In order to improve the quality and to develop new kind of hot top in China, we explore experimentally the characteristics of friction welding joint of TZM Mo-base powder alloy and H11 mold steel.

• 结果表明,这两种材料在摩擦焊接过程中存在着摩擦面向H11模具钢侧转移的现象,这主要与两摩擦副在耐磨性和高温强度方面的差异有关;