Web1 day ago · To investigate the grain boundary segregation and precipitation behavior of boron, a B-containing low-C steel (B-LC steel) was designed with the composition … WebThere are two main types of grain boundary segregation (Faulkner, 1996 ). The first is Gibbs equilibrium segregation, which is caused by misfitting impurity atoms seeing energy benefits from sitting on a disordered grain boundary plane …
Strengthening Effect of Nb on Ferrite Grain Boundary in X70 Pipeline Steel
WebJan 29, 2024 · Grain boundary segregation (GBS) of boron and microstructure evolution in IF steel during the process of thermoplastic deformation at different strain rates were … In materials science, a grain boundary is the interface between two grains, or crystallites, in a polycrystalline material. Grain boundaries are two-dimensional defects in the crystal structure, and tend to decrease the electrical and thermal conductivity of the material. Most grain boundaries are preferred … See more It is convenient to categorize grain boundaries according to the extent of misorientation between the two grains. Low-angle grain boundaries (LAGB) or subgrain boundaries are those with a misorientation less … See more The excess volume is another important property in the characterization of grain boundaries. Excess volume was first proposed by Bishop in a private communication to … See more Grain boundaries are the preferential site for segregation of impurities, which may form a thin layer with a different composition from the bulk. For example, a thin layer of silica, … See more A boundary can be described by the orientation of the boundary to the two grains and the 3-D rotation required to bring the grains into coincidence. Thus a boundary has 5 … See more The energy of a low-angle boundary is dependent on the degree of misorientation between the neighbouring grains up to the transition to high … See more The movement of grain boundaries (HAGB) has implications for recrystallization and grain growth while subgrain boundary (LAGB) movement strongly influences See more Grain boundaries can cause failure mechanically by embrittlement through solute segregation (see Hinkley Point A nuclear power station) but they also can detrimentally affect … See more can copper water pipes be painted
Cyclic stress response and microcrack initiation mechanism of …
WebApr 15, 2024 · Grain boundaries are essentially a wall of dislocations. They hinder movement. If grain growth is limited, a higher number of small grains will result. In terms … WebMar 19, 2024 · Grain boundaries are one of the most prominent defects in engineering materials separating different crystallites, which determine … WebFeb 6, 2024 · Grain boundary diffusion is particularly important in understanding the stability and properties of nanocrystalline metals. For the particular case of stainless steels, diffusion, specifically chromium diffusion along grain boundaries plays an important role in the corrosion behavior. fish market in west memphis