Intergranular stress corrosion cracking behavior of types 308 and 316 stainless steel weld metals in a simulated boiling water reactor environment

2002 ◽  
Vol 33 (9) ◽  
pp. 2907-2919 ◽  
Author(s):  
Ikuhisa Hamada ◽  
Kiyoshi Yamauchi
Keyword(s):  
Stainless Steel ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Steel Weld ◽  
Intergranular Stress Corrosion ◽  
Cracking Behavior ◽  
Water Reactor ◽  
Weld Metals ◽  
Stainless Steel Weld ◽  
Intergranular Stress Corrosion Cracking

The Effect of Ferrite Content on Stress Corrosion Cracking in Duplex Stainless Steel Weld Metals at Room Temperature

CORROSION ◽  
1979 ◽  
Vol 35 (2) ◽  
pp. 45-54 ◽  
Author(s):  
W. A. BAESLACK ◽  
D. J. DUQUETTE ◽  
W. F. SAVAGE
Keyword(s):  
Stainless Steel ◽  
Weld Metal ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Room Temperature ◽  
Corrosion Cracking ◽  
Steel Weld ◽  
Weld Metals ◽  
Stainless Steel Weld ◽  
Type 304

Abstract Constant extension rate tests have been conducted on Type 304 stainless steel base metal specimens and on stainless steel weld metal specimens with ferrite contents of Ferrite Number 1, 3, 6, 11, 16, and 24, at room temperature in deaerated, 1 N HCI. Stress corrosion cracking in wholly austenitic Type 304 base metal occurs transgranularly, while cracking in duplex weld metal occurs either by the combined action of stress assisted ferrite dissolution and stress corrosion cracking (SCC) in the austenite or entirely by stress assisted dissolution of the ferrite. Ferrite content and distribution are important in determining both the stress corrosion susceptibility and crack morphology of duplex weld metals. The most susceptible duplex weld metals are those which exhibit a continuous or nearly continuous vermicular ferrite structure.

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