CuNiMnSi合金的热加工性能研究
Study on Hot Workability of CuNiMnSi Alloy
王 轶, 郑 晶, 贾志华, 马 光
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作者单位：西北有色金属研究院 电子材料研究所, 陕西 西安 710016
中文关键字：CuNiMnSi； 析出相； 热加工； 性能； 断裂
英文关键字：CuNiMnSi; precipitated phase; hot working; properties; fracture
中文摘要：研究了CuNiMnSi合金的微观组织、相结构及合金的热加工性能。结果表明，该合金在晶界及晶内都有第二相析出，呈弥散分布状态，在晶界周围聚集，而晶内比较稀散。第二相主要为Ni3Si相，还有少量Ni31Sil2相。合金存在600～700 ℃中温脆性区，轧制成形受轧制温度、道次加工量等因素影响较大。
英文摘要：The microstructure, phase structure and hot workability of CuNiMnSi alloy were studied. The results show that the second phase is precipitated in grain boundary and intragranular of the alloy, the second phase is distributed by dispersion and aggregated around the grain boundary, while its distribution is rare and dispersed in intragranular. The second phase is mainly Ni3Si and a little Ni31Sil2. Medium-temperature brittle zone from 600 ℃ to 700 ℃ exists in alloy. Rolling forming has a great influence on rolling temperature, pass working rate and other factors.