|
| Mechanical Properties of the ZL205A Alloy of Porosity Defect |
| Received:April 04, 2017 Revised:August 15, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2017.08.017 |
| KeyWord:porosity defect ZL205A specimen mechanical property constitutive relationship |
| Author | Institution |
| ZHAO Peng-fei |
Aerospace Science & Industry Corp Defense Technology R&T Center, Beijing , China |
| WANG Yu-hong |
Aerospace Science & Industry Corp Defense Technology R&T Center, Beijing , China |
| ZHANG Xin-yun |
Aerospace Science & Industry Corp Defense Technology R&T Center, Beijing , China |
| LI Hong-min |
Aerospace Science & Industry Corp Defense Technology R&T Center, Beijing , China |
|
| Hits: |
| Download times: |
| Abstract: |
| Objective To obtain variation rules and mechanical-behaviors of the main mechanical properties of ZL205A materials of porosity. Methods By uniaxial tensile testing, mechanical properties of ZL205A specimens including various grades of porosity were estimated with the secant method; based on analysis of fractured surface and load-displacement curve of specimens, the mechanical-behaviors and model of ZL205A materials were assumed and validated by finite element modeling. Results Values of tensile strength, extensibility, elastic modulus and yield strength of ZL205A materials exhibited decreasing trend with the increase of porosity grade. The materials in deformation had no obvious plastic yielding stage and brittle fracture. Conclusion The Ramberg-Osgood equation is suitable for describing the elastoplastic constitutive relationship of ZL205A materials. |
| Close |
|
|
|