A kind of ta3 cold-rolled plate and method for fine-grain strengthening of ta3 cold-rolled plate

Abstract

The invention relates to the field of metal materials, and discloses a TA3 cold-rolled plate fine grain reinforcement method. The method comprises the following steps: plate blank manufacturing, hot rolling, cold rolling and annealing. The plate blank manufacturing raw material contains 0.1-0.3 wt% of Fe and 0.1-0.3 wt% of O. The hot rolling temperature is 800-900 DEG C, the finishing temperature of the hot rolling is not greater than 700 DEG C, the hot-rolled semifinished product after hot rolling is 2-8mm thick, and the deformation rate of the end rolling process of the hot rolling is not less than 45%. The deformation rate of the end rolling process of the cold rolling is not less than 35%. The annealing temperature is 580-650 DEG C, and the soaking time for annealing is 30-60 minutes. The grain size of the TA3 cold-rolled plate prepared by the fine grain reinforcement method reaches Grade 8-9; and the TA3 cold-rolled plate can be substituted for partial low-Al low-V medical titanium alloys, and has excellent market prospects.

Description

technical field [0001] The invention relates to a TA3 cold-rolled plate, a fine-grain strengthening method for the TA3 cold-rolled plate and a TA3 cold-rolled plate obtained by the method. Background technique [0002] As we all know, in recent years, biomedical metal materials have maintained an annual growth trend of 15-20%. Due to the high specific strength of titanium and titanium alloys, the elastic modulus is close to that of natural bone, good corrosion resistance, and excellent biocompatibility and processing formability. , has been increasingly used in the field of orthopedic implants. [0003] The traditional surgical implant Ti-6Al-4V titanium alloy has been widely used in the field of surgical implants. However, some problems have been discovered in recent years. First, due to the presence of V elements, the toxicity of V elements gradually emerged in the later stages of patient implantation. Secondly, some studies have pointed out that Al elements can also affe...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defect that the existing TA3 cold-rolled plate fine-grain strengthening method is difficult to obtain TA3 cold-rolled plate with both strength and processing plasticity and the cost is high, and provides a kind of TA3 cold-rolled plate with high strength and good processing plasticity. The TA3 cold-rolled sheet also provides a TA3 cold-rolled sheet fine-grain strengthening method capable of obtaining higher strength, better processing plasticity and lower cost and the TA3 cold-rolled sheet prepared therefrom

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