| 单词 | blue brittleness |
| 释义 | > as lemmasblue brittleness blue brittleness n. Metallurgy brittleness that is sometimes found in steel at temperatures typically between about 200 and 350°C (high enough for a film of blue oxide to form on the surface).The brittleness manifests as a minimum in the ductility and impact strength as a function of temperature. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > steel > [noun] > brittleness blue shortness1886 blue brittleness1911 temper-brittleness1918 1911 H. Brearley Heat Treatm. of Tool Steel iii. 21 The instances in which defects can be traced to blue brittleness are numerous. 1959 Jrnl. Iron & Steel Inst. 191 100/2 It was found that the best heat treatment for reducing blue brittleness in 0·55% C steel was subcritical annealing at 550° C. 2002 Materials Lett. 57 371/2 It is these very fine dimples that lead to the blue brittleness. < as lemmas |
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