Do airliners use light alloy wheels, like cars do? Do large and small airliners - up to jumbos like the Boeing 747 and Airbus A380 -
 use light alloy wheels in their landing gear to reduce weight?

If not, why not? Are there reasons unrelated to weight? Do extreme temperatures and rapid temperature changes affect the material in a way that could pose a danger to the aircraft?
Here's a description of small aircraft wheels:  


  Available in 4", 5" and 6", these wheel &amp; brake assemblies are cast from 535.2 aluminum alloy for superior strength and corrosion resistance.


And some info on 535.2 AL alloy
http://www.matweb.com/search/datasheettext.aspx?matguid=9347211fc1e1476988dfee51d8241c3c