A. Moitra
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View article: Dynamic Deformation Characteristics of AISI Type 316LN Stainless Steel with Varying Nitrogen Content
Dynamic Deformation Characteristics of AISI Type 316LN Stainless Steel with Varying Nitrogen Content Open
The dynamic deformation characteristics of AISI type 316LN stainless steel (316LN) with five different nitrogen contents (0.07, 0.11, 0.12, 0.14, and 0.22 wt%) have been investigated at intermediate strain rates. The experiments were condu…
View article: Effect of Environment on the Fatigue Crack Growth Behavior of Nitrogen-Alloyed Stainless Steel
Effect of Environment on the Fatigue Crack Growth Behavior of Nitrogen-Alloyed Stainless Steel Open
The effect of the environment on the fatigue crack growth (FCG) behavior of SS316L(N) steel, under Constant R and Constant K max test conditions, has been analyzed using the two-parametric approach that considers amplitude Δ K and the maxi…
View article: Application of an Instability‐Based Fracture Model for Prediction of Crack Initiation in Modified 9Cr–1Mo Steel
Application of an Instability‐Based Fracture Model for Prediction of Crack Initiation in Modified 9Cr–1Mo Steel Open
Ductile fracture of modified 9Cr–1Mo steel was investigated using smooth and notched bar tension tests. Round and flat notched specimens with varying notch acuity ratio were used to investigate the influence of stress state on the fracture…
View article: Effect of Welding Process on Microstructure and Mechanical Properties of Boron Containing Modified 9Cr-1Mo Steel
Effect of Welding Process on Microstructure and Mechanical Properties of Boron Containing Modified 9Cr-1Mo Steel Open
The influence of Shielded Metal Arc (SMA) welding and Activated Tungsten Inert Gas (A-TIG) welding on the microstructure and mechanical properties of boron containing Modified 9Cr-1Mo steel has been investigated. The tensile strengths of S…
View article: Effect of Load Ratio on Fatigue Crack Growth Behavior of SS316LN using Two-Parameter (ΔK and Kmax) Model
Effect of Load Ratio on Fatigue Crack Growth Behavior of SS316LN using Two-Parameter (ΔK and Kmax) Model Open
Fatigue crack growth (FCG) behavior of SS316L (N) with 0.12 wt.% nitrogen has been studied with different load ratios at 300 K and 823 K in Paris and the threshold region. It is observed that, with increasing load ratio, the crack growth r…
View article: Investigation on estimation of fracture resistance of SS 316 LN welds subjected to various aging conditions and test temperatures
Investigation on estimation of fracture resistance of SS 316 LN welds subjected to various aging conditions and test temperatures Open
In this study, estimation of fracture resistance (K1c) was carried out for SS 316 LN welds subjected to various aging conditions. The welds were aged at 370, 475 and 550 °C and for 1000-20,000 h durations and were tested at room temperatur…
View article: Effect of Temperature and Ageing on Fracture Toughness of Alloy 617M
Effect of Temperature and Ageing on Fracture Toughness of Alloy 617M Open
In recent years, Advanced Ultra Super Critical (AUSC) plants have used Ni-Cr-Co-Mo based alloy 617M for high-temperature components like steam piping and rotors, where material resistance against fracture after prolonged exposure in a host…
View article: The role of crystallographic orientation of martensitic variants on cleavage crack propagation
The role of crystallographic orientation of martensitic variants on cleavage crack propagation Open
Cleavage crack propagation has been investigated in a low-carbon lath-martensitic steel using electron back-scattered diffraction technique. The ability of different martensitic boundaries within prior-austenite grain, such as sub-block, b…