The Future Of Metal Materials Technology For Ships: 10 Major Development Trends

In the process of modern ship development, the United States, Russia (Soviet Union), Britain, Germany, France, Japan and other ship powerhouse, are the development of materials technology as the basis for the development of the ship and the precursor to the development of materials technology attaches great importance to the development of materials technology, not only in different periods of development from the top of the development of materials technology for the development of the ship to formulate the development of strategic planning, invested a lot of manpower and financial resources to continue to carry out the basic materials technology, emerging materials technology, research and development and cutting-edge technology exploration, but also pays great attention to the construction of test and verification platforms (including test submarines). R&D of basic material technology, emerging material technology and exploration of cutting-edge technology, and also pays great attention to the construction of test and verification platform (including test submarine). Along with the development of ships, through continuous innovation and advancing with the times, people have not only developed a variety of materials to meet the needs of ships in various periods of development, but also formed a strong research and production capacity of materials technology and a complete supporting system of complete categories, and established a more complete ship materials system and the basic theories, methods and processes of ship materials technology. Focusing on the current development of ship materials technology, based on the development of high and new technology in the early 21st century (2035 years ago), it can be predicted that the trend of development of ship materials technology in the early 21st century will show a high, complex, titanium, stable, preventive, with, without, before, with, low and so on, the 10 major features.

First, "high" - ship hull steel is still to the development of high-performance
Ship structural steel future development trend is mainly:
1. will still be high-performance as the pursuit of the main direction of development, focusing on improving the overall performance of steel, including strength, plasticity, toughness, anti-explosive properties, resistance to brittle damage, resistance to seawater corrosion, fatigue resistance characteristics.
2. Extremely focused on hot and cold processing, welding and other process performance research, will improve the structural steel process performance as an important development direction in the future.
3. Focus on the design of high-strength structural steel formulations, preparation and application of the theory and method of technology research, improve.
4. While focusing on the development of high performance, the pursuit of low-cost economic performance.
Second, "compound" - the trend of research and development of high-performance multifunctional composite materials is on the rise
Ship composites technology tendency of future development is mainly:
1. R & D low-cost / high-performance composite materials and their products is the main trend of the future.
2. By simply carrying structural composite materials to multi-functional composite materials (both structural, sound insulation, sound absorption, damping, radar stealth and other characteristics) development.
3. The life span of ship composite structures and components is generally required to be more than 20 years, and the research and development of composite structural health monitoring and repair technology to ensure its long-term safety and reliability is an important direction for future development.
4. Focusing on the research and development of convenient and reliable connection technology between composite parts and between them and steel structure.
Third, "titanium"-high-performance titanium alloy research and development and popularization of the application of the imperative
The main development trend of future ship protection material technology is:
1. While continuing to improve or maintain the existing characteristics of titanium alloy, should reduce the manufacturing cost of titanium alloy and its products as an important direction for future development.
2. To carry out the construction of convenient, safe and reliable titanium alloy welding and manufacturing (bending, molding, etc.) process and other technical research is another important direction for future development.
3. Focus on the development of ships to further promote the application of titanium alloy and its products.
4. Further improve the titanium alloy material system, continue to research and develop, expand the marine titanium alloy product series.
Fourth, "hidden" - still research and development of high-performance stealth materials as an important development direction
The main direction of the future development of stealth materials technology:
1. Comprehensive, high-performance is the main direction of the future development of ship stealth material technology.
2. Adapt to the active vibration and noise control components demand for stealth materials technology research.
3. acoustic cover layer (including anechoic tile) with low-frequency anechoic and decoupling effect of material technology research.
4. Research on frontier technologies such as acoustic stealth and wake stealth.
5. Technical research on the preparation and application of new stealth materials (including testing and construction process).

