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研究了0~1.2 T的直流磁场对长周期结构增强Mg_(97)Y_2Cu_1合金凝固组织、结晶织构及力学性能的影响。结果表明:直流磁场可以细化合金的初生相,减少α-Mg基体中Y元素的含量。随着磁场强度的增加,{1 1 2 0}面织构先加强后减弱,其转折点为0.9 T,{10 10}面织构逐渐增强;合金的铸态抗拉强度和伸长率总体上逐渐提高,当磁场强度为0.9 T时,合金的综合力学性能最好,其抗拉强度和伸长率较无磁场处理的试样相比分别提高了96.6%和61.1%。
The effects of DC magnetic field of 0 ~ 1.2 T on the solidification microstructure, texture and mechanical properties of Mg_ (97) Y_2Cu_1 alloy reinforced with long periodicals were studied. The results show that the DC magnetic field can refine the primary phase of the alloy and reduce the content of Y in the α-Mg matrix. With the increase of magnetic field intensity, the texture of {1 1 2 0} surface first weakened and then weakened, with a turning point of 0.9 T and a texture of {10 10} plane gradually increasing. The as-cast tensile strength and elongation of the alloy generally gradually When the magnetic field strength is 0.9 T, the mechanical properties of the alloy are the best. The tensile strength and elongation of the alloy increase by 96.6% and 61.1% respectively compared with those without the magnetic field treatment.