Light ultrahigh-strength and corrosion-resistant weldable titanium alloy wire rope for crane and preparation method of titanium alloy wire rope

Abstract

The invention discloses a light ultrahigh-strength and corrosion-resistant weldable titanium alloy wire rope for a crane. Alloy comprises the following components in percentage by weight of 2.0 to 6.0 percent of Cr, 1.0 to 3.0 percent of Mn, 2.0 to 5.0 percent of Co, 2.0 to 6.0 percent of Zr, 2.0 to 4.0 percent of Al, 0.2 to 0.5 percent of Cu, 0.05 to 0.10 percent of Dy, less than 0.3 percent of total content of impurity elements C, H, O and N, and the balance of Ti. The titanium alloy wire rope disclosed by the invention has high specific strength, good plasticity and toughness and excellent corrosion resistance and antifouling property, and the weight is reduced by 40% or above; and the titanium alloy wire rope has good technical application and market prospects in the fields of hoisting equipment under the environmental conditions of ports, coasts, ocean platforms and coastal areas.

Description

technical field [0001] The invention relates to an alloy wire rope, in particular to a lightweight ultra-high-strength corrosion-resistant weldable titanium alloy wire rope for cranes suitable for marine engineering environments and a preparation method thereof. Background technique [0002] At present, lifting equipment mainly uses steel wire ropes, which carry almost all the lifting, lifting, and transportation weight in the world, and this "lifeline" closely related to safety is generally used in the open air, and the sun and rain will make the wire ropes corrosion. Especially in the marine atmospheric environment, such as my country's offshore drilling platforms and port and coastal lifting equipment, a large number of steel wire ropes are required, and the damage caused by corrosion is even more serious. In actual use, the impact of corrosion on the mechanical properties of steel wire ropes is far more than that of broken wires and wear. Corrosion is the main reason af...

AI Technical Summary

Problems solved by technology

[0006] It can be seen that at present, the titanium alloys used in the marine engineering environment are all α-type alloys, which have a hexagonal close-packed structure. There are fewer slip systems that can be activated during the forming process, and the process plasticity is poor. Easy to break

In addition, in the existing titanium alloy system, there is no titanium alloy material that meets the preparation process requirements and strength level of ultra-fine wire (diameter Φ≤0.5mm)

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