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Characterisation of dissimilar P91 and P92 steel welds joint
Materials at High Temperatures, 2018In the present study, dissimilar weld joint was prepared using the P91 and P92 steel plate of 8-mm thickness, using the multi-pass gas tungsten arc (GTA) welding with filler (weld 1) and autogenous...
Chandan Pandey +2 more
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High Temperature Deformation Behavior of P92 Steel
Transactions of the Indian Institute of Metals, 2015The ferritic-martensitic steels are superior steels based on the potential properties that they possess; especially, the elevated temperature properties. Among these ferritic-martensitic steels, Cr–Mo–W steel is a candidate structural material for high temperature applications such as future advanced reactors and aerospace applications.
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Study on High Temperature Creep Behaviors of P92 Steel
Key Engineering Materials, 2010The creep experiments are performed under the various stresses at 595°C, 610°C, 640°C and 670°C for P92 steel which broadly used in USC plant pipeline. The specimens are taken from the extrados part of a new manufactured main steam elbow. A series of integrated creep curves are obtained, and the maximal test time last over 13000h.
Naiqiang Zhang +3 more
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Microstructural Evolution of P92 Steel During Long-Term Aging
Journal of Failure Analysis and Prevention, 2017The mechanical properties and microstructure evolution of P92 steel were investigated after aging up to 11,000 h at 923 K. Charpy impact and tensile tests were carried out to study the strength and ductility of aged P92 steel. In addition, microstructure evolution of the samples during long-term aging was investigated with X-ray diffraction, optical ...
Ning Sun +3 more
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Hot Deformation Behavior and Hot Processing Map of P92 Steel
Advanced Materials Research, 2010Hot-compression and hot-tension experiments were conducted on a Gleeble-1500D thermal-mechanical simulator. The constitutive equation was presented by calculating the stress exponent, activation energy and Zemer-Hollomon parameter during the hot compression.
Shu Li Sun, Min Gang Zhang, Wen Wu He
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Corrosion behavior of ferritic/martensitic steel P92 in supercritical water
The Journal of Supercritical Fluids, 2009Abstract The corrosion behavior of a ferritic/martensitic steel P92 exposed to supercritical water (SCW) at 500–600 °C and 25 MPa was investigated by means of gravimetry, scanning electron microscope/energy dispersive X-ray spectroscopy and X-ray diffraction.
Kaiju Yin +4 more
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Creep Crack Growth in P92 and P122 Alloy Steel Weldment
Key Engineering Materials, 2005The structures connected by welding are fractured often in Heat Affected Zone (HAZ) when cracks grow under high-temperature and high-pressure conditions. In this study, the creep crack growth tests of P92 and P122 steels were performed and the creep fracture characteristics were evaluated. Degradation rate by cavities was investigated and the influence
C.S. Jeong, Si Yon Bae, Byeong Soo Lim
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Creep behavior and microstructural damage of martensitic P92 steel weldment
Materials Science and Engineering: A, 2008Abstract Creep rupture and creep crack growth of the heat-affected zones (HAZs) of P92(9Cr–2W) steel weldment are compared with those of base metal. From metallurgical investigation, creep cavities were observed at intercritical HAZs. The strain rate of the HAZ was faster than that of the base metal.
Bumjoon Kim +2 more
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Precipitate phases in ferritic/martensitic steel P92 after thermomechanical treatment
Journal of Nuclear Materials, 2018Abstract Thermomechanical treatment (TMT) can effectively improve the mechanical properties of 9–12% Cr ferritic/martensitic (F/M) steels. To understand the effect of TMT on the creep properties of the steels, precipitate phases in the steels produced by TMT require investigations.
Zhiqiang Xu +4 more
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Oxide scale damage and spallation in P92 martensitic steel
Materials at High Temperatures, 2000Abstract9 Cr martensitic steels are widely used in high temperature steam environments for their combination of creep strength and oxidation resistance. These materials are pushed to their limit in the quest for higher efficiencies in boilers and steam turbines and loss of the protective oxide scale may result in premature failure of critical ...
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