{HEAD ~ The metallic substrate} and or layer may be made from an alloy such as a Cobalt or {TAIL ~ a Nickel based superalloy} 
{ HEAD ~ The metallic substrate } and or layer may be made from an alloy such as a Cobalt or { TAIL ~ a Nickel based superalloy }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL