新型复合细化剂对ZL104组织和性能的影响

Effect of New Compound Refiner on Microstructure and\=Mechanical Properties of ZL104 Alloy

研究了新型复合细化剂对ＺＬ１０４合金组织和性能的影响，该细化剂使ＺＬ１０４合金的铸造晶粒由４０００～５０００μｍ细化到２００～３００μｍ，同时共晶Ｓｉ相由５０μｍ×２μｍ的长条细化到１μｍ左右的圆点，合金的力学性能明显提高。

The effect of new compound refiner on microstructure and mechanical properties of ZL104 alloy was studied. It was found that the grain size was refined from 4 000￣5 000 m to 200￣300 m, the eutectic silicon was modified from lamellar shape of size 50 m2 m to spherical shape with 1 m diameter. The mechanical proerties of the alloy was improved significantly.\=