Treated coated article and process of treating a coated article

A process of treating a coated article, the process comprising:

• commencing a service period of a gas turbine, the service period being the period throughout which operation of the gas turbine is suspended, the gas turbine including the coated article having a MCrAlY coating;
• during the service period, applying an aluminide treatment including at least one of NiAl and Ni2Al3 onto the MCrAlY coating to form a treated MCrAlY coating, the aluminide treatment diffusing into the MCrAlY coating by a depth of at least 1 mil, the depth of the MCrAlY into which the aluminide treatment has diffused possessing a strain range of about 4%;
• and
• outwardly forming (β-phase material from the MCrAlY coating into the treatment;
• wherein the applying is selected from the group consisting of soaking, spraying, brushing, dipping, pouring, and combinations thereof, and the process is performed without stripping any MCrAlY from the coated article or re-coating the coated article with MCrAlY during the service period.