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Existing problems and prospects of titanium and titanium alloys

2024-01-03

Although titanium and titanium alloys have made significant progress, existing problems have also been exposed, posing significant challenges for the development of titanium alloys. Mainly reflected in the following three aspects:

1) In terms of output

Although China is a major titanium industry country, the quantity of high-quality products in production is not high, and there are few types of special performance titanium products. Secondly, China is unable to produce titanium strips and extruded titanium profiles in bulk and stably, which limits the development and utilization of titanium and titanium alloys in aerospace, marine and other fields. It is still very difficult to further increase the amount of titanium used in aviation engines to around 50%.

2) In terms of performance

Due to the high chemical activity of titanium metal and its susceptibility to contamination by other elements, the processing and manufacturing processes of titanium alloys are very high. At the same time, the high-performance products processed need to comprehensively consider their mechanical, physical, chemical, and process properties. Existing titanium alloys have a temperature above 600 ℃, and the sharp decline in creep resistance and high-temperature oxidation resistance is the two main obstacles that limit the expansion of titanium alloy applications.

3) In terms of cost

At present, various countries are striving to reduce the application cost of titanium alloys and have achieved many achievements. However, in terms of the current situation in China, the management and technical level have not yet reached the ideal level, and domestic titanium alloy products have poor competitiveness in the international market, which is not conducive to further expanding their use.

At present, the main application areas of titanium alloys are still in military industrial sectors such as aviation and aerospace. Developing new application areas, such as in automobiles, trains, high-speed railways, and civilian fields commonly used in daily life, still has a very broad prospect. In addition, replacing expensive alloy elements with cheaper ones and reducing the cost of titanium alloy components through process approaches is an important issue in future research on titanium alloys. After achieving low-cost manufacturing in the future, titanium alloys for high-end applications will be applied in various fields.

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