Page 246 - Corrosion Engineering Principles and Practice
P. 246
C h a p t e r 7
220
Submodes of IGC
Modes (MD j ) and Submodes (SD j ) to be Considered
Submodes of SCC
MRSCC Wear Fatigue Pitting Wastage AkIGC AcIGC HPIGC PbSCC AkSCC ( j = 13) ( j = 12) ( j = 11) ( j = 10) ( j = 9) ( j = 8) ( j = 7) ( j = 6) ( j = 5) ( j = 4) Abbreviations used are low potential (LP), high potential (HP), mid-range pH (MR), alkaline (AK), lea
AcSCC ( j = 3)
HPSCC ( j = 2)
LPSCC ( j = 1) Matrix for Organizing Mode-Location Cells
OD x x x x x x x
ID x x x x
Locations for Analysis LA i Tubular expansion (i = 1) Tubular expansion (i = 2) Top of tube sheet (i = 3) Top of tube sheet (i = 4) Sludge (i = 5) Free span (i = 6) Free span (i = 7) Tube support (hot leg) (i = 8) Tube support (cold leg) (i = 9) U-Bend (i = 10) U-Bend A