Environmental embrittlement of nickel and nickel-base alloys - an analogy to steels and austenitic stainless steels
Hydrogen embrittlement characteristics, especially pertinent to sulfide stress cracking, or steels has been investigated to a great extent. Investigations of hydrogen embrittlement and sulfide stress cracking of nickel and nickel-base alloys have not been quite as extensive as in the case of steels. However, there are many areas of similarities between the behaviours of the two alloy systems which are discussed in this paper. These include the effect of applied stress, strength, temperature, strain rate, and impurity segregation. Areas of dissimilarities are also pointed out. In the area of stress corrosion cracking, especially involving chloride solutions, there are many parallels between the behaviours of austenitic stainless steels and nickel-base alloys. These include the effects of oxygen and chloride, temperature, H/sub 2/S, and composition. An appreciation of these similarities can lead to a better understanding of the environmental cracking behaviour of nickel and nickel-base alloys and point out the aspects needing further investigation.
- Research Organization:
- Cabot Corp., Kokomo, IN 46901
- OSTI ID:
- 6872961
- Journal Information:
- J. Mater. Energy Syst.; (United States), Vol. 8:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AUSTENITIC STEELS
CRACK PROPAGATION
HYDROGEN EMBRITTLEMENT
STRESS CORROSION
CHLORIDES
CORROSIVE EFFECTS
HYDROGEN SULFIDES
NICKEL
NICKEL BASE ALLOYS
OXYGEN
STAINLESS STEELS
CHEMICAL COMPOSITION
IMPURITIES
STRAIN RATE
TEMPERATURE EFFECTS
ALLOYS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CORROSION
CORROSION RESISTANT ALLOYS
ELEMENTS
EMBRITTLEMENT
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
METALS
NICKEL ALLOYS
NONMETALS
STEELS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENTS
360105* - Metals & Alloys- Corrosion & Erosion
360103 - Metals & Alloys- Mechanical Properties