Results 71 to 80 of about 1,368 (215)

Thermal spray coatings for molten salt facing structural parts and enabling opportunities for thermochemical cycle electrolysis

open access: yesEngineering Reports, Volume 6, Issue 9, September 2024.
The review is in relation to coating materials that can withstand thermochemical cycle corrosive environments. The overall assessment is that very limited sets of coating‐substrate system are likely to survive for an extended period in the high temperature thermochemical environment. Recommended solution is to use special metals coated with metallic or
Nadimul Haque Faisal   +10 more
wiley   +1 more source

The fatigue crack growth behavior of hydrogenated 9Cr‐1Mo steel: An experimental and numerical study

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 47, Issue 5, Page 1677-1695, May 2024.
Abstract This research investigates the fatigue crack evolution in P91 steel through experiments and extended finite element method (XFEM) simulation for as‐received and hydrogenated conditions. Hydrogen pre‐charging is performed using a constant current electrochemical method in 1 M sulfuric acid solution.
Mahesh Bharati   +3 more
wiley   +1 more source

The development of advanced creep constitutive equations for high chromium steel P91 at low stress range

open access: yes, 2013
Diffusion dominates the creep deformation at low stress range for high chromium steel P91. Brittle creep fracture is caused by cavity nucleation, growth and coalescence of cavities and large precipitates (Laves phase and M23C6) at grain boundary under ...
Xu, Qiang   +3 more
core  

Microstructure evolution and deformation mechanisms of service-exposed P91 steel via interrupted uniaxial creep tests at 660 °C

open access: yes
Creep degradation behaviour of service-exposed P91 steel is evaluated during interrupted creep tests at 660 °C and 80 MPa using a number of material characterization techniques including transmission electron microscopy (TEM), scanning electron ...
Shipway, P. H.   +4 more
core   +1 more source

Influence of AC TIG welding parameters on microstructure of P91 steel

open access: yes, 2021
U teorijskom dijelu rada dan je pregled metalnih materijala za rad pri visokim temperaturama. Opisane su promjene koje se događaju u čelicima uslijed rada pri visokim temperaturama.
Škrtić, Mislav
core  

Optimization‐improved thermal–mechanical simulation of welding residual stresses in welded connections

open access: yesComputer-Aided Civil and Infrastructure Engineering, Volume 39, Issue 9, Page 1275-1293, 1 May 2024.
Abstract This paper presents a novel computer‐aided computational framework to determine the optimum shape parameters in a welding heat source model using a coupled supervised Gaussian process regression (GPR) and genetic algorithm (GA) approach in estimating the welding residual stresses. The experimental X‐ray diffraction (XRD) approach validates the
Le Wang, Xudong Qian
wiley   +1 more source

Preliminary analysing of experimental data for the development of high Cr Alloy Creep damage Constitutive Equations

open access: yes, 2012
This conference paper presents the current research of preliminary analysing of experimental data for the development of high Cr Alloy Creep damage Constitutive Equations (such as P91 alloy). Firstly, it briefly introduces the background of general creep
Xu, Qiang   +4 more
core  

Microstructure and Oxidation Behavior of C‐HRA‐5 Austenitic Heat‐Resistant Steel in Air at the Temperature Range of 650–750 °C

open access: yesAdvanced Engineering Materials, Volume 26, Issue 6, March 2024.
Isothermal oxidation of the austenitic heat‐resistant steel C‐HRA‐5 (a new austenitic heat‐resistant steel) conforms to the parabolic weight gains. This study provides a solid foundation to disclose the possible oxidation of C‐HRA‐5 austenitic heat‐resistant steel at high temperatures This study investigates the oxidation behavior and microstructure ...
Jianwen Jia   +10 more
wiley   +1 more source

An Incremental Physically-Based Model of P91 Steel Flow Behaviour for the Numerical Analysis of Hot-Working Processes

open access: yesMetals, 2018
This paper is aimed at modelling the flow behaviour of P91 steel at high temperature and a wide range of strain rates for constant and also variable strain-rate deformation conditions, such as those in real hot-working processes.
Alberto Murillo-Marrodán   +5 more
doaj   +1 more source

Application of Ar-He shielding gas mixture for welding of P91 steel [PDF]

open access: yes, 2019
U teoretskom dijelu rada opisani su čelici koji su za vrijeme rada izloženi visokim temperaturama te je napravljen pregled promjena koje se događaju kod ovih čelika zbog njihovih specifičnih uvjeta rada.
Jurgec, Kristijan
core  

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