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Corrosion Resistance of Amorphous Alloys

Extraordinary corrosion resistance eliminates the need for additional coatings.

The homogeneous and disordered atomic arrangement in amorphous metals contributes to their resistance against corrosion and erosion. In crystalline materials, grain boundaries play a significant role in determining the corrosion behavior. These boundaries can act as sites for corrosion initiation and propagation. In addition, the presence of specific crystallographic planes can lead to variations in corrosion resistance within the material. Breakdown potentials result in an increase in the current density of the corrosion current and rate.

In amorphous materials, the atoms are arranged in a homogeneous and disordered manner. The lack of grain boundaries inhibits the pathways for corrosion propagation, providing a high resistance to chemical attack or environmental degradation. Additionally, the absence of defects reduces the likelihood of localized corrosion, such as pitting and crevice corrosion.

Due to their excellent intrinsic resistance, amorphous metals do not require additional coatings for protection against corrosion, providing a cost-effective and durable material choice for industries where protection in aggressive surroundings is essential.

Explore the diverse advantages that amorphous metals offer in various industrial sectors, as well as their suitable applications

Amorphous alloys in medical technology

The use of amorphous metals offers promising solutions to address the challenges in personalized implant, orthopedic, and medical device manufacturing. With biomechanical properties such as low elasticity modulus and high yield strength, as well as certified biocompatibility, amorphous metals show potential for improved patient care. Applications range from implants in the spine, dentistry, and traumatology to medical devices and surgical instruments.

Amorphous alloys in medical technology
Amorphous alloys in lifestyle products 

New classes of materials are interesting not only because of their uniqueness in high-end watches, but also because of their suitability in the search for materials for future technologies such as wearables. Here, the most sensitive technologies can be efficiently protected in miniaturized space and the housing design can be perfected. Lifestyle components made of amorphous metals are not only highly corrosion-resistant due to their biocompatibility, but also antibacterial and thus enable pleasant skin contact due to their low thermal conductivity and high surface quality. 

Amorphous alloys in robotics and aerospace

In the aerospace industry, amorphous metals offer key advantages for components, including high strength, geometric design flexibility, and corrosion resistance. They are also low-temperature ductile and exhibit good fatigue strength, making them ideal for space applications. In high-tech applications, amorphous alloys solve the limitations of conventional materials by providing high strength and elasticity, enabling the efficient use of elastic machine elements like bending joints, hinges, gripper units, and spring components with long component life and wear resistance.