Influence of ECAR Processing on OFHC Cu Material Properties
The influence of severe plastic deformation (SPD) on distribution of effective stresses, effective strains and temperatures during equal channel angular rolling (ECAR) process is mathematically simulated. Effect of ECAR processing on substructural and mechanical properties of oxygen free high conductivity (OFHC) Cu material is investigated too. Mathematical simulations in software DEFORM-3D, ECAR technology, tensile tests, EBSD analysis were used as experimental methods. Mathematical simulations of first ECAR pass referred on following results: effective normal stress had low heterogeneity with value 385 MPa, effective strain was distinguished with high heterogeneity in cross section of sample (ψ=1,5-3) and temperature in deformation zone achieved value 150 ℃. Mechanical properties after cold drawing were: Rp0,2=217 MPa, Rm=260 MPa, Z=63 % and after sixth ECAR pass were: Rp0,2=412 MPa, Rm=426 MPa, Z=72 %. From experiments is resulting the stabilization of mechanical properties after fourth ECAR pass were obtained.
Tibor Kvackaj Michal Kvackaj Volodymir Stoyka Robert Kocisko Jana Bidulska Julius Bacso
Department of Metals Forming,Faculty of Metallurgy,Technical University of Kosice,Letna 9,04200 Kosi Institute of Materials Research,Slovak Academy of Science,Watsonova 47,043 53 Kosice,Slovakia
国际会议
5th International Conference on Nanomaterials by Severe Plastic Deformation(第五届剧烈塑性变形纳米材料国际会议)
南京
英文
133-137
2011-03-01（万方平台首次上网日期，不代表论文的发表时间）