High cost performance titanium alloy and preparation method thereof

A titanium alloy, cost-effective technology, applied in the field of cost-effective titanium alloy and its preparation, can solve the problems of TC4 processing performance and heat treatability, difficulty in processing and molding, low material utilization rate, etc., and achieve good cold and hot processing performance , Improve the finished product rate and service life, and the effect of excellent mechanical properties

Active Publication Date: 2017-08-15
BEIJING JINYU SHUNDA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the processing performance and heat treatment performance of TC4 are not very good, so the processing and m

Method used

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  • High cost performance titanium alloy and preparation method thereof
  • High cost performance titanium alloy and preparation method thereof
  • High cost performance titanium alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Preparation of various formula titanium alloy materials

[0023] Adopt the following method to prepare the titanium alloy material of each formula composition in Table 1 (each material content is weight percent content; All do not contain molybdenum and vanadium in each formula titanium alloy material; Carbon, hydrogen, oxygen, nitrogen in each formula unavoidable impurity The total weight percentage is less than 0.4%).

[0024] The alloy material is formulated according to the formula, and the sponge titanium, aluminum-iron master alloy, aluminum-chromium master alloy, aluminum-tin master alloy and aluminum-silicon master alloy are mixed and pressed into electrodes, and melted twice or three times in a vacuum consumable furnace to obtain Alloy ingots (smelting vacuum requirements lower than 1Pa). After peeling the ingot, cutting off the riser and tail, the billet is forged at 1050°C, and then made into a slab at 950°C, and then hot-rolled at 950°C, and t...

Embodiment 2

[0027] Embodiment 2: The mechanical property detection of each formula titanium alloy material

[0028] The titanium alloy plates prepared according to the formulations of Example 1 were made into tensile samples according to the national standard GB / T 228.1-2010, and comprehensive mechanical properties were tested at room temperature. The test results are shown in Table 2 below.

[0029] Table 2 Mechanical property test results of each formula titanium alloy material

[0030]

[0031] It can be seen from the data in the above Table 2 that the performance of the titanium alloy of the present invention is better than that of Ti-6Al-4V, and it does not contain noble metals molybdenum and vanadium, so it has higher cost performance.

Embodiment 3

[0032] Embodiment 3: the preparation cost accounting of each formula titanium alloy material

[0033] The preparation cost of the titanium alloy plate prepared according to the formula and preparation method of Example 1 was calculated and compared with the preparation cost of the TC4 titanium alloy plate. The results are shown in Table 3 below.

[0034] Table 3 Cost accounting results of preparation of titanium alloy materials for each formula

[0035]

[0036]

[0037] It can be seen from the data in Table 3 above that the preparation cost of the titanium alloy material of the present invention is significantly lower than that of Ti-6Al-4V.

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Abstract

The invention belongs to the field of alloy materials and relates to a high cost performance titanium alloy and a preparation method thereof. Titanium is mainly contained, besides, the titanium alloy further contains, by weight, 4%-7% of aluminum, 0.2%-2.5% of iron, 0.1%-2% of chromium and little inevitable impurities, and the titanium alloy does not contain molybdenum and vanadium. Compared with a TC4 titanium alloy material widely used in the prior art, the high cost performance titanium alloy is easier to machine, heat treatment performance is good, machining forming is easier, performance is better, and the production cost and the final price of the alloy material can be reduced.

Description

technical field [0001] The invention belongs to the field of alloy materials, and relates to a titanium alloy with high cost performance and a preparation method thereof. Background technique [0002] TC4 is the earliest titanium alloy, which was successfully developed in the United States in 1954. The nominal composition of TC4 is Ti-6Al-4V. Because of its good heat resistance, strength, plasticity, toughness, weldability, corrosion resistance and biocompatibility, it has been widely used. [0003] However, the processability and heat treatability of TC4 are not very good, so it is difficult to process and shape, and the material utilization rate is low, resulting in high cost and high price of the final product. Contents of the invention [0004] The primary purpose of the present invention is to provide a cost-effective titanium alloy, which is easier to process than the TC4 titanium alloy material widely used in the prior art, has better heat treatment performance, ea...

Claims

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Application Information

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IPC IPC(8): C22C14/00C22C1/03
CPCC22C1/03C22C14/00
Inventor 刘建尊
Owner BEIJING JINYU SHUNDA TECH CO LTD
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