The discovery of tungsten-nickel-iron alloy did not happen overnight, but was based on the long-term exploration of tungsten-based materials and the development of powder metallurgy technology. As early as the 19th century, people had recognized that tungsten has excellent properties such as high density and high melting point, but the problem of high brittleness and difficulty in processing of pure tungsten had always restricted its practical application. At that time, scientists tried to improve the performance of tungsten by adding other metal elements, but they failed to find an ideal solution.
In the early 20th century, with the initial development of powder metallurgy technology, new ideas were provided for alloy preparation. In the 1930s, some research institutions and scientists, when conducting experiments on tungsten-based alloys, accidentally found that when nickel and iron were added to tungsten as binders at the same time, the performance of the formed alloy was far better than that of adding other elements alone. This alloy not only retained the high density characteristics of tungsten, but also had certain plasticity and machinability, successfully overcoming the brittleness problem of pure tungsten.
This discovery did not attract widespread attention at first. It was not until the outbreak of World War II that the urgent demand for high-density and high-strength materials in the military field brought this new type of alloy into people’s vision. After further tests and verifications, its excellent performance in the manufacture of armor-piercing projectiles confirmed its practical value, and also marked that tungsten-nickel-iron alloy was officially discovered and began to enter the stage of practical application. Subsequent studies have continuously improved its composition ratio and preparation process, making its performance more stable, laying a solid foundation for its subsequent development and application.
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