Results 11 to 20 of about 8,285 (310)

Structural evolutions during creep deformation of polyester industrial fiber via in situ synchrotron small-angle X-ray scattering/wide-angle X-ray scattering

open access: yesJournal of Industrial Textiles, 2022
This paper aims to identify the creep mechanisms of high tenacity (HT) polyester industrial fiber under different loads. In-situ synchrotron small-angle X-ray scattering (SAXS) and wide-angle X-ray scattering (WAXS) tests were conducted on a 1000 D HT ...
Kang Chen   +6 more
doaj   +1 more source

Creep rupture in HP-Nb refractory steel tubes due to short-term overheating

open access: yesEuropean Journal of Materials, 2022
The premature creep rupture of cast reformer tubes made of HP-Nb steel due to short-term overheating, was investigated. Investigation was performed on specimens from ruptured, cracked, and uncracked tubes and included metallography, mechanical testing ...
Gregory N. Haidemenopoulos   +3 more
doaj   +1 more source

Long-term creep properties of Ni-based 21Cr-18Fe-9Mo superalloys

open access: yesScience and Technology of Advanced Materials: Methods, 2023
Tensile properties and creep rupture strength were evaluated for Ni-based 21Cr-18Fe-9Mo superalloy plate and bar products used for gas turbines. Tensile tests at room temperature to 1000°C and creep tests at 700°C to 1000°C were performed in accordance ...
Kota Sawada   +5 more
doaj   +1 more source

Creep Ruptures in Heterogeneous Materials [PDF]

open access: yesPhysical Review Letters, 2005
We present creep experiments on fiber composite materials with controlled heterogeneity. Recorded strain rates and acoustic emission rates exhibit a power law relaxation in the primary creep regime (Andrade law) followed by a power law acceleration up to rupture over up to four decades in time.
Nechad, Hanane   +3 more
openaire   +4 more sources

Influence of thermal ageing on creep rupture mechanism and creep life of P92 ferritic steel

open access: yesMaterials Research Express, 2020
In order to analyze the effect of thermal ageing on creep rupture mechanism and establish a method for predicting the creep rupture life of P92 heat-resistant steel under thermal ageing, creep tests were performed on P92 steel specimens, aged at 650 °C ...
Hui Kang   +7 more
doaj   +1 more source

Application of soft constrained machine learning algorithms for creep rupture prediction of an austenitic heat resistant steel Sanicro 25

open access: yesJournal of Materials Research and Technology, 2023
Creep rupture extrapolation is crucial for high-temperature materials served in power plants. Many analytical models can be used for creep rupture analysis, and fundamental models are also available. Machine learning is also an alternative.
Jun-Jing He   +3 more
doaj   +1 more source

Review of Creep Cavitation and Rupture of Low Cr Alloy and its Weldment [PDF]

open access: yes, 2013
This paper presents a review of creep cavitation and rupture of low Cr alloy and its weldment, particular in the heat-affected zone (HAZ). Creep damage is one of the serious problems for the high temperature industry.
Xu, Qiang   +6 more
core   +1 more source

Design of a new 11Cr martensitic steel and evaluation of its long-term creep rupture strengths

open access: yesJournal of Materials Research and Technology, 2022
A new grade of 11 wt% Cr steel was designed in which no nitrogen was added to minimise the driving force of the Z-phase formation and hence to maximise the stability of the fine MX precipitate particles. But, 6 wt% Co was added to completely suppress the
Z. Dong, L. Chen, Z.D. Xiang
doaj   +1 more source

The method for reproducing fine grained HAZ of W strengthened high Cr steel [PDF]

open access: yes, 2014
The methods for reproducing fine grained heat affected zone of high Cr steel for creep test were investigated. This research was motivated by the need for reproducing uniform FGHAZ to investigate the creep damage process and untangle the coupling between
Wang, Xue Z.   +10 more
core   +1 more source

Deep learning accelerates the development of Ni-based single crystal superalloys: A physical-constrained neural network for creep rupture life prediction

open access: yesMaterials & Design, 2023
Creep rupture life is a key target for designing Ni-based single crystal (SX) superalloys. Machine learning (ML) has the potential to accelerate alloy design by accurately predicting the creep rupture life of potential superalloys.
Fan Yang   +6 more
doaj   +1 more source

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