Catatan: Terjemahan untuk entri ini sedang dalam peninjauan kualitas, sehingga sebagian konten untuk sementara hanya ditampilkan dalam bahasa Inggris.
Entri ini belum diterjemahkan ke bahasa Anda, sehingga versi aslinya ditampilkan di bawah.
grain boundary
This term is a specialized technical expression used primarily in materials science, metallurgy, and crystallography. It describes the structural discontinuity where two crystals of the same material meet but are oriented in different directions. Because these boundaries are regions of high atomic disorder, they often act as sites for impurity segregation or the initiation of corrosion.
In a practical engineering context, the density and orientation of these boundaries directly influence the mechanical properties of a metal, such as its hardness and ductility. For instance, smaller grains result in more boundaries, which typically increases the strength of the material through a process known as grain-boundary strengthening.
Meanings
Examples
The impurity atoms tend to segregate at the grain boundary.
Look at this micrograph and tell me if the grain boundary is clearly visible.
I wonder if the crack initiated at a high angle grain boundary.
Grain boundary migration occurs during the annealing process to reduce total energy.
We need to analyze how the grain boundary affects the electrical conductivity of the ceramic.
The material failed due to intergranular corrosion along the grain boundary.
Is the grain boundary energy higher in this alloy than in pure iron?
The dislocation was pinned by the grain boundary, increasing the yield strength.