Influence of the stressed state on the limiting plasticity of M00K copper rolled wire
https://doi.org/10.17073/0021-3438-2015-5-39-45
Abstract
A fracture locus of copper rolled wire depending on the stressed-state coefficient (k) and Lode–Nadai coefficient (μσ) is constructed. The region of using this fracture locus to calculate the damage is limited by values k < 1,4 and –1 < μσ < 0. To construct the fracture locus, we performed twisting tests of cylindrical samples and tension tests of cylindrical and plane samples in air and in a chamber with a controlled liquid pressure, which was varied from 49 to 375 MPa. The constructed fracture locus will be further used for the calculations of damage of copper rolled wire in drawing processes, by the results of which, recommendations for lowering the wire breakage during drawing will be elaborated.
About the Authors
D. I. Vichuzhanin
Институт машиноведения (ИМАШ) УрО РАН, г. Екатеринбург
Russian Federation
Russian Federation
S. E. Shikhov
Институт машиноведения (ИМАШ) УрО РАН, г. Екатеринбург
Russian Federation
Russian Federation
S. V. Smirnov
Институт машиноведения (ИМАШ) УрО РАН, г. Екатеринбург
Russian Federation
Russian Federation
R. V. Churbaev
Институт физики металлов УрО РАН, г. Екатеринбург
Russian Federation
Russian Federation
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Review
For citations:
Vichuzhanin D.I., Shikhov S.E., Smirnov S.V., Churbaev R.V. Influence of the stressed state on the limiting plasticity of M00K copper rolled wire. Izvestiya. Non-Ferrous Metallurgy. 2015;(5):39-45. (In Russ.) https://doi.org/10.17073/0021-3438-2015-5-39-45
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