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Article
Analysis of Gas Metal Arc Welding Process Using Improved Complete Ensemble Empirical Mode Decomposition with Adaptive Noise
The gas metal arc welding (GMAW) process, prevalent in construction and fabrication sectors, traditionally relies on postproduction evaluations, which are both costly and time-consuming. This study proposes a ...
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Article
Application of continuous wavelet transform based on Fast Fourier transform for the quality analysis of arc welding process
SMAW (Shielded Metal Arc Welding) and GMAW (Gas Metal Arc Welding) are two of the most prominent welding processes commonly utilized in almost all types of modern industries. Among various aspects of these pro...
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Article
Integrity Assessment of 10Cr Ferritic Steel/Alloy 617M Dissimilar Metal Weld Joint under Creep Condition
Integrity assessment of 10Cr ferritic steel/alloy 617M dissimilar metal weld joint (DMWJ) fabricated from hot-wire narrow-gap TIG (NG-TIG) welding process using alloy 617 filler wire (ERNiCrCoMo-1) was carried...
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Article
Hybrid Welding Process in Lieu of Conventional Practices for Fabrication of Austenitic Stainless Steel AISI 304L Components in Nuclear Facility
Gas Tungsten Arc Welding (GTAW) is widely used in nuclear industry owing to its better root quality and greater control of weld pool in real time. However, the process is quite slow (75-100 mm/min) compared to...
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Article
Microstructure and mechanical properties characterization of aged and repair welded Alloy 617M
A chemistry-controlled variant of nickel-based Alloy 617 (UNS N06617) designated as Alloy 617M is the candidate structural material for superheater header and tubing and high pressure and intermediate pressure...
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Article
Failure Analysis of Large Stroke Welded Disk Bellows in Storage
Five out of ten welded disk bellows manufactured of AM350 stainless steel for the control rod drive mechanism of the fast breeder test reactor showed an increase in leak rate using helium leak testing from 10−9 t...
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Article
Influence of Heat Treatment Condition on Tensile Properties of AM350 Stainless Steel
AM350 is a candidate material for welded disc bellows in nuclear applications. The assessment of tensile deformation behavior of AM350 stainless steel in two different heat treatment conditions, solution annea...
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Article
Map** of Creep Strain in Notched Specimens of Boron-Added P91 Steel
Boron-added modified 9Cr-1Mo (P91B) steel is being considered as an alternate candidate material for steam generators of sodium cooled fast reactors. As components in service consist of discontinuities in geom...
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Chapter
Structural Materials for Molten Salt Reactors
Molten salt reactors (MSR) are Generation-IV fission reactors. MSR is a class of nuclear fission reactors in which the coolant is a mixture of molten salts. They are very compact design of nuclear reactors. Ma...
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Article
Corrosion Behaviour of Plasma-Sprayed Nickel Coating on Type 316L Stainless Steel in High-Temperature Molten FLiNaK Salt
Molten fluoride salts are proposed as coolant in nuclear and solar power plants. It is essential to study material compatibility of various candidate structural materials and coatings for molten salt applicati...
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Article
Tensile Behavior of Incoloy-800HT Exposed to High-Temperature Molten FLiNaK Salt and Thermal Aging
In the present study, effect of prolonged exposure of Incoloy-800HT to molten FLiNaK salt (Fluorides of Li, Na and K) at 923 K on its tensile properties at 300 K (ambient temperature) was investigated. For thi...
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Article
Binary blended fly ash concrete with improved chemical resistance in natural and industrial environments
This study reports the enhanced chemical resistance of a blended concrete mix (CFNI) made with 40 wt.% fly ash, 2 wt.% nanoparticles, and 2 wt.% sodium nitrite inhibitor as partial replacement of cement agains...
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Article
Remedies for hydrogen-embrittlement on Grade-91 steel weld joint during long delay in PWHT
This paper discusses the effect of different combinations of preheating and post-heating on the corrosion and hydrogen embrittlement of Grade-91 steel weld joint in the as-welded condition. Though these welds ...
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Article
Characterization of Interfacial Microstructure and Mechanical Properties of the Diffusion Bonded CP-Ti to AISI 304L Stainless Steel
This study reports the influence of diffusion kinetics on the interfacial microstructure and its significance in the mechanical properties of the diffusion bonded titanium (Ti) to 304L stainless steel (SS). Th...
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Article
Prediction of Creep Behaviour of 316LN SS Under Uniaxial and Multiaxial Stress State Using Kachanov–Rabotnov Model at 923 K
Finite element analysis coupled with the continuum damage mechanics-based Kachanov–Rabotnov (KR) model has been carried out to describe the creep deformation and damage behaviour of 316LN austenitic stainless ...
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Chapter and Conference Paper
Creep Deformation Behaviour of Modified 9Cr-1Mo Steel Clad Tubes
Modified 9Cr-1Mo ferritic steel has been considered as the cladding tube material in Metallic Fuel Fast Reactor, in view of its inherent void swelling resistance. Creep studies were conducted on modified 9Cr-1...
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Article
Stretchability of Commercial Purity Titanium Sheet
The article presents the results of tests to assess stretchability of commercial purity titanium sheet. The plastic strain ratio (r value) indicates strong normal anisotropy and weak planar anisotropy in the plas...
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Article
Evolution of Microstructure during Welding Simulation of Boron Modified P91 Steel
Formation of heat affected zone (HAZ) when welding is considered as weakest link across transition joint. Characterization of this zone is a key issue to reduce the effect of embrittlement; hence appropriate w...
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Article
Softening Mechanisms and Microstructural Evolution in a Low Stacking Fault Energy Material Between Warm and Hot Working Temperatures
A low stacking fault energy material is subjected to warm working as well as hot working, i.e. in the temperature range 873 K (600 °C)–1173 K (900 °C). The evolution of microstructure is quantified using avera...
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Article
Liquation cracking susceptibility of partially melted zone in 304B4 SS multipass weldments
AISI 304B4 stainless steel (SS) containing 1.3 wt% boron is reported to be weldable under moderate restraint forces provided welding parameters are chosen carefully. However, during fabrication of components, ...
