释义 |
DictionarySeecasehardeningcase hardening
case hardening[′kās ‚härd·ən·iŋ] (geology) Formation of a mineral coating on the surface of porous rock by evaporation of a mineral-bearing solution. (materials) A condition of stress and set in dry lumber characterized by compressive stress in the outer layers and tensile stress in the center or core. (metallurgy) Process of carburizing low-carbon steel or other ferrous alloy for making the outer layer (case) harder than the core. |