用感应熔炼和电渣重熔制备合金锭，将8种热处理工艺制备的刀背材料切下3个5*5*20mm的长条状抗弯试样和3个10*10*55mm的V口冲击试样，分别进行弯曲实验和夏比摆锤冲击实验，结果取平均值。

The alloy ingots were prepared by induction melting and electroslag remelting. Three 5 * 5 * 20mm long strip bending specimens and three 10 * 10 * 55mm V-shaped impact specimens were cut from the knife back materials prepared by eight heat treatment processes. The bending test and Charpy pendulum impact test were carried out respectively, and the results were taken as the average value.