High-Strength Steels with Improved Sulfide Stress Cracking Resistance

CORROSION ◽  
1986 ◽  
Vol 42 (1) ◽  
pp. 54-61 ◽  
Author(s):  
A. Chavane ◽  
M. Habashi ◽  
G. M. Pressouyre ◽  
J. Galland
Keyword(s):  
High Strength Steels ◽  
High Strength ◽  
Cracking Resistance ◽  
Stress Cracking ◽  
Sulfide Stress ◽  
Sulfide Stress Cracking

Influence of Density and Distribution of Intergranular Sulfides on the Sulfide Stress Cracking Properties of High Strength Steels

CORROSION ◽  
1978 ◽  
Vol 34 (2) ◽  
pp. 47-52 ◽  
Author(s):  
A. JOSHI
Keyword(s):  
Grain Boundaries ◽  
High Strength Steels ◽  
High Strength ◽  
Stress Cracking ◽  
Scanning Auger Microprobe ◽  
Sulfide Stress ◽  
Second Phases ◽  
Sulfide Stress Cracking ◽  
Minimum Stress ◽  
Boundary Chemistry

Abstract The common occurrence of sulfide stress cracking failures of many steels in the intergranular mode suggests a need for a better understanding of the grain boundaries, particularly the boundary chemistry. The boundary chemistry of selected high strength steels is correlated to the minimum stress at failure in hydrogen sulfide solutions at room temperature. The technique of Auger electron spectroscopy (AES) in a scanning Auger microprobe was employed to study grain boùndary composition and distribution of second phases at fresh fracture surfaces. The results indicate that S and Mn, precipitated in the form of a thin film of (Fe, Mn)S or P present at grain boundaries degrade the SSC properties of the material.

Review and Critical Assessment of Hardness Criterion to Avoid Sulfide Stress Cracking in Pipeline Welds

2016 ◽  
Author(s):  
Yuji Kisaka ◽  
Adrian P. Gerlich
Keyword(s):  
Hydrogen Permeability ◽  
High Strength Steels ◽  
High Strength ◽  
Homogeneous Microstructure ◽  
High Hydrogen ◽  
Natural Gas Pipelines ◽  
Stress Cracking ◽  
Weld Metals ◽  
Sulfide Stress ◽  
Sulfide Stress Cracking

Although employing high strength steels in pipelines provides many benefits, it is difficult to satisfy all required mechanical properties simultaneously because some are potentially at odds with each other. Additionally, when new natural gas pipelines are constructed for severe sour service, the hardness must be below 248 Vickers to avoid sulfide stress cracking (SSC) regardless of pipe grades, and this has been standardized by NACE and applied for approximately five decades. On the other hand, the relevance of this hardness criterion has been controversial. This paper proposes three possible methods to improve SSC resistance for weld metals; 1) reducing impurities, 2) producing fine and homogeneous microstructure, 3) controlling microstructures that characterize high hydrogen permeability, solubility, and low diffusivity. This paper states that reducing impurities and producing fine and homogeneous microstructure would reduce SSC susceptibility and an acicular ferrite would be the effective microstructure to increase SSC resistance for weld metals.

Effects of Mn, P, and mo on sulfide stress cracking resistance of high strength low alloy steels

1988 ◽  
Vol 19 (9) ◽  
pp. 2171-2177 ◽  
Author(s):  
Hitoshi Asahi ◽  
Yasuo Sogo ◽  
Masakatsu Ueno ◽  
Hirokichi Higashiyama
Keyword(s):  
High Strength ◽  
Low Alloy Steels ◽  
Cracking Resistance ◽  
Stress Cracking ◽  
Sulfide Stress ◽  
Alloy Steels ◽  
Sulfide Stress Cracking
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