تسجيل الدخول لسرعة الوصول إلى أفضل الصفقات. انقر هنا إذا لم يكن لديك حساب.

Tungsten-moly tungsten-moly tungsten-moly Professional

منذ أسبوع Multimedia Saïda   16 الآراء

-- دج

  • img
موقعك: Saïda
السعر: -- دج

Molybdenum metal is usually produced by powder metallurgy techniques in which Mo powder is hydrostratically compacted and sintered at about 2100°C. Hot working is done in the 870-1260°C range. Moly forms a volatile oxide when heated in air above about 600°C and therefore high temperature applications are limited to non-oxidizing or vacuum environments.

Molybdenum Alloys have excellent strength and mechanical stability at high temperatures (up to 1900°C). Their high ductility and toughness provide a greater tolerance for imperfections and brittle fracture than ceramics.

The unique properties of molybdenum alloys are utilised in many applications:

High temperature heating elements, radiation shields, extrusions, forging dies, etc;

Rotating X-ray anodes used in clinical diagnostics;

Glass melting furnace electrodes and components that are resistant to molten glass;

Sprayed coatings on automotive piston rings and machine components to reduce friction and improve wear.

For specialised applications, Mo is alloyed with many other metals like Lanthanated Molybdenum Alloy:

Mo-tungsten alloys are noted for exceptional resistance to molten zinc;

Mo is clad with copper to provide low expansion and high conductivity electronic circuit boards;

Mo-25% rhenium alloys are used for rocket engine components and liquid metal heat exchangers which must be ductile at room temperature.

Except for Molybdenum, Tungsten is also a popular metal. Tungsten is an invaluable element in the alloying process, where elements are blended to form new and improved metals known as alloys. Tungsten provides a unique contribution, as it imbues exceptional strength, corrosion resistance, and other useful properties to base metals. Besides being a great alloying element, tungsten can also be the base for its own alloys.

Tungsten alloy