Some studies on P91 steel and their weldments

C Pandey, MM Mahapatra, P Kumar, N Saini - Journal of Alloys and …, 2018 - Elsevier
In present research article, microstructure evolution in P91 steel and their weldments are
reviewed in as-virgin and heat treatment and creep exposure condition. The thermal stability …

Softening mechanism of P91 steel weldments using heat treatments

C Pandey, MM Mahapatra, P Kumar, F Daniel… - Archives of Civil and …, 2019 - Springer
The tungsten inert gas welded P91 steel welded joints were subjected to the two different
type of heat treatments including the postweld direct tempering (PWDT) and re-austenitizing …

[HTML][HTML] Insight into Type IV cracking in Grade 91 steel weldments

Y Wang, R Kannan, L Li - Materials & Design, 2020 - Elsevier
In this work, an insight into the premature Type IV cracking was undertaken to clarify its
mechanisms in Grade 91 steel pipe weldments. High-resolution microscopy observations of …

Role of dissimilar Ni-based ERNiCrMo-3 filler on the microstructure, mechanical properties and weld induced residual stresses of the ferritic/martensitic P91 steel …

S Kumar, VK Yadav, SK Sharma, C Pandey… - International Journal of …, 2021 - Elsevier
In the present investigation, a detailed microstructure and mechanical behaviour study for
P91 welded joint were investigated. The welded joint was produced using the Gas Tungsten …

Effect of post weld heat treatments on fracture frontier and type IV cracking nature of the crept P91 welded sample

C Pandey, MM Mahapatra, P Kumar - Materials Science and Engineering: A, 2018 - Elsevier
The research work explores the microstructure evolution and creeps rupture behavior of the
shielded metal arc welded joint of reduced activation ferritic/martensitic P91 steel plate in the …

[PDF][PDF] A review of effect of welding and post weld heat treatment on microstructure and mechanical properties of grade 91 steel

Y Merchant Samir - IJRET, 2015 - academia.edu
Today getting high thermal efficiency in thermal and nuclear power plant is a big challenge.
Many new material are developed. SA 335 grade 91 steel is modified high chrome-moly …

Microstructural characterization of simulated and actual constituent regions of P91 steel weldment

M Karuppiah, N Atikukke, V Muthukumaran - Welding International, 2024 - Taylor & Francis
In the present study simulated and the actual microstructures of the coarse grain, fine grain
and intercritical heat-affected zones of P91 steel weldment are characterized using electron …

Influence of post-weld heat treatment (PWHT) on the tensile behaviour of P91 weldments

T Jambo - 2023 - open.uct.ac.za
A key factor for successful installation of Grade 91 steel for high pressure-high temperature
applications in power plant is optimised welding and post weld heat treatment (PWHT) …

Engineering and Simulations to Investigate and Predict the Failure of the Four Commonly Used Flat Head Designs in Heat Recovery Steam Generators

M Asadi, J Henry, S Torkildson… - Pressure Vessels …, 2017 - asmedigitalcollection.asme.org
Failure has been observed to occur on grade P91 alloy flat head closures in Heat Recovery
Steam Generators (HRSG), operating at high temperature (> 538° C) and high pressure (> …

[PDF][PDF] INFLUENCE OF POST WELD HEAT TREATMENT ON MECHANICAL PROPERTIES OF MODIFIED 9Cr-1Mo-V STEEL

R Silambarasan, S Kumanan - researchgate.net
Advanced coal-fired power plant, operating at higher temperatures and pressures, can
achieve substantial improvements in thermal efficiency and hence reductions in carbon …