself in some environments. It is selective local corrosion along grain boundary. Most metals and alloys are polycrystalline and many grain boundaries are on …