钢的淬火是将钢加热到临界温度Ac3（亚共析钢）或Ac1（过共析钢）以上温度，保温一段时间，使之全部或部分奥氏体1化，然后以大于临界冷却速度的冷速快冷到Ms以下（或Ms附近等温）进行马氏体（或贝氏体）转变的热处理工艺。通常也将铝合金、铜合金、钛合金、钢化玻璃等材料的固溶处理或带有快速冷却过程的热处理工艺称为淬火。
感应淬火 [机] induction hardening ; induction hardened
淬火冷却 quench ; Abschrecken ; quench cooling
淬火钢 quenched steel ; [材] hardened steel
水淬火 water quenching
淬火变形 [机] quenching distortion ; quenching strain ; quench distortion
等温淬火 isothermal hardening
空气淬火 [机] air quenching ; air hardening
油淬火 [机] oil quenching ; [机] oil hardening ; oil-quench ; oil-hardened
盐浴淬火 salt bath quenching ; [机] salt bath hardening
The quenching is absolutely necessary to destroy the coarse microstructure of cast alloys firstly.
为了细化TiAl基合金粗大的铸态组织，高温淬火是必要的。
参考来源 - 热处理细化铸态TiAl基合金显微组织的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
三个过程：它们是淬火、回火和退火。
齿轮齿形采用磨齿加工，齿面采用智能控制渗碳淬火技术，齿轮的强度高、韧性和耐磨性好。
Employing abrasive machining for the form of the gear and intellective-control carburizing and quenching technology for the surface, the gear is with high intensity, strong tenacity and wearability.
但油淬情况就不是如此，因为油淬时在淬火临界阶段零件表面的温度可能仍然很高。
This is not true in oil quenching, when the surface temperature may be high during the critical stages of quenching.
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