A procedure or process by which the surface layer of iron or steel is hardened while the underlying metal remains unaltered, as by heating in a…
| 单词 | θ209370 |
| 释义 | society > occupation and work > industry > working with specific materials > working with metal > [noun] > hardening, tempering, or annealing > other types of hardening (5) case-hardening1666 A procedure or process by which the surface layer of iron or steel is hardened while the underlying metal remains unaltered, as by heating in a… precipitation hardening1926 hardening of an alloy by heat treatment that causes the precipitation from solid solution of crystals of a solute phase; a strengthening process… martempering1943 A method of tempering steel that reduces its tendency to crack or distort, by rapid quenching to a temperature just above that at which martensite… shot-peening1944 the use of a stream of hard metal particles directed against a metal part to harden and strengthen its surface. marquenching1947 A process similar to martempering but with the constant-temperature stage kept too short to allow isothermal transformation. Sometimes also: = martemp… |
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