Environmental Effects of Anthraquinone Derivatives on the Resistance to SCC of AISI 4340 Steel in Aqueous Chloride Solutions

CORROSION ◽  
1969 ◽  
Vol 25 (10) ◽  
pp. 434-437
Author(s):  
A TIRMAN ◽  
PAUL FUGASSI ◽  
E. G. HANEY
Keyword(s):  
Sodium Chloride ◽  
Atomic Hydrogen ◽  
Chloride Solution ◽  
Reduced Form ◽  
Aisi 4340 Steel ◽  
4340 Steel ◽  
Anthraquinone Derivatives ◽  
Aqueous Chloride ◽  
Derivatives Of ◽  
Aisi 4340

Abstract Polyhydroxy derivatives of anthraquinone adsorbed on AISI 4340 steel foil increase the resistance of the foil to stress corrosion cracking in aerated 0.6 M aqueous sodium chloride acidified with hydrogen chloride to pH 1.5. It is suggested that these compounds act as acceptors of atomic hydrogen or of other intermediates involved in the electrolytic discharge of hydrogen and that the reduced form of the compound is re-oxidized to its original state by dissolved oxygen in the sodium chloride solution.

Environmental Effects of Sulfur and Sulfur Compounds on the Resistance to Stress Corrosion Cracking of AISI 4340 Steel in Aqueous Chloride Solutions

CORROSION ◽  
1969 ◽  
Vol 25 (8) ◽  
pp. 342-344 ◽  
Author(s):  
A. TIRMAN ◽  
E. G. HANEY ◽  
PAUL FUGASSI
Keyword(s):  
Sodium Chloride ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Prior Treatment ◽  
Aisi 4340 Steel ◽  
Aqueous Sodium ◽  
4340 Steel ◽  
Resistance To Stress ◽  
Aisi 4340

Abstract The resistance to stress corrosion cracking of AISI 4340 steel foil in 0.6M aqueous sodium chloride, acidified to pH 1.5 with hydrochloric acid, is greatly decreased by prior treatment of the specimens for short periods of time with aqueous and nonaqueous solutions of sulfur, organic and inorganic sulfides, sulfur dioxides, and the inorganic salts of sulfurousand sulfuric acids. It is suggested that this prior treatment produces sulfided areas which are inhibitors of the combination of atomic hydrogen into molecular hydrogen. The decreased resistance to stress corrosion cracking is thus attributed to hydrogen embrittlement. If the stress corrosion cracking test is made in 0.6M aqueous sodium chloride, adjusted to an initial pH of 8, the effect of a prior sulfiding treatment is small. The formation of such sulfided areas in practice result from the exposure of 4340 steels to industrial atmospheres which may contain hydrogen sulfide, sulfur dioxide, and elemental sulfur.

Influence of Minimum Quantity Lubrication on Grinding Performance of Annealed AISI 4340 Steel

2017 ◽  
Vol 31 (2) ◽  
pp. 17 ◽  
Author(s):  
Sirsendu Mahata ◽  
Ankesh Samanta ◽  
Joydip Roy ◽  
Bijoy Mandal ◽  
Santanu Das
Keyword(s):  
Minimum Quantity Lubrication ◽  
Aisi 4340 Steel ◽  
Minimum Quantity ◽  
Grinding Performance ◽  
4340 Steel ◽  
Aisi 4340
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