RBI Degradation Mechanisms (DMs) Records

RBI Degradation Mechanisms records are used to determine the corrosion rate and damage factor caused on the component because of a particular DM. This topic provides an alphabetical list and description of the fields that exist for the Degradation Mechanisms family. The information in the table reflects the baseline state and behavior of these fields.

This family is enabled for site filtering, which means that records in this family can be assigned to a specific site, and will then only be accessible to users who are assigned to the same site and have the appropriate license and family privileges. See the Site Filtering section of the documentation for more information on using this feature.

Field	Data Type	Description	Behavior and Usage
Combined Consequence	Character	The category of the combined consequence of failure.	The value in this field is calculated by comparing the four consequence categories, and assigning the combined consequence category the same value as the most severe of the four. The value A indicates the most severe consequence category, and the value E indicates the least severe.
Deg Mech Comments	Character	Comments about the DM.	None
Degradation Mechanism	Character	A process that induces deleterious micro and macro material changes over time that are harmful to the material condition or mechanical properties.	This field contains the description of all the System Codes in the MI_DEGRADATION_MECHANISM_TYPES System Code Table.
Degradation Mechanism Description	Character	A short description of the degradation mechanism.	None
Inspection Priority (Unmitigated Risk)	Numeric	A value that represents the location of the asset on the risk matrix.	This number is between 1 and 25 and will drive the inspection planning results.
Probability of Failure	Character	Extent to which an event is likely to occur within the time frame under consideration. The mathematical definition of probability is a real number in the scale 0 to 1 and is attached to a random event.	None