Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Influence of ultrafine-grained structure produced by equal-channel angular pressing on the dynamic response of pure copper. / Smirnov, Ivan; Konstantinov, Alexander.
ECF22 - LOADING AND ENVIRONMENTAL EFFECTS ON STRUCTURAL INTEGRITY. ed. / A Sedmak; Z Radakovic; M Rakin. Elsevier, 2018. p. 1336-1341 (Procedia Structural Integrity; Vol. 13).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Influence of ultrafine-grained structure produced by equal-channel angular pressing on the dynamic response of pure copper
AU - Smirnov, Ivan
AU - Konstantinov, Alexander
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Metallic materials with a nanocrystalline or ultrafine-grained (UFG) structure can exhibit increased strength, albeit with reduced ductility. The behaviour of such materials under high-speed and impact loads has been insufficiently explored. This work presents experimental results on the dynamic response of UFG pure copper (99.95%) processed by equal-channel angular pressing (ECAP) in comparison with its initial coarse-grained (CG) structure. The yield strength in the case of compression tests of cylindrical samples and the energy consumed for deformation and fracture in the case of a three-point bending of a beam with a V-notch are considered. The UFG copper has higher yield strength in compression tests, but its sensitivity to the loading rate is significantly less than that of the CG initial material and depends on the number of ECAP passes. The UFG material shows higher impact toughness KCV and energy consumption for the entire process of deformation and fracture under impact three-point bending.
AB - Metallic materials with a nanocrystalline or ultrafine-grained (UFG) structure can exhibit increased strength, albeit with reduced ductility. The behaviour of such materials under high-speed and impact loads has been insufficiently explored. This work presents experimental results on the dynamic response of UFG pure copper (99.95%) processed by equal-channel angular pressing (ECAP) in comparison with its initial coarse-grained (CG) structure. The yield strength in the case of compression tests of cylindrical samples and the energy consumed for deformation and fracture in the case of a three-point bending of a beam with a V-notch are considered. The UFG copper has higher yield strength in compression tests, but its sensitivity to the loading rate is significantly less than that of the CG initial material and depends on the number of ECAP passes. The UFG material shows higher impact toughness KCV and energy consumption for the entire process of deformation and fracture under impact three-point bending.
KW - Consumed energy
KW - Dynamic bending
KW - Dynamic compression
KW - Equal channel angular pressing
KW - Pure copper
KW - Ultrafine-grained
KW - Yield stress
UR - http://www.scopus.com/inward/record.url?scp=85064621801&partnerID=8YFLogxK
U2 - 10.1016/j.prostr.2018.12.280
DO - 10.1016/j.prostr.2018.12.280
M3 - Conference contribution
AN - SCOPUS:85064621801
T3 - Procedia Structural Integrity
SP - 1336
EP - 1341
BT - ECF22 - LOADING AND ENVIRONMENTAL EFFECTS ON STRUCTURAL INTEGRITY
A2 - Sedmak, A
A2 - Radakovic, Z
A2 - Rakin, M
PB - Elsevier
T2 - 22nd European Conference on Fracture, ECF 2018
Y2 - 25 August 2018 through 26 August 2018
ER -
ID: 42686638