Knowledge Is Tungsten Brittle at High Temperature? 4 Key Factors to Consider
Author avatar

Tech Team · Kintek Solution

Updated 2 months ago

Is Tungsten Brittle at High Temperature? 4 Key Factors to Consider

Tungsten is generally considered brittle at low temperatures, but its behavior at high temperatures is more complex.

At elevated temperatures, tungsten can exhibit improved ductility, especially when it is in a pure state or when specific conditions are met.

However, it can also become brittle under certain conditions, such as when it is impure or exposed to oxidizing environments.

4 Key Factors to Consider

Is Tungsten Brittle at High Temperature? 4 Key Factors to Consider

1. Low Temperature Brittleness

Tungsten is brittle at low temperatures due to its high ductile-to-brittle transition temperature (DBTT), which is usually above room temperature.

This characteristic makes tungsten difficult to machine or fabricate at room temperature or lower temperatures.

Pure tungsten is difficult to machine and cannot be easily drawn or extruded into tubes, primarily due to its brittleness at these temperatures.

2. High Temperature Ductility

At higher temperatures, tungsten's behavior changes significantly.

Above its DBTT, tungsten becomes more ductile, allowing it to be formed and worked more easily.

This is particularly true for tungsten wire, where the application of heat enhances its formability.

Tungsten retains its strength well at elevated temperatures and is used in heating elements up to very high temperatures due to its high melting point and resistance to oxidation and creep.

3. Influence of Impurities and Oxidation

Despite its ductility at high temperatures, tungsten can become brittle if it is not pure or if it is exposed to oxidizing conditions.

Tungsten oxidizes rapidly in air above 1200°C, which can lead to embrittlement and failure.

This necessitates the use of protective atmospheres or vacuum conditions when operating tungsten at high temperatures to prevent oxidation and maintain its mechanical integrity.

4. Alloying and Heat Treatment

The mechanical properties of tungsten, including its ductility and brittleness, can be modified through alloying and heat treatment.

Adding elements like cerium or lanthanum can improve its creep strength and overall mechanical properties.

Metalworking and alloying can also reduce the DBTT, making tungsten less brittle at lower temperatures.

Continue exploring, consult our experts

Discover the versatile properties of tungsten with KINTEK SOLUTION!

Our advanced materials and processing techniques maximize tungsten's ductility for high-temperature applications, ensuring unparalleled performance and durability.

Whether you're dealing with low-temperature brittleness or seeking to harness high-temperature formability, rely on our expertise to elevate your projects to new heights.

Contact us today for unparalleled tungsten solutions tailored to your specific needs!

Related Products

Thermally evaporated tungsten wire

Thermally evaporated tungsten wire

It has a high melting point, thermal and electrical conductivity, and corrosion resistance. It is a valuable material for high temperature, vacuum and other industries.

2200 ℃ Tungsten vacuum furnace

2200 ℃ Tungsten vacuum furnace

Experience the ultimate refractory metal furnace with our Tungsten vacuum furnace. Capable of reaching 2200℃, perfect for sintering advanced ceramics and refractory metals. Order now for high-quality results.

High Purity Tungsten (W) Sputtering Target / Powder / Wire / Block / Granule

High Purity Tungsten (W) Sputtering Target / Powder / Wire / Block / Granule

Find high-quality Tungsten (W) materials for your laboratory needs at affordable prices. We offer customized purities, shapes, and sizes of sputtering targets, coating materials, powders, and more.

Electron Beam Evaporation Coating Tungsten Crucible / Molybdenum Crucible

Electron Beam Evaporation Coating Tungsten Crucible / Molybdenum Crucible

Tungsten and molybdenum crucibles are commonly used in electron beam evaporation processes due to their excellent thermal and mechanical properties.

Tungsten Titanium Alloy (WTi) Sputtering Target / Powder / Wire / Block / Granule

Tungsten Titanium Alloy (WTi) Sputtering Target / Powder / Wire / Block / Granule

Discover our Tungsten Titanium Alloy (WTi) materials for laboratory use at affordable prices. Our expertise allows us to produce custom materials of different purities, shapes, and sizes. Choose from a wide range of sputtering targets, powders, and more.

Tungsten Evaporation Boat

Tungsten Evaporation Boat

Learn about tungsten boats, also known as evaporated or coated tungsten boats. With a high tungsten content of 99.95%, these boats are ideal for high-temperature environments and widely used in various industries. Discover their properties and applications here.

Electron Beam Evaporation Coating / Gold Plating / Tungsten Crucible / Molybdenum Crucible

Electron Beam Evaporation Coating / Gold Plating / Tungsten Crucible / Molybdenum Crucible

These crucibles act as containers for the gold material evaporated by the electron evaporation beam while precisely directing the electron beam for precise deposition.

Tungsten Carbide (WC) Sputtering Target / Powder / Wire / Block / Granule

Tungsten Carbide (WC) Sputtering Target / Powder / Wire / Block / Granule

Looking for affordable Tungsten Carbide (WC) materials for your lab? Our expertly tailored products come in various shapes and sizes, from sputtering targets to nanometer powders. Shop now for quality materials that fit your unique needs.

High-purity titanium foil / titanium sheet

High-purity titanium foil / titanium sheet

Titanium is chemically stable, with a density of 4.51g/cm3, which is higher than aluminum and lower than steel, copper, and nickel, but its specific strength ranks first among metals.

Small vacuum tungsten wire sintering furnace

Small vacuum tungsten wire sintering furnace

The small vacuum tungsten wire sintering furnace is a compact experimental vacuum furnace specially designed for universities and scientific research institutes. The furnace features a CNC welded shell and vacuum piping to ensure leak-free operation. Quick-connect electrical connections facilitate relocation and debugging, and the standard electrical control cabinet is safe and convenient to operate.

Tantalum Tungsten Alloy (TaW) Sputtering Target / Powder / Wire / Block / Granule

Tantalum Tungsten Alloy (TaW) Sputtering Target / Powder / Wire / Block / Granule

Looking for high-quality Tantalum Tungsten Alloy (TaW) materials? We offer a wide range of customizable options at competitive prices for laboratory use, including sputtering targets, coatings, powders, and more.


Leave Your Message