Children: Metallurgy
Sustained Load Cracking (SLC) is a type of failure that can occur in structural materials, particularly concrete and certain metals, when they are subjected to constant or sustained loads over a prolonged period. This form of cracking is different from other types of cracking, such as fatigue cracking, which is caused by cyclic loading (repeated application and removal of loads).
Tantalum-tungsten alloys are composite materials that combine tantalum and tungsten, two refractory metals known for their high melting points, excellent strength, and resistance to corrosion. These alloys take advantage of the individual properties of both metals to create materials that can withstand extreme conditions, making them highly suitable for various industrial applications.
Tin pest, also known as "tin disease" or "tin decay," is a phenomenon that affects tin, particularly at low temperatures (below approximately 13.2 °C or 55.8 °F). It involves the transformation of beta-tin (the stable form of tin at higher temperatures) into alpha-tin, which is a powdery, non-metallic form of tin that can lead to the deterioration of tin objects.
Tinplate is a type of metal that is produced by coating steel or iron sheets with a thin layer of tin. This coating is usually done through an electroplating process or by hot-dipping the steel in molten tin. The primary purpose of tinning (the process of applying tin) is to provide corrosion resistance, as tin helps protect the underlying iron or steel from rust and other forms of degradation. Tinplate is commonly used in various applications, especially in the food packaging industry.
Transient Liquid Phase (TLP) Diffusion Bonding is a joining technique used primarily in materials engineering to bond similar or dissimilar materials together. This method is particularly effective for metallurgical joining of materials that may be challenging to weld or braze due to their differing thermal or mechanical properties. ### Key Concepts: 1. **Transient Liquid Phase**: In TLP bonding, a small amount of a liquid phase is created during the bonding process.
Uranium metallurgy refers to the processes and techniques involved in the extraction, processing, and manipulation of uranium and its alloys for various applications, particularly in the nuclear energy sector. This field encompasses several stages, including mining, refining, fabrication, and recycling of uranium materials. Here are some key aspects: 1. **Extraction**: Uranium is primarily obtained through mining processes, which can include conventional mining, in-situ leaching, or heap leaching.
In metallurgy, a whisker refers to a very thin, hair-like crystal structure that can form in certain materials, particularly metals and semiconductors. These whiskers are typically single crystals that can grow spontaneously from the material and can have significant implications for the mechanical properties and performance of the material. Whiskers can be formed during the processing or fabrication of materials, often as a result of specific conditions such as thermal stress, impurities, or phase changes.
The Zener–Hollomon parameter, often represented as \( Z \), is a dimensionless parameter used in materials science and metallurgy to characterize the temperature and strain rate dependence of material deformation processes, particularly in the context of high-temperature deformation of metals.