Fifth, "defense" - ship protection materials to environmental protection and high life as the focus of the momentum is waiting to happen!
The main development trend of future ship protection material technology is:
1. high-performance protective materials (such as metal alloys, nanomaterials, biomimetic materials, etc.) to replace a single protective function of the material as the direction of development, and strive for a multi-purpose material, a material enough.
2. Ships easy to corrosion and fouling parts (such as the seawater pipe system, superstructure, fasteners, liquid compartments, etc.) corrosion and fouling characteristics, mechanisms and coating protection technology research, will be able to target, according to the local conditions, according to the use of materials to solve the problem of protection of different parts of the problem.
3. In view of the new international law of the sea needs, as well as the serious situation of marine environmental pollution, the development of protective materials technology in the process of strengthening the protective properties at the same time, the pursuit of environmental protection, economy as an important indicator.
4. We should strengthen the research on the best protection technology program for the whole life of the ship, and pay attention to the effective monitoring and reasonable prediction of the protection effect.
5. Focus on the research and development and application of special material technology for ships, such as anti-skid, high-temperature sealing and anti-leakage, and high-performance environmentally-friendly decoration of cabins.
Sixth, "there is" - non-ferrous metal materials for ships still need to strengthen the promotion and application of
The main development trend of non-ferrous metal materials technology for ships in the future:
1. Aluminum alloy. Carry out research on high-strength corrosion-resistant aluminum alloy materials to meet the needs of a new generation of aircraft carriers to reduce the weight of a large number, improve the fatigue strength of the structure; at the same time, carry out research on the reliability of aluminum alloy structure in order to improve the structural design of high-speed aluminum ship, maneuvering and maintenance capabilities.
2. Copper alloy. Research and development of higher flow rate limit of the ship with copper pipe system (currently usually 3m / s), to solve the current purple copper or B10 nickel-copper alloy corrosion resistance to seawater scouring corrosion or corrosion resistance to seawater with sand poor corrosion performance.
3. Magnesium alloy. Carry out the magnesium package zinc type, magnesium package aluminum type composite sacrificial anode research, the implementation of long-term, stable protection of steel structures.
Seven, "no" - to open up the application of inorganic materials in the ship equipment in new areas
The main development trend of inorganic materials technology for ships in the future is:
1. Carry out research on the working performance of inorganic materials in the complex marine environment and the law of corrosion effect, improve the environmental adaptability, and improve the special performance of fireproofing, heat preservation, vibration absorption and anticorrosion.
2. Carry out research on the preparation, production and application technology of high-strength lightweight marine concrete to further promote the development and application of similar marine buildings, such as offshore concrete drilling platforms and storage and transportation platforms, barges, floating docks, lifting vessels and other engineering vessels.
3. Research and development of ship interior decoration materials with excellent comprehensive performance (such as craftsmanship, thermal insulation, fire prevention, anti-corrosion, economy).
Eight, "before" - the development trend of ship materials, cutting-edge technology presents a blossoming of the development trend
The future development of cutting-edge materials technology for ships mainly presents the following trends:
1. independent innovation, "whimsical", put forward novel frontier materials technology projects, and make efforts to overcome technical difficulties, to achieve innovative breakthroughs, to play the unique advantages of cutting-edge materials technology, so as to bring significant enhancement to the performance of ship equipment. Such as piezoelectric damping new vibration damping material technology, intelligent visible light stealth material technology, submarine liquid stealth coat material technology, nano-materials technology and other cutting-edge materials technology.
2. Strengthen the exploration of the demand for the development of materials technology for ship equipment, provide ideas and methods for the research and development of new materials technology; strengthen the research on the principles, methods, design and manufacturing technology of new materials, and make technical reserves for the use of the ship.
3. Strengthen the research on the application technology of new materials and new technology, and if necessary, carry out land demonstration and verification through the condition guarantee facilities, or carry out application exploration in other non-ship industries, from which we can accumulate experience, improve the technology, and lay the foundation of one-time successful use of emerging materials for ship equipment.

IX. "Use" - indispensable to strengthen the research of material application technology
The future development trend of ship material application technology is mainly:
1. To carry out application-oriented material technology research, so that the development of any one material technology is based on any one material technology application has the demand for space, which is to promote the research and development of new materials and new technologies and applications, is of great significance.
2. Carry out research on application technology and test verification of new ship materials, and promote the development and application of new materials through advanced material application technology and excellent experimental verification results.
3.Carry out the research on the application and promotion of new ship materials, verify the effect of shipboard through shipboard application, and seek opportunities for promotion and application.
Ten, "low" - ship materials technology, as in the past to the direction of low-cost development
The future development trend of low-cost ship materials technology is mainly:
1. Research, establish a set of more complete, can meet the actual application of engineering measurement, assessment of the economics of ship materials, basic theory, index system.
2. Ship material economy evaluation (calculation) method research.
3. Research and preparation of guiding documents (standards) for economic design of ship materials.