Influence of strain rate and heat treatments on tensile and creep properties of Zn-0.15Cu-0.07Ti alloys
The use of Cu and Ti in Zn alloys improves mechanical properties as solid solution and dispersoid particles (grain refiners) may harden the material and reduce creep deformation. This is one of the main design problems for parts made with Zn alloys, even at room temperature. In this work the mechani...
- Autores:
-
Quintana Hernández, María José
García, José Ovidio
González Ojeda, Roberto
Verdeja, José Ignacio
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2016
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/60583
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/60583
http://bdigital.unal.edu.co/58915/
- Palabra clave:
- 62 Ingeniería y operaciones afines / Engineering
Zn alloys
creep
strain rate coefficient
solid solution hardening
texture
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
| Summary: | The use of Cu and Ti in Zn alloys improves mechanical properties as solid solution and dispersoid particles (grain refiners) may harden the material and reduce creep deformation. This is one of the main design problems for parts made with Zn alloys, even at room temperature. In this work the mechanical behavior of a Zn-Cu-Ti low alloy is presented using tensile tests at different strain rates, as well as creep tests at different loads to obtain the value of the strain rate coefficient m in samples parallel and perpendicular to the rolling direction of the Zn strip. The microstructure of the alloy in its raw state, as well as heat treated at 250°C, is also analyzed, as the banded structure produced by rolling influences the strengthening mechanisms that can be achieved through the treatment parameters. |
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