Why is Inconel 718 called a super alloy?
What is Inconel superalloy?
Alloys are created by combining two or more substances to produce a product that has more desirable properties than any of its components. Pure metals alone are often soft and prone to corrosion.
Inconel superalloys are a class of alloys that have proven valuable in applications such as jet engines, offshore platforms and automotive components.
So, what exactly is Inconel superalloy?
Basically, these compounds are nickel-based alloys containing chromium and iron. Together, these elements create super metals with highly sought-after and hard-to-find properties. These properties include high corrosion resistance and excellent performance at extreme temperatures, making it ideal for heat treatments.
It is important to note that Inconel is a registered trademark of Specialty Metals Corporation. So if you buy Inconel 625, you are buying their product. When this alloy is produced and sold, it is often referred to as Nickel Alloy 625. The entire Inconel family and its common alloys follow this naming convention.
Properties of Inconel
The Inconel material is known for its resistance to oxidation, creep, corrosion and high strength at extreme temperatures in real-world applications – and tested in simulations run on supercomputers.
In addition, Inconel can be produced with smaller grain sizes, which improves its yield strength and physical properties. If milled properly, alloys like Inconel x 750 can withstand temperatures in excess of 1,300 degrees Fahrenheit (704 degrees Celsius).
Special properties of Inconel high-temperature alloys
You already know about the high strength and corrosion resistance of Inconel superalloys at high temperatures. Here are some additional attributes that make them special.
Characteristics of high temperature alloys
Superalloys get their name because they are more versatile than the parent metal and therefore more valuable to the user. In general, superalloys have incredible high-temperature strength and can withstand the extreme environments to which they are exposed. They also have smaller grain boundaries than regular alloys, which prevents them from becoming brittle.
In other words, superalloys get the job done when more commonly used metals aren't durable enough.
Special properties of Inconel alloy materials
Inconel materials are known for their good properties, even up to their melting point. Its microstructure and physical properties give Inconel excellent corrosion and oxidation resistance compared to other metals.
These special properties are why Inconel strip and shaped wire are widely used by manufacturers who stamp and produce parts for a variety of industries. It is also one of the most commonly used powder metals in additive manufacturing.
Inconel superalloy uses and applications
Many industries that require extremely strong materials often gravitate towards metals such as titanium or stainless steel alloys. However, due to their versatility, Inconel materials and other high-temperature alloys are becoming increasingly popular and are often the best choice for certain applications.
