Results 141 to 150 of about 541 (179)
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Effect of long-term service on the precipitates in P92 steel
International Journal of Minerals, Metallurgy, and Materials, 2018The precipitates in P92 steel after long-term service in an ultra-supercritical unit were investigated by field-emission scanning electron microscopy and transmission electron microscopy and were found to mainly consist of M23C6 carbides, Laves phase, and MX carbonitrides. No Z-phase was observed.
Yan-ping Zeng +4 more
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CREEP BEHAVIOR AND LIFE EVALUATION OF AGED P92 STEEL
International Journal of Modern Physics B, 2006Creep strength and life of material is closely related with the microstructural characteristics. Components used under creep condition for long time are unable to maintain the stability of microstructure and experience degradation of material. From this viewpoint, it is necessary for safety and residual life of power plant to investigate creep ...
BUMJOON KIM, BYEONGSOO LIM, DONGHYUN KI
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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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Experimental characterisation and modelling of the creep properties of a P92 steel weldment
Materials at High Temperatures, 2010AbstractIn order to study the rupture phenomena of welded structures made of P92 steel, a weldment was obtained in a P92 seamless pipe portion. Cylindrical smooth and notched cross-weld specimens (CWS) were cut from the weld and submitted to tensile and creep uniaxial tests at 575°C. The results of these tests are presented and discussed.
C. Petry, GARIBOLDI, ELISABETTA
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Materials Characterization, 2020
Abstract The microstructural factors that contribute to hardening mechanisms were investigated to explain the effect of post-weld heat treatment (PWHT) on the hardness of P92 steel in IN740H/P92 dissimilar weld joints. This study presents experimental analysis of the distribution of microstructural factors such as precipitate size, precipitate ...
Wi-Geol Seo +5 more
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Abstract The microstructural factors that contribute to hardening mechanisms were investigated to explain the effect of post-weld heat treatment (PWHT) on the hardness of P92 steel in IN740H/P92 dissimilar weld joints. This study presents experimental analysis of the distribution of microstructural factors such as precipitate size, precipitate ...
Wi-Geol Seo +5 more
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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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Analysis of the Creep Behavior of P92 Steel Welded Joint
Journal of Materials Engineering and Performance, 2011Different regions of heat-affected zone (HAZ) were simulated by heat treatment to investigate the mechanisms of the Type IV fracture of P92 (9Cr-2W) steel weldments. Creep deformation of simulated HAZ specimens with uniform microstructures was investigated and compared with those of the base metal (BM) and the weld metal (WM) specimens.
Junchao An +4 more
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Steam oxidation of scratched β‐FeAl coatings on P92 steel
Materials and Corrosion, 2022AbstractAluminizing is a low‐cost and effective technology to improve the oxidation resistance of P92 steel without impacting its mechanical properties. In that regard, it is worth investigating whether a defective coating has an effect on oxidation.
Yongli Zhou +6 more
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Creep damage evaluation of P92 steel using nonlinear Lamb waves
2017 IEEE International Ultrasonics Symposium (IUS), 2017P92 martensitic ferritic steels are an attractive material for critical components in power industries due to the excellent creep property. However, these steels are usually susceptible to creep strength degradation during a long service period under the elevated temperature and pressure.
Wujun Zhu +5 more
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