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Machine learning-based predictions and analyses of the creep rupture life of the Ni-based single crystal superalloy [PDF]

open access: yesScientific Reports
The evaluation of creep rupture life is complex due to its variable formation mechanism. In this paper, machine learning algorithms are applied to explore the creep rupture life span as a function of 27 physical properties to address this issue.
Fan Zou   +3 more
doaj   +2 more sources

Long-term creep rupture strength prediction for a new grade of 9Cr martensitic creep resistant steel (G115)—An application of a new tensile creep rupture model

open access: yesJournal of Materials Research and Technology, 2020
A method is presented to firstly rationalise the short-term creep rupture strength data and then to predict the 100,000 h creep rupture strengths of a new 9Cr grade of martensitic creep resistant steels (G115) at different temperatures.
C.C. Jiang   +4 more
doaj   +3 more sources

Discovering chemistry to creep rupture equations in Alloy 617 with machine learning [PDF]

open access: yesScientific Reports
This study seeks to discover a mathematical relationship between stress, temperature, properties, chemistry, and creep-rupture of a superalloy. This discovery will be achieved by leveraging human-supervised machine learning (ML).
Md Abir Hossain   +3 more
doaj   +2 more sources

The rupture life prediction in cold dwell fatigue of Ti-6Al-4V based on the creep deformation [PDF]

open access: yesMATEC Web of Conferences, 2020
Titanium a lloys have been found that the fatigue strength of Ti alloys decreases due to cold dwell fatigue (CDF) at room temperature. Ti and Ti alloys generate creep deformation at room temperature (T/Tm = 0.15).
Ota Yutaro   +2 more
doaj   +1 more source

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

open access: yesNihon 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
doaj   +1 more source

Effect of Grain Size on Mechanical and Creep Rupture Properties of 253 MA Austenitic Stainless Steel

open access: yesMetals, 2022
The effect of grain size on the mechanical properties and creep rupture of 253 microalloyed (MA) austenitic stainless steel (ASS) was investigated. The cold rolling process with a 53% reduction in thickness was applied to the steel followed by annealing ...
Mochammad Syaiful Anwar   +5 more
doaj   +1 more source

Dramatically enhanced creep rupture performance and failure analysis of 9Cr–CrMoV dissimilar welded joint

open access: yesJournal of Materials Research and Technology, 2022
The relationship between the microstructure evolution and the corresponding creep rupture performance are systematically investigated. Dramatically enhanced creep rupture performance is achieved for the 9Cr–CrMoV dissimilar welded joint by adjusting the ...
Kai Ding   +7 more
doaj   +1 more source

Influence of constitutive model on calculation results of creep deformation response of notched specimen of GH4169 alloy

open access: yesJournal of Aeronautical Materials, 2021
In view of the creep deformation failure of areo-engine high temperature components, the elastoplastic and creep deformation response of GH4169 alloy smooth and notched plate specimens at 650 ℃ is calculated using elastoplastic coupled creep constitutive
HU Xianming   +3 more
doaj   +1 more source

Creep properties and analysis of creep rupture data of 2.25Cr-1Mo-0.3V steels

open access: yesScience and Technology of Advanced Materials: Methods, 2022
Tensile properties and creep rupture data were obtained for four heats of 2.25Cr-1Mo-0.3 V steels used for high-temperature and high-pressure hydrotreatment reactor vessels. Tensile tests at room temperature to 650°C were performed in accordance with JIS
Kota Sawada   +4 more
doaj   +1 more source

Modified θ projection model-based constant-stress creep curve for alloy 690 steam generator tube material

open access: yesNuclear Engineering and Technology, 2022
Steam generator (SG) tubes in a nuclear power plant can undergo rapid changes in pressure and temperature during an accident; thus, an accurate model to predict short-term creep damage is essential.
Seongin Moon   +6 more
doaj   +1 more source

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