A protective coating system includes {HEAD ~ a nickel aluminum zirconium alloy coating} having {TAIL ~ beta phase nickel aluminum} and at least one phase selected from gamma phase nickel and the gamma prime phase nickel aluminum 
having
A protective coating system includes { HEAD ~ a nickel aluminum zirconium alloy coating } having { TAIL ~ beta phase nickel aluminum } and at least one phase selected from gamma phase nickel and the gamma prime phase nickel aluminum
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH