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Abstract:
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All the exciting work on developing new and better alloys has led older alloys,
such as AZ9l , being abandoned by researchers. lt is believed that the full potential of
AZ9l in automotive design has not been realized. Whatever works have been carried
out on AZ9lalloy to improve its mechanical properties are insufficient in terms of its
potential usage in auto industries. Due to the fact that AZ91 offers high room
temperature mechanical properties and good castability, still this alloy is a primary choice for the auto component manufactures. Small improvement in its creep
properties will have a huge impact in the transportation industries. Hence, in the
present work, “Influence of Si, Sb and Sr Additions on the Microstructure,
Mechanical Properties and Corrosion Behavior of AZ91 Magnesium Alloy”, an
attempt has been made to improve the creep properties of AZ9l alloy through minor
alloying elemental additions and to understand its strengthening mechanisms. The
effect of alloying additions on the ageing and tensile properties of AZ9l is also
studied. In addition to that, role of various intermetallics formed due to the alloying
additions on the corrosion properties of AZ9l alloy is investigated. |