粒りゅう界かい

noun

grain boundary

Technical term in materials science and metallurgy for the interface between two grains in a polycrystalline material.

• 金きん属ぞくの粒りゅう界かいは腐ふ食しょくが起おこりやすい。

  Grain boundaries in metals are susceptible to corrosion.

• 粒りゅう界かい拡かく散さんは材ざい料りょうの強きょう度どに影えい響きょうを与あたえる。

  Grain boundary diffusion affects the strength of materials.