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本文根据金相、热分析以及研究合金机械性能的结果,建立了钒-铌-钨三元系钒角合金(含铌量到25%,钨到16%)的平衡状态图,研究了Nb/W=2和1/2的变温截面.在所研究的合金浓度范围内,形成一系列的无限固溶体.所研究的合金性能的变化,符合于在固体状态下具有无限固溶度的合金系的特点.添加铌和钨到所给定纯度的碳热法钒中,提高了它的硬度和热硬度,并使合金变脆.在1000℃和1200℃时,铌使钒的抗氧化能力有一定的提高,而钨则使其在1000℃以上时的抗氧化能力变坏.
In this paper, the equilibrium state diagram of vanadium-niobium-tungsten ternary vanadium alloy (containing niobium content up to 25%, tungsten up to 16%) was established based on the results of metallography, thermal analysis and mechanical properties. The effects of Nb / W = 2 and 1/2 of the temperature change section.A series of infinite solid solutions were formed in the studied alloy concentration range.Variation of the properties of the alloys studied was in accordance with the alloy system with infinite solid solubility in solid state The addition of niobium and tungsten to a given carburization vanadium improves the hardness and hot hardness of the alloy and renders the alloy brittle. At 1000 ° C and 1200 ° C, niobium gives a certain level of oxidation resistance to vanadium Of the increase, while tungsten makes it more than 1000 ℃ when the deterioration of antioxidant capacity.