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采用osprey喷射沉积设备,探索用氮气实现镁合金喷射沉积的可能性。通过热力学分析、镁合金成分设计、接收装置改进以及工艺参数调整等措施,制备镁合金坯锭,经变形及热处理后材料强度可达450 MPa。结果表明,成功抑制喷射过程中及吹氧冷却时镁合金的着火和坯锭组织中脆性相的形成,能够安全制备出高性能的镁合金材料。
Using osprey spray deposition equipment to explore the possibility of magnesium alloy spray deposition with nitrogen. The magnesium alloy billet was prepared through the thermodynamic analysis, the design of the magnesium alloy, the improvement of the receiving device and the adjustment of the process parameters. After deformation and heat treatment, the strength of the material reached 450 MPa. The results show that the ignition of magnesium alloy and the formation of brittle phase in the billet can be successfully suppressed during the spraying process and the cooling of oxygen blowing, and the high performance magnesium alloy can be safely prepared.