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a method of strengthening materials by changing (decreasing) their average crystallite (grain) size (see: grain boundary), materjali tugevnemine keskmist tera/kristalli mõõdet muutes (vähendades) (vt terapiir)
grain-refinement hardening . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/grain-refinement%20hardening/1/eng (20.07.2026)