Effect of adding Ag on tensile and microstructure properties of zinc alloy
Silver additions between 0.03 wt.% to 0.50 wt.% were made to the Zn- 20Sn (wt.%) in an attempt to develop Zinc based alloy for application and improvement in giftware industry. In this study, we investigated the effect of Ag addition on Zn based alloy and mechanical properties of Zn-Sn-Ag al...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IJENS Publishers
2012
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/26432/ http://irep.iium.edu.my/26432/ http://irep.iium.edu.my/26432/ http://irep.iium.edu.my/26432/1/126103-4848-IJET-IJENS.pdf |
| Summary: | Silver additions between 0.03
wt.% to 0.50 wt.% were made to the Zn-
20Sn (wt.%) in an attempt to develop
Zinc based alloy for application and
improvement in giftware industry. In this
study, we investigated the effect of Ag
addition on Zn based alloy and
mechanical properties of Zn-Sn-Ag
alloys with variation of Ag contents. The
measured mechanical properties are
tensile strength and percentage
elongation. It was found that addition of
Ag over the entire range of
concentrations has a useful effect on
tensile properties of the alloy.
Furthermore, the percentage elongation
and tensile strength of the samples also
increases with further increase in Ag
content. Alloy containing 0.50 wt.%
showed the highest value in both tensile
strength and percentage elongation.
Thus, the mechanical properties of the
alloy improved with increasing Ag
percentage up to 0.50 wt. %. On the other
hand, increasing Ag content also
significantly affected the fracture surface
of the alloys. The surface showed a
mixed mode of fracture exhibiting ductile
failure and brittle failure. Metallographic
studies showed that the addition of Ag
resulted in microstructure modifications
of the alloy involving the formation of
intermetallic compound identified as
Ag3Sn and AgZn which decrease the
precipitation of Zn in Sn matrix. The
microstructure results also affected the
mechanical properties of alloy by the
presence of the elements. |
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