Effect of Ecap-Drawing on the Microstructure of a Bimetallic Wire
Volokitina I.E. Naizabekov A.B. Panin E.A. Volokitin A.V.
November 2021Springer
Metallurgist
2021#65Issue 7-8769 - 774 pp.
The change of the microstructure of a bimetallic wire during one pass of ECAP-drawing at room temperature is considered. It is shown that both layers of the bimetallic wire deform nonuniformly. The copper shell with an initial grain size of 50 μm is deformed to 30 μm on average. The steel core is characterized by different grain sizes in cross-section, the initial grain size being 18. The grain size is 14 μm in the surface layers of the core and about 17 μm in the axial zone. After drawing, the grains are elongated due to tensile stresses.
bimetallic wire , drawing , microstructure , simulation
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Rudny Industrial Institute, Rudny, Kazakhstan
Rudny Industrial Institute
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