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
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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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Failure analysis of maraging steel fasteners used in nozzle assembly of solid propulsion system
TL;DR: In this paper, the failure was at head/shank junction in each of the three failed fasteners, and it was inferred that the failure occurred due to stress corrosion cracking.
Journal ArticleDOI
Corrosion Inhibition of the Annealed 18 Ni 250 Grade Maraging Steel in 0.67M Phosphoric Acid by 3,4-Dimethoxybenzaldehydethiosemicarbazone
T Poornima,J Nayak,AN Shetty +2 more
TL;DR: The effect of concentration of inhibitor and solution temperature on inhibition efficiency of the inhibitor was studied by means of potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques as discussed by the authors.
Journal ArticleDOI
Failure analysis of M250 maraging steel stud used in Flex Nozzle Control actuator bracket of solid propulsion system
Journal ArticleDOI
Corrosion inhibition of high strength maraging steel by cerium(III) ions in sulfuric acid solution
TL;DR: The influence of rare earth Ce(III) ions on the corrosion behavior of high strength maraging steel in 0.5 M sulfuric acid solution was studied by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques.
Journal ArticleDOI
Electrochemical Studies of Aluminium 7075 Alloy in Different Concentration of Acid Chloride Medium
Pruthviraj Rd,Rashmi M +1 more
TL;DR: The corrosion behavior of Al 7075 was investigated in Hydrochloric acid over a range of acid concentration electrochemical techniques like Tafel extrapolation and electrochemical impedance spectroscopy were started as discussed by the authors.
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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