Journal ArticleDOI
Stress corrosion cracking of maraging steel weldments
K. Y. Sastry,Ramaswamy Narayanan,C. R. Shamantha,S. Sundaresan,S.K. Seshadri,V.M. Radhakrishnan,K. J. L. Iyer,S. Sundararajan +7 more
TLDR
In this article, the authors investigated the stress corrosion characteristics of 18 wt-%Ni (MDN-250) maraging steel and its weldments made under different welding conditions.Abstract:
The stress corrosion characteristics of 18 wt-%Ni (MDN-250) maraging steel and its weldments made under different welding conditions have been investigated. The threshold stress intensity factor K ISCC in stress corrosion conditions has been determined in 3.5 wt-%NaCl environment for the base metal and weldments. The fractured surfaces were analysed to study the types of fracture during stress corrosion cracking in base and weld metals. Fracture toughness tests were carried out and the results obtained from these tests have been compared with K ISCC values.read more
Citations
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Journal ArticleDOI
Effect of 4-(N,N-diethylamino)benzaldehyde thiosemicarbazone on the corrosion of aged 18 Ni 250 grade maraging steel in phosphoric acid solution
TL;DR: In this paper, 4-(N,N-diethylamino)benzaldehyde thiosemicarbazone (DEABT) was studied for its corrosion inhibition property on the corrosion of aged 18 Ni 250 grade maraging steel in 0.67 M phosphoric acid at 30-50°C by potentiodynamic polarization, EIS and weight loss techniques.
Journal ArticleDOI
3,4-Dimethoxybenzaldehydethiosemicarbazone as corrosion inhibitor for aged 18 Ni 250 grade maraging steel in 0.5 M sulfuric acid
TL;DR: In this article, the corrosion inhibition of the aged 18 Ni 250 grade maraging steel in 0.5 M sulfuric acid by 3,4-dimethoxybenzaldehydethiosemicarbazone (DMBTSC) has been investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques.
Journal ArticleDOI
Friction stir welding: An alternative to fusion welding for better stress corrosion cracking resistance of maraging steel
TL;DR: In this article, a maraging steel, an ultra high strength steel, is welded using FSW process and it was observed that FSW joints demonstrated higher resistance to stress corrosion cracking (SCC) compared to both, base metal and gas tungsten arc weldments.
Journal ArticleDOI
Effect of cathodic polarisation on stress corrosion cracking behaviour of a Ni(Fe, Al)-maraging steel in artificial seawater
TL;DR: In this article, the effect of cathodic polarisation on stress corrosion cracking (SCC) behavior of peak-aged Ni(Fe, Al)-maraging steel in artificial seawater was investigated.
Journal ArticleDOI
Austenite reversion in 18% Ni maraging steel and its weldments
TL;DR: In this paper, a review of the published work on austenite reversion and its effects on properties and performance, covering both base metal and weld joints, is presented, where the authors analyze the impact of the reversion on the performance of the weld joints.
References
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Journal ArticleDOI
The physical metallurgy of maraging steels
TL;DR: Maraging steels are a class of high-strength steels characterised by very low carbon contents and the use of substitutional elements to produce age-hardening in iron-nickel martensites as mentioned in this paper.
Journal ArticleDOI
A study of the stress factor in corrosion cracking by use of the pre-cracked cantilever beam specimen
B.F. Brown,C.D. Beachem +1 more
TL;DR: In this article, a simple test to predict the effect of various small surface flaws on cracking of other specimens under various stresses, and the predictions are compared with experience with a martensitic steel of the AISI 4340 type.
Journal ArticleDOI
Effect of hydrogen environment on the notched tensile properties of T-250 maraging steel annealed by laser treatment
TL;DR: In this article, slow displacement rate tensile tests were performed to find out the influence of ageing condition and hydrogen-charging on the notched tensile strength and fracture characteristics of T-250 maraging steel aged at various conditions.
Journal ArticleDOI
Structure and corrosion resistance of oxides grown on maraging steel in steam at elevated temperatures
TL;DR: The microstructure of oxides formed on 250 maraging steel in steam at elevated temperatures was established as discussed by the authors, which consisted of at least two sub-layers, an innermost layer of austenitic phase and a layer of magnetite Fe 3 O 4.
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