摘要：激光定向能量沉积增材修复技术具有时间短、效率高、成本低、力学性能好等优点，具有很大的发展潜力。采用Al - 7.5Mg -0.3Sc -0.28Zr 作为修复材料对轨道交通用5083-H112铝合金进行激光修复实验，得到了致密、无缺陷的修复试样，并对其组织和性能进行研究，探讨了激光修复铝合金的可行性。结果表明，熔合线...
3Sc-0. 28Zr was used as the repair material to conduct laser repair experiments on 5083-H112 aluminum alloy used in rail transit, and a dense and defect-free repair sample was obtained. The microstructure and properties of the sample were studi...