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Ductility and Plasticity of Nanostructured Metals: Differences and Issues
| Content Provider | Scilit |
|---|---|
| Author | Zhu, Yuntian Wu, Xiaolei |
| Copyright Year | 2021 |
| Description | Ductility is one of the most important mechanical properties for metallic structural materials. It is measured as the elongation to failure of a sample during standard uniaxial tensile tests. However, this measurement is problematic and often leads to gross overestimation for nanostructured metals, for which non-standard small samples 34are usually used. Uniform elongation is a better measure of ductility for small samples because they are less sensitive to sample size. Ductility can be considered as tensile plasticity, but is often confused with plasticity. Plasticity is primarily controlled by crystal structure, or the number of available slip systems, while ductility is largely governed by work hardening rate at room temperature, which is significantly affected by microstructure. Plasticity is important for shaping and forming metals into desired shape and geometry to make structural components, while ductility is important for the safety of structural components during service. Nanostructured metals typically have high plasticity, but low ductility, because of their low work hardening capability. Increasing work hardening rate via modifying microstructure is the primary route to improving the ductility of nanostructured metals. Book Name: Heterostructured Materials |
| Related Links | https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9781003153078-4&type=chapterpdf |
| Ending Page | 50 |
| Page Count | 18 |
| Starting Page | 33 |
| DOI | 10.1201/9781003153078-4 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2021-09-14 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Heterostructured Materials Structural Plasticity Nanostructured Metals Work Hardening Ductility Elongation Safety Tensile |
| Content Type | Text |
| Resource Type | Chapter |
