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研究了凝固过程中局部加载行波磁场对ZL205A合金薄壁件缩孔、缩松和力学性能的影响。利用扫描电子显微镜对制备试样的显微组织进行分析,采用电子万能材料试验机对铸件力学性能进行测试。结果表明:与相同条件下获得的未施加行波磁场的铸件进行对比,施加行波磁场的铸件缩孔、缩松缺陷得到大幅改善;经过T6热处理后,抗拉强度、屈服强度、延伸率分别由436.61 MPa、390.22 MPa、3.29%提高到470.24 MPa、416.97 MPa、4.15%,抗拉强度和屈服强度分别提高了33.63 MPa、26.75 MPa,延伸率提高了26.14%。
The effect of local loading traveling wave magnetic field on the shrinkage, shrinkage and mechanical properties of ZL205A thin-walled alloy was investigated during solidification. The microstructure of the prepared samples was analyzed by scanning electron microscopy, and the mechanical properties of the castings were tested by electronic universal material testing machine. The results show that compared with the castings with no traveling magnetic field applied under the same conditions, the shrinkage defects and shrinkage defects of castings with traveling magnetic field are greatly improved. After T6 heat treatment, the tensile strength, yield strength and elongation are respectively From 436.61 MPa, 390.22 MPa and 3.29% to 470.24 MPa, 416.97 MPa and 4.15%, the tensile strength and yield strength increased by 33.63 MPa and 26.75 MPa respectively, and the elongation increased by 26.14%.