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quench (【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。) |
