Bimetal sheet

Listning ID 659551

Description
UKRSTARLINE LLC sells a wide range of rolled metal: black, galvanized, stainless, non-ferrous, as well as rubber products at competitive prices.
Delivery is carried out quickly throughout Ukraine.
We have an opportunity to deliver under the order or to make positions interesting the client.
Send applications to viber (Kyivstar operator).
Our professional managers are happy to advise each client.
Features of the structure and properties of a bimetal
obtained by explosion welding

1. Physical phenomena that determine the possibility of obtaining a welded joint during explosion welding
The kinetics of joint formation is determined by the processes of occurrence of metal bonds.
During explosion welding, a joint is formed even in the presence of oxide and oil films, which indicates the existence of an effective mechanism for cleaning surface layers with a jet of compressed air located in the gap between the welded elements.
Deformation processes also play a significant role, as a result of which, simultaneously with the activation of surface atoms and the emergence of dislocations and other defects of the crystal lattice on the interface, destruction and removal of oxide films also occur.

2. Effect of explosion welding modes on the structure and properties of a bimetal
A distinctive feature of explosion welding is "wave formation" at the joint boundary, which is explained by the occurrence of intense plastic deformation at high pressures exceeding the dynamic yield strength of the materials being joined. Waves, depending on the welding modes and the properties of the parent metals, can be sinusoidal, asymmetric and with vortices, but their formation is not a prerequisite for achieving high joint strength.
The microstructure can indirectly assess the strength of the connection.
The maximum strength of the joint, as a rule, is higher than the strength of the joined metals (due to work hardening during impact), corresponds to a "clean" boundary: without oxide inclusions and areas with a melted structure; but always with traces of plastic deformation (clearly visible in Photo 1 in low-alloy steel in the form of deformed pearlite grains (dark color)).
A slight decrease in strength may occur due to the appearance at the joint boundary of areas containing the structure of the melted metal.
Product
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