Krypton Gas Penetrant Imaging — A Valuable Tool for Ensuring Structural Integrity in Aircraft Engine Components

摘要

This year marks the 27th anniversary of the first successful use of krypton gas penetrant imaging for the detection of cracks, casting porosity, hot tears, cold shuts, dross, etc., in aircraft engine components. In the late 1960s the US Air Force first applied this method to the detection of porosity in sleeve bearings used in the nose cones of T-34 turboshaft gas turbine engines (Figure 1).