Page 247 - Corrosion Engineering Principles and Practice

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Wear ( j = 13)

Fatigue ( j = 12)

Submodes of IGC Pitting ( j = 11)

Wastage AkIGC ( j = 10) ( j = 9)

Modes (MD j ) and Submodes (SD j ) to be Considered AcIGC HPIGC PbSCC ( j = 8) ( j = 7) ( j = 6)

Submodes of SCC

MRSCC AkSCC ( j = 5) ( j = 4) Abbreviations used are low potential (LP), high potential (HP), mid-range pH (MR), alkaline (AK), lead (Pb), stress corrosion cracking (SCC), are intergranular corrosion (IGC).

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