| 单词 | quench cracking |
| 释义 | > as lemmasquench cracking quench cracking n. fracture of a metal caused by thermal stresses during rapid cooling. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > qualities of metals > [noun] > imperfections honeycomb1530 roll mark1894 hair crack1896 season crack1909 season cracking1910 snowflake1919 hairline crack1923 shrinkage cavity1923 clink1925 shatter crack1930 stretcher strain1931 pimpling1940 stringer1942 quench cracking1949 society > occupation and work > industry > working with specific materials > working with metal > [noun] > hardening, tempering, or annealing > heating followed by quenching > fracture caused by quench cracking1949 1949 Progr. Metal Physics 1 237 When dealing with steels other than certain high carbon types which are extremely liable to quench cracking when martensitically hardened [etc.]. 1973 J. G. Tweeddale Materials Technol. I. vi. 172 There is usually a limiting rate of cooling from the outside for any given steel, beyond which it is impractical to go because too-rapid contraction from the outside may cause quench-cracking. 2005 Materials Sci. & Engin. 402 45/1 Quench cracking is normally associated with the heat treatment of ferritic steels with carbon contents greater than about 0.3 wt%. < as lemmas |
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