EFFECT OF AGING ON THE MICROSTRUCTURES AND MECHANICAL PROPERTIES OF C102 COPPER ALLOY
Aging of copper alloy was studied at different temperature and times. Tensile test and metallurgical investigation were carried out to study the effect on mechanical properties and the microstructures of copper alloy. It was observed that peak strength was obtained by specimen aged for 4 hours a...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | en |
| Published: |
MTUN UTeM
2013
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| Subjects: | |
| Online Access: | http://eprints.utem.edu.my/id/eprint/13102/1/Jet_1.pdf http://eprints.utem.edu.my/id/eprint/13102/ http://jet.utem.edu.my |
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| Summary: | Aging of copper alloy was studied at different temperature and times.
Tensile test and metallurgical investigation were carried out to study the
effect on mechanical properties and the microstructures of copper alloy. It
was observed that peak strength was obtained by specimen aged for 4 hours
at 450 oC, with yield strength of 542.38 MPa and ultimate tensile strength
of 559.69 MPa. Peak strength was achieved with an increased strain field in
the structure produced by coherent precipitates. The finer grain structure
was observed in this stage which led to strain hardening. Lowest strength
was recorded on specimen aged for 8 hours at 450 oC, with yield strength of
441.66 MPa and ultimate tensile strength of 452.24 MPa. The reduction of
strength was the effect of overaging, which was due to coarsening of grain
structure and elimination of precipitation coherency. |
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