quenched martensite

例句：

1. 1.The steel was quenched to harden it before being machined.
   钢材在加工前被淬火以变硬。
2. 2.Quenched martensite is a common material for cutting tools due to its high hardness and wear resistance.
   淬火马氏体因其高硬度和耐磨性而常用于切削工具材料。
3. 3. In the manufacturing process, quenched martensite is often used as a heat treatment to improve its strength and toughness.
   在制造过程中，淬火马氏体通常用作热处理以提高其强度和韧性。