WT5BZ]The failure feature is producing the black protruding corrosion spot on the oxide scale for the aluminide coating on the Co base superalloy DZ40M during high temperature oxidation in air.

• DZ40 M钴基合金铝化物涂层在高温氧化过程中的失效特点,是在氧化膜之上产生隆起的深色蚀点。