Results 11 to 20 of about 350,048 (296)

An Investigation of Creep Resistance in Grade 91 Steel through Computational Thermodynamics

open access: yesEngineering, 2020
This study was conducted to understand the relationship between various critical temperatures and the stability of the secondary phases inside the heat-affected-zone (HAZ) of welded Grade 91 (Gr.91) steel parts.
Andrew Smith   +4 more
doaj   +2 more sources

Effect of Heat Treatment on Microstructure and Hardness of Grade 91 Steel

open access: yesMetals, 2015
Grade 91 steel (modified 9Cr-1Mo steel) is considered a prospective material for the Next Generation Nuclear Power Plant for application in reactor pressure vessels at temperatures of up to 650 °C.
Triratna Shrestha   +4 more
doaj   +2 more sources

Creep-Fatigue Life Evaluation for Grade 91 Steels with Various Origins and Service Histories

open access: yesMetals
Grade 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

Effects of the Tempering and High-Pressure Torsion Temperatures on Microstructure of Ferritic/Martensitic Steel Grade 91. [PDF]

open access: yesMaterials (Basel), 2018
Grade 91 (9Cr-1Mo) steel was subjected to various heat treatments and then to high-pressure torsion (HPT) at different temperatures. Its microstructure was studied using transmission electron microscopy (TEM) and X-ray diffraction (XRD).
Ganeev A   +5 more
europepmc   +2 more sources

On the Reliability Assessment of Creep Life for Grade 91 Steel

open access: yesProcedia 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

Modelling of necking during creep of grade 91 steel

open access: yes, 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

Circulating Tumor Cell Detection by Liquid Biopsy during Early-Stage Endometrial Cancer Surgery: A Pilot Study

open access: yesBiomolecules, 2023
The recurrence of non-metastatic endometrial carcinoma (EC) (6 to 21%) might be due to disseminated tumor cells. This feasibility study investigated whether circulating tumor cells (CTCs) were detectable in blood samples from the peripheral and ovarian ...
Sarah Francini   +8 more
doaj   +1 more source

Safety of house dust mite subcutaneous immunotherapy in preschool children with respiratory allergic diseases

open access: yesItalian Journal of Pediatrics, 2021
Background Allergen immunotherapy (AIT) is the only causal therapy for IgE-mediated allergy. There is less evidence about the safety and efficacy of AIT especially subcutaneous immunotherapy (SCIT) in children under 5 years old.
Yaqi Yang   +8 more
doaj   +1 more source

Mechanical performance and microstructure of the grade 91 stainless steel produced via Directed Energy deposition laser technique

open access: yesMaterials & 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   +7 more
doaj   +1 more source

Potential implications of step loading in impression creep testing

open access: yesUbiquity 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
doaj   +1 more source

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