Creep behavior of Al-Si-Mg alloy by hot impression creep test

Kumar, Sudarshan; Ramteke, S.; Chelika, Shailaja; Vanitha, C.

doi:10.1016/j.matpr.2020.10.348

Cited by 6 publications

(3 citation statements)

References 16 publications

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“…16 Such data can also be used to generate constitutive laws for the welded material. 17,18 The main small-sized specimen and testing types that are used to obtain high-temperature creep properties including the conventional sub-sized uniaxial specimens 19 and several miniaturized types, including impression creep test, [20][21][22] small punch tensile, creep and fracture tests, [23][24][25][26][27] small ring creep test, [28][29][30] small tensile two-bar creep test 31 and the more recent miniature thin-plate (MTP) tensile test. 32 One of the unique advantages that small punch creep test has is the very small thickness ($0.5 mm); however, there is no universally accepted conversion technique available for data interpretation.…”

Section: Introductionmentioning

confidence: 99%

A miniaturized thin‐plate low cycle fatigue test method at elevated temperature

Maskill

Zhou

et al. 2022

Fatigue Fract Eng Mat Struct

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This study aims to develop a high-temperature low cycle fatigue test method using a nonstandard miniature thin-plate specimen in order to characterize the cyclic viscoplasticity behavior of a component material. For demonstration, fully reversed strain-range controlled low cycle fatigue and creep-fatigue tests at 600 C have been performed for a martensitic steel using standard-sized fullscale specimens and miniaturized thin-plate specimens, respectively. Because the displacement is not directly measured from the uniform gauge section of the miniaturized specimen, a geometry-dependent scaling factor is obtained and used to convert the uniaxial strain. The results obtained are shown that the miniaturized test method developed in this work has exhibited a clear possibility to produce comparable low cycle fatigue data with those that are normally obtained by conventional standard specimen tests.

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Section: Introductionmentioning

confidence: 99%

A miniaturized thin‐plate low cycle fatigue test method at elevated temperature

Maskill

Zhou

et al. 2022

Fatigue Fract Eng Mat Struct

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show abstract

“…It is well-established that in order to study the plastic behavior of the samples, the investigation can be focused on the strain rate sensitivity because this parameter correlates unambiguously to the ductility [16][17][18]. Furthermore, the characteristics of plastic deformation, particularly for superplastic materials, can be determined by other alternative methods, for example, by impression creep test [19][20][21][22][23][24][25][26][27][28][29][30][31], which method was first suggested and developed by Chu and Li [19]. For this test, a small amount of testing material can be used, and the machining of the samples is simple.…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

Low temperature super ductility and threshold stress of an ultrafine-grained Al–Zn–Mg–Zr alloy processed by equal-channel angular pressing

et al. 2021

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Low temperature tensile and impression creep tests were carried out on an ultrafine-grained 7xxx series Al–4.8Zn–1.2 Mg–0.14Zr (wt%) alloy, which can be deformed for maximum elongation of about 200% at 150 °C. The characteristics of the deformation process, such as the strain rate sensitivity (SRS) and activation energy (Q) were determined by considering also the effect of threshold stress. Relatively high SRS of $$\sim$$ ∼ 0.35 and low activation energy of $$\sim$$ ∼ 92 kJ/mole were obtained, confirming the super ductility of the investigated ultrafine-grained alloy in the low temperature region between 140 and 160 °C. Graphical abstract

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“…Such data can also be used to generate creep consti-tutive laws for welded materials 14,16,17 . The main small specimen and testing types that are used to obtain high temperature tensile and creep properties include the conventional sub-sized uniaxial specimens 18 and several specialized miniature specimen test types including: the impression creep test [19][20][21] , the small punch tensile, creep and fracture tests [22][23][24][25][26] , the small ring creep test [27][28][29] , the small tensile two bar creep test 30 , and the more recent miniature thin-plate tensile test 12,13,31 . One of the unique advantages that small punch creep test has is the very small thickness (~0.5 mm), however, there is no universally accepted conversion techniques available for data interpretation 32,33 .…”

Section: Introductionmentioning

confidence: 99%

A Miniaturized Thin-Plate Low Cycle Fatigue Test Method at Elevated Temperature

Maskill

Z.X.

et al. 2021

Preprint

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This study aims to develop a high temperature LCF test method using a non-standard miniature thin-plate (MTP) specimen in order to characterize cyclic visco-plasticity behavior of component materials. For demonstration, fully reversed strain-range controlled LCF and creep-fatigue (CF) tests at 600 °C have been performed for a martensitic steel using both standard-sized full-scale (SSFS) and MTP specimens. A scaling factor is determined using cyclic visco-plastic finite element (FE) for geometry constraint evaluation and data conversion based on the reference strain approach. The equivalent energy principal is proposed to assess the geometry constraint effect that non-standard MTP specimen has. The high temperature LCF results from the MTP specimen based on the proposed testing methodology have shown a good agreement with SSFS specimen data under equivalent conditions. The methodology can therefore be used to conduct accurate transferability to achieve equivalent LCF behavior between the conventional standard specimen and the MTP specimen.

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Creep behavior of Al-Si-Mg alloy by hot impression creep test

Cited by 6 publications

References 16 publications

A miniaturized thin‐plate low cycle fatigue test method at elevated temperature

A miniaturized thin‐plate low cycle fatigue test method at elevated temperature

Low temperature super ductility and threshold stress of an ultrafine-grained Al–Zn–Mg–Zr alloy processed by equal-channel angular pressing

A Miniaturized Thin-Plate Low Cycle Fatigue Test Method at Elevated Temperature

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