met. |
熄灭; 猝熄; 抑制; 阻尼; 断开; 平息 (【技】淬火:将钢材加热并奥氏体化后,再以大于临界冷却速度的速度快速冷却,即可使过冷奥氏体转变为马氏体,这种操作叫做淬火。淬火的目的是:经淬火和随后的回火获得良好的力学性能;改善钢的一些物化性能;为下一步热处理做好准备。 • ① A thin piece of steel such as a small tool or needle can be quenched in water and will give uniform properties throughout its section. 一个细小的钢件,例如一个小型工具或一根针,可以在水中淬火,并且在整个断面上获得均匀的特性。② If a massive block of steel is heated and quenched the interior of such a block will cool fairly slowly, despite the rapidity of cooling on the outside. 如果将一大块钢加热,然后淬火,那么,尽管这块钢外表冷却迅速,但其内部冷却却十分缓慢。) |