The effect of trace addition of RE on high-temperature strength and microstructure of ZL109 piston alloy was investigated by means of Tensile Testing, SEM, EPMA, etc.

• 作为以低成本提高现役活塞合金高温性能的初步探索,利用材料高温试验机、扫描电镜、电子探针等手段研究了加入微量混合RE对ZL109活塞合金高温强度和显微组织的影响。