摘要
研究了加入镧或钇（加入量为０．０５％～０．３％）和不加镧钇的ＱＢｅ１．９合金性能的差别。采用相同的加工工艺加工的含镧和钇的ＱＢｅ１．９和不含镧和钇的ＱＢｅ１．９合金的样品，然后观察和检测三种合金的质量和性能。结果表明，镧、钇的加入，能净化合金，增加流动性和造渣能力，提高合金铸锭质量。钇的加入能提高合金的延伸率，改善冷加工性能，同时可以防止合金产生过时效现象。镧的加入可提高合金淬火状态和冷加工状态的力学性能。镧和钇的加入，对ＱＢｅ１．９合金的最终性能影响不明显。
The difference of QBe1. 9 alloy proporties caused by the addition of La and Y(0. 05%￣0. 3%) was studied. Results show that the addition of La and Y is favorable to the purification and exhausting , so as to reduce the impurities in the alloy. High flowability , high density and high quality QBe1. 9 alloy were obtained. The mechanical proporties of QBe1. 9 alloy at quenching state and cold-working state are improved. On the other hand, the addition of Y can prevent the over-aging of the alloy. The proporties of La or Y doped QBe1. 9 alloy obtained are presented: σ_b= 1156￣1264 MPa δ_5= 7. 5% ￣ 12. 5% , E= 121030￣ 125440 MPa, which are almost the same as these of QBe1. 9 alloy without La and Y.
出处
《中国稀土学报》
CAS
CSCD
北大核心
1996年第1期90-92,共3页
Journal of the Chinese Society of Rare Earths
