Results 11 to 20 of about 11,261 (277)
Data in Brief, 2016 Raw data from small punch tensile/fracture tests at two displacement rates in the temperature range from −196 °C to room temperature on Grade 91 ferritic/martensitic steel are presented. A number of specimens were analyzed after testing by means of X-ray
Matthias Bruchhausen +3 more
doaj +3 more sources
On the Reliability Assessment of Creep Life for Grade 91 Steel
Procedia Engineering, 2014 AbstractReliability assessment of the long-term creep life of Grade 91 steel has been performed on a large body of creep-rupture data obtained from literature as well as from the in-house creep tests performed at IGCAR and KAERI. A “Service Condition-creep Rupture property Interference” (SCRI) model based on Z-parameter was used to simultaneously ...
Choudhary, B.K. +5 more
openaire +2 more sources
Creep-Fatigue Life Evaluation for Grade 91 Steels with Various Origins and Service Histories
MetalsGrade 91 steel is widely used in the boilers and piping of thermal power plants. There has been significant research interest in understanding the variations in creep characteristics among different heats of this steel for effective plant management.
Haruhisa Shigeyama +3 more
doaj +2 more sources
Journal of Materials Research and TechnologyAdditive manufacturing (AM) rapidly produces complex shapes crucial for energy technologies and engineering designs. In this work, the microstructure and mechanical properties of additive manufactured Grade 91 (modified 9Cr–1Mo) ferritic/martensitic (FM)
Ishtiaque K. Robin +4 more
doaj +2 more sources
Heat Transfer Analysis of Localized Heat-Treatment for Grade 91 Steel
, 2017 Many of the projects utilizing Grade 91 steel are large in scale, therefore it is necessary to assemble on site. The assembly of the major pieces often requires welding in the assembly; welding drastically changes the superior mechanical properties of Grade 91 steel that it was specifically developed for.
Walker, Jacob D.
openaire +4 more sources
Modelling of necking during creep of grade 91 steel
, 2010 This paper addresses a necking model used for predicting creep lifetimes of Grade 91. Creep results from more than 15 tests at 500-600°C on Grade 91 are used. One of them fractured after 160×103h at 500°C. Hart's necking model using the Norton power-law rule correctly predicts lifetimes up to 60×103h at 500°C. However, it overestimates lifetimes in all
Lim, R. +4 more
openaire +2 more sources
Creep and creep crack growth behaviors for base, weld, and heat affected zone in a grade 91 weldment
Nuclear Engineering and Technology, 2021 This study investigated the creep and creep crack growth (CCG) behavior of the base metal (BM), weld metal (WM), and heat affected zone (HAZ) in a Gr. 91 weldment, which was made by a shield metal arc weld process.
Woo-Gon Kim +4 more
doaj +1 more source
Analysis of the difference in creep strength between heats in Gr. 91 steel by data science
Nihon Kikai Gakkai ronbunshu, 2021 Data analysis was conducted to investigate the causes of the difference in creep strength between the heats of Gr. 91 steel. Creep rupture data were divided into multiple regions and fitted with an exponential degradation model.
Kenichi KIZU
doaj +1 more source
The Effect of Micro-Segregation on the Quantification of Microstructural Parameters in Grade 91 Steel [PDF]
Metallurgical and Materials Transactions A, 2020 Abstract The quantification of key microstructural parameters as a function of aging or creep exposure time is commonplace in the assessment of 9Cr Creep Strength Enhanced Ferritic (CSEF) power-plant steels. In these studies, the sample is either assumed chemically homogenous at the micro-scale or that a material average will be achieved by ...
Jabar, Sharhid +3 more
openaire +2 more sources
, 2021 © 2020 Elsevier B.V.Laser powder bed additively manufactured Grade 91 composition steel was investigated in comparison to wrought Grade 91 steel in terms of microstructure and mechanical properties. As-deposited additively manufactured Grade 91 steel had
El Atwani, Osman +10 more
core +1 more source