Besides W-phase and Ni-phase, there is a micro new phase in W-Mo-Ni-Fe heavy alloy added with La and Mn. The micro phase can he extracted as an electrolytic residue by the following method: A mixture of the new phase ...Besides W-phase and Ni-phase, there is a micro new phase in W-Mo-Ni-Fe heavy alloy added with La and Mn. The micro phase can he extracted as an electrolytic residue by the following method: A mixture of the new phase and the Ni-phase is isolated when an alloy sample is electrolyzed in 5%NaOH+1% tartaric acid solution. And the new phase can be isolated alone when the mixture is electrolyzed in 10% acetylacetone +1%LiCl methanol solution. The result of the quantitative phase analysis indicates that the new phase is a complex oxide rich in La, W and Mn.The interfacial segregation of oxygen decreases and the binding force between W-Ni Phases increases because of the existence of the oxide. So the mechanical properties of the alloy are improved.展开更多
文摘Besides W-phase and Ni-phase, there is a micro new phase in W-Mo-Ni-Fe heavy alloy added with La and Mn. The micro phase can he extracted as an electrolytic residue by the following method: A mixture of the new phase and the Ni-phase is isolated when an alloy sample is electrolyzed in 5%NaOH+1% tartaric acid solution. And the new phase can be isolated alone when the mixture is electrolyzed in 10% acetylacetone +1%LiCl methanol solution. The result of the quantitative phase analysis indicates that the new phase is a complex oxide rich in La, W and Mn.The interfacial segregation of oxygen decreases and the binding force between W-Ni Phases increases because of the existence of the oxide. So the mechanical properties of the alloy are improved.
