decohesion en · NOUN
Etymology
Etymology tree Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin dē-der. English de- Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Latin con- Latin haereō Latin cohaereō Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin cohaesiōlbor. French cohésionbor. English cohesion English decohesion From de- + cohesion.
Meanings
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A loss of cohesion
While grain boundary enrichment is often attributed to equilibrium segregation effects, most models of embrittlement consider either the energetics of decohesion or the equilibrium adsorption at the boundary, but not both phenomena together.
2015, Michael A. Gibson, Christopher A. Schuh, “Segregation-induced changes in grain boundary cohesion and embrittlement in binary alloys”, in Acta Materialia, volume 95, pages 145–155: