钛合金具有很多优点，是钢、铝合金、铜合金不能比拟的，但由于价格贵，一次性投资成本高，使其广泛应用受到限制．因此，低成本钛合金的研究越来越引起世界各国的重视．发展低成本钛合金主要途径有两条：～条是采用较廉价的合金元素代替较贵的合金元素，降低原材料的成本，另 Titanium has many advantages, such as steel, aluminum alloy and copper alloy, which can not be compared with each other. However, due to the high price, the one-time investment cost is so high that its wide application is limited. Therefore, the research of low-cost titanium alloy has drawn more and more attention from all over the world. The development of low-cost titanium alloy has two main ways: ~ Article is the use of cheaper alloying elements instead of more expensive alloying elements, reducing the cost of raw materials, and the other