Results 181 to 190 of about 3,361 (228)
Some of the next articles are maybe not open access.
Creep rupture behaviour of P92 steel weldment
Engineering Failure Analysis, 2011Abstract This paper describes the creep rupture behaviour, hardness distribution and microstructure of weldment made by submerge arc welding for W strengthened P92 steel. The cross-weld creep tests were carried out at 923 K and at stress ranging from 100 to 130 MPa. For stress below 120 MPa, weld-joints ruptured by the type IV crack, which located in
Wang Xue +4 more
openaire +1 more source
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
openaire +1 more source
Precipitate Phases in Normalized Ferritic/Martensitic Steel P92
Key Engineering Materials, 2018Precipitate phases in the P92 F/M steel after normalization at 1323 K (1050 °C) for 30 min followed by air cooling to room temperature have been investigated by transmission electron microscopy (TEM). Three types of phases consisting of M3C, MX and M2C have been identified.
Zhi Qiang Xu +3 more
openaire +1 more source
Microstructural Evolution of P92 Steel during Creep
Advances in Materials Technology for Power Plants, 2010Abstract In this paper, the microstructural evolution of P92 steel were studied in the viewpoint of degradation mechanism based on the creep rupture experiment results obtained at elevated temperature by means of macroscopic, metallographic, electronic microscope, energy spectrum, XRD and TEM examination.
Qinxin Zhao +3 more
openaire +1 more source
Characteristics of Residual Stress in P92 Steel Welds
Advanced Materials Research, 2007Welding residual stress has important influence on the performance of engineering components. In this paper, the residual stress and FWHM were measured by X-ray diffraction method to investigate characteristics for P92 steel welds. The aim of the study is to estimate the residual stress and FWHM distribution characteristics.
Keun Bong Yoo +3 more
openaire +1 more source
Failure Analysis of Weld Crack of P92 Steel
Key Engineering Materials, 2017In order to find out the causes of weld cracks in the main steam pipe welded joint of a power plant, a series of relevant tests are specially formulated, which include room temperature tensile and high temperature tensile test, room temperature impact test, the crack tip metallographic observation, crack fracture scanning electron microscope ...
Shao Hua Yin +5 more
openaire +1 more source
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
openaire +1 more source
Aging Mechanism of Welded Joints of P92 Steels
Volume 3: Design, Materials and Manufacturing, Parts A, B, and C, 2012This paper concerns the study of aging mechanism of welded joints of P92 steels. Alloys like P92 steel are commonly used in ultra-supercritical (USC) power plants. Depending on the service conditions, the welded joints may become a critical weak link between component connections, showing crack openings and even failures.
Changzheng Huang +3 more
openaire +1 more source
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
openaire +1 more source
Microstructure and creep behaviour of P92 steel after HPT
Materials Science and Engineering: A, 2018Abstract The influence of the application of severe plastic deformation on microstructure changes and creep deformation behaviour was investigated in P92 creep-resistant pipe steel. P92 steel in its as-received state, with a microstructure typical of tempered martensite, was subjected to high-pressure torsion at room temperature.
Petr Kral +7 more
openaire +1 more source