Molybdenum and Tungsten alloy,2013-II
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- Category: Molybdenum knowledge
- Published on 26 June 2013
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Tungsten and rhenium are the two primary solid-solution alloys. The most common compositions are 30% tungsten (Mo-30W), 5% rhenium (Mo-5Re), 41% rhenium (Mo-41Re), and 47.5% rhenium (Mo-50Re).
With the exception of the Mo-30W alloy which is available as a vacuum-arc-cast product, these alloys are normally produced by powder metallurgy. The tungsten-containing alloys find application as components in systems handling molten zinc, because of their resistance to this medium.
They were developed as a lower-cost, lighter-weight alternative to pure tungsten and have served these applications well over the years. The 5% rhenium alloy is used primarily as thermocouple wire, while the 41% and 47.5% alloys are used in structural aerospace applications.
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