New materials, also known as Advanced Materials, refers to the new materials, which was found in recent successful studies and undergoing researches, with superior features, functions and able to meet the need of high-tech. Development of human history shows that material is the material basis and pilot of social development and the new material is a milestone of social progress.Materials technology has been a very important field in the world's national science and technology development planning, together with information technology, biotechnology, energy technology, are recognized as high-tech in today's society and for a long time dominate human technology. National defense force is often the prior user of new materials technology achievement, and the study and development of new material technology play a decisive role in the development of national's defense industry and weapon equipments.
The melting point of tungsten is the highest in metals, and its outstanding advantages is the high-temperature strength and crossion-resistance, which showing excellent properties inmilitary industry , especially weapon manufacturing.It is mainly used for manufacturing armor piercing bullet in weapon industry.
The armor-piercing bullet that in China's main battle tank 125 Ⅱ type is made of W-Ni-Fe, with variable density of sintering press, the average performance can achieve tensile strength 1200 MPa, elongation of more than 15%, tactical and technical index of 2000 meters homogeneous from the breakdown of 600 mm thick steel armor. Presently, tungsten alloys are widely used in large ratio armor-piercing in main battle tank, small and medium-caliber anti-aircraft penetrators and high-speed anti-piercing material , which makes this kind armor-piercing with more powerful breakdown.
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