Corrosion failure analysis

S. W. Borenstein and P. B. Lindsay. MIC (microbiologically influenced corrosion) failure analysis. Mater Performance, 33(4) 43-45, April 1994. 

These latter reasons make it essential in corrosion failure analysis to know the "history of the failed article. 

FiG. 4—Corrosion failure analysis in the CPI [4]. Copyright 1993 by NACE International. All rights reserved by NACE reprinted by permission. 

An application of the compiled framework could be to test one s skills against the experts as illustrated in Fig. 7.12. Another application of this practical correlation would be to use the framework of factors versus forms for archiving data in an orderly manner. Analysis of numerous corrosion failure analysis reports has revealed that information on important variables is often lacking [13]. The omission of important information from corrosion reports is obviously not always an oversight by the professional author. In many cases, the desirable information will simply not be (readily) available and require a special investigation to be completed. 

Failure analysis. Often, for a corrosion-related failure, data from the probes are examined to look for telltale signs that could have led to detection of the failure. In some cases, evidence can be found that process changes were occurring which led to the failure. This does not mean that the probes should have detected the failure itself. Determination of an imminent corrosion-related failure is not possible, even with the most advanced monitoring system. 

Most applications of LIMS are in failure analysis. A typical microanalytical failure analysis problem, for example, may involve determinating the cause of corrosion in a metallization line of an integrated circuit. One can achieve this by performing an elemental survey analysis of the corroded region. Since it is not always known which elements are normal constituents of the material in question and which are truly contaminants, the vast majority of these analyses are performed by comparing the elemental make-up of the defective region to that of a control region. The com-... 

Corrosion Testing, Detection, Monitoring and Failure Analysis... 

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