345-0533/03 – Bulk Nanomotarials Processes (TPON)
| Gurantor department | Department of Mechanical Technology | Credits | 3 |
| Subject guarantor | prof. Ing. Stanislav Rusz, CSc. | Subject version guarantor | prof. Ing. Stanislav Rusz, CSc. |
| Study level | undergraduate or graduate | Requirement | Choice-compulsory |
| Year | 1 | Semester | summer |
| | Study language | Czech |
| Year of introduction | 2008/2009 | Year of cancellation | 2019/2020 |
| Intended for the faculties | USP | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
Development and apply technology to the production of UFG and nanomaterials. Inform students about the latest findings from the development of methods for the production UFG materials. Introduce students with technology using severe plastic deformation process. Experimentally verify and evaluate results on the obtain grain refinement of selected materials by ECAP and DRECE methods.
Teaching methods
Lectures
Tutorials
Experimental work in labs
Summary
The subject belongs to a group of branch courses, which builds on knowledge student of mathematics and mechanics. Among the selected technology training volume of UFG and nano materials (BNM) and the promising methods of treatment include special forming technology. In the course are discussing the theoretical fundamental forming processes BNM, BNM properties and methods of their analysis, modeling the process of forming BNM, all with a goal on application processing BNM forming. In the first part, students are informed on models of plastic deformation in ultra-fine grained materials. The most developed technologies of ultra-fine grained (nano) materials are analyzed in the next parts. Following the geometry effect of the forming tools on the forming process and tools is analyzed and influence of grain refinement with ECAP and DRECE technology to achieve the necessary parameters. There are the most scientifically and industrially developed methods. Results of grain refinement and mechanical properties are experimentally verified and evaluated of selected materials.
Compulsory literature:
Recommended literature:
Additional study materials
Way of continuous check of knowledge in the course of semester
1 to 6 Laboratory experiments on hydraulic press DP 1600 kN with ECAP tool.
7 to 14 Laboratory experiments on DRECE Eequipment - sheet metal, wire,
Developing knowledge test.
E-learning
Other requirements
Active attendance at exercises - at least 80%.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1. Introduction to the issue of UFG and nano materials.
2. Physical models of UFG and nano materials.
3. Mechanical properties of UFG and nano materials: elasticity, hardness and strength,plasticity and toughness, formability.
4. Nanometric tests: means and methods for nanomechanical tests, means and methods for electron microscopy analyzes. Diffractometry, the analysis of microstructures in HREM.
5. Dynamic Materials Modeling: 2D and 3D FEM simulation systems of forming technologies.
6. The mechanism of plastic deformation: Depending on the size of grains, classical
materials, superplastic materials, nanomaterials, a mechanism of deformation
function of the size of deformation, the physicals mechanisms of plastic deformation, diffusion and related phenomena.
7. Hall-Petchova equation scope for KM, the SPLM, BNM - measured
values composite law.
8. BNM shaping technology of preparation: technology angular extrusion, C2S2,
HPT, CONFORM, CCDC, CEC, ARB, CGP
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction