Conditions favoring carburization include a high gas phase carbon activity and _______ oxygen potential.

Nitriding layers are magnetic. Therefore, _________ should be checked for magnetism as an initial screening for nitriding.

Protection in a boiler from boiler feed water corrosion is accomplished by:

At high temperatures, metal components can slowly and continuously deform under load below the yield strength. This time dependent deformation of stressed components is known as _______?

Thermal fatigue cracks usually propagate _______ to the stress and they are usually dagger-shaped.