Results 21 to 30 of about 11,261 (277)

Evaluation equation for creep rupture life of Gr. 91 steel considering region classification and difference in creep strength between heats

Nihon Kikai Gakkai ronbunshu, 2022
A creep rupture life evaluation equation for Gr. 91 steel was proposed, taking account of the region classification and the creep strength difference between heats. The creep rupture life evaluation equation consists of three parts.
Kenichi KIZU
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Mechanical performance and microstructure of the grade 91 stainless steel produced via Directed Energy deposition laser technique

Materials & Design, 2023
The grade 91 ferritic/martensitic steel is considered a promising structural or cladding material for various nuclear reactor applications. Here, grade 91 was fabricated via the Directed Energy Deposition Laser technique.
S. Samuha, J. Bickel, T. Mukherjee, T. DebRoy, T.J. Lienert, S.A. Maloy, C.R. Lear, P. Hosemann   +7 more
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Impact of Thermomechanical Fatigue on Microstructure Evolution of a Ferritic-Martensitic 9 Cr and a Ferritic, Stainless 22 Cr Steel

Applied Sciences, 2020
The highly flexible operation schemes of future thermal energy conversion systems (concentrating solar power, heat storage and backup plants, power-2-X technologies) necessitate increased damage tolerance and durability of the applied structural ...
Bernd Kuhn, Jennifer Lopez Barrilao, Torsten Fischer   +2 more
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Mechanical testing data from neutron irradiations of PM-HIP and conventionally manufactured nuclear structural alloys

Data in Brief, 2023
This article presents the comprehensive mechanical testing data archive from a neutron irradiation campaign of nuclear structural alloys fabricated by powder metallurgy with hot isostatic pressing (PM-HIP).
Janelle P. Wharry, Caleb D. Clement, Yangyang Zhao, Katelyn Baird, David Frazer, Jatuporn Burns, Yu Lu, Yaqiao Wu, Collin Knight, Donna P. Guillen, David W. Gandy   +10 more
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Remaining lifetime assessment of 141,000-hour service-aged forge 91-pipe 91 steel header welds with novel in-situ digital image correlation

Materials & Design, 2022
Condition assessment of welded steam components is a crucial activity for safe power plant operations. In this work, remaining lifetime of a 141,000-hour service-aged large bore girth weld between an SA-182 forged 91 (F91) reducer and an SA-335 pipe 91 ...
Yiyu Wang, Wei Zhang, Yanli Wang, John Siefert, Alex Bridges, Steven Kung, Zhili Feng   +6 more
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Potential implications of step loading in impression creep testing

Ubiquity Proceedings, 2018
The small sample impression creep test method has recently been of interest, as it can give a good indication of expected creep rates in uniaxial creep testing with minimal use of material.
A. Bridges, D. Purdy
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A mechanistic study of retained δ-ferrite in additively-manufactured Grade 91 steel

Journal of Materials Research and Technology
A combined experimental, characterization, and simulation study has been conducted to develop a quantitative description for microstructural evolution during Laser-Directed Energy Deposition (L-DED) of Grade 91 steel.
Zhe Lyu, William Hoffmann, Waris Khan, Thomas Lienert, Leijun Li   +4 more
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Influence of Hold Time and Stress Ratio on Cyclic Creep Properties Under Controlled Tension Loading Cycles of Grade 91 Steel

Nuclear Engineering and Technology, 2017
Influences of hold time and stress ratio on cyclic creep properties of Grade 91 steel were systemically investigated using a wide range of cyclic creep tests, which were performed with hold times (HTs) of 1 minute, 3 minutes, 5 minutes, 10 minutes, 20 ...
Woo-Gon Kim, Jae-Young Park, I Made Wicaksana Ekaputra, Seon-Jin Kim, Jinsung Jang   +4 more
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The Interpretation of Experimental Observation Data for the Development of Mechanisms based Creep Damage Constitutive Equations for High Chromium Steel

, 2015
It is very important to design a safe factor or estimating the remain lifetime for electric power plant components of steam pipes which mostly manufacture by high chromium steels and work at high temperature and low stress level.
Yang, Xin, Xu, Qiang, Xin Yang, Zhongyu Lu, Qiang Xu, Lu, Zhongyu   +5 more
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Investigating the fracture and deformation behaviour of pre-strained Grade 91 steel under small punch loading

Fracture and Structural Integrity
Various failure modes induce localized internal damage and stress concentration sites in power plant components, causing additional plasticity that degrades material strength.
Sarthok Chandra Pandit, Nasrul Azuan Alang, Juliawati Binti Alias, Mohd Firdaus Bin Hassan, Asnul Hadi Bin Ahmad, Mohd Shamil Shaari, Zhao Lei   +6 more
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