A sputtering method 8, wherein said sprayed coating includes an arc spraying coating film of aluminum and a plasma spraying coating film of {HEAD ~ an aluminum alloy} containing {TAIL ~ magnesium} 
A sputtering method 8 , wherein said sprayed coating includes an arc spraying coating film of aluminum and a plasma spraying coating film of { HEAD ~ an aluminum alloy } containing { TAIL ~ magnesium }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL