A review of the effect of prior inelastic deformation on high temperature mechanical response of engineering alloys

Li, Dongfeng; O’Dowd, Noel P.; Davies, Catrin M.; Nikbin, Kamran

doi:10.1016/j.ijpvp.2010.07.010

Cited by 26 publications

(33 citation statements)

References 39 publications

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“…As noted in [1,2], crack growth during creep deformation is influenced by the prior inelastic deformation. In ductile metals, the accumulated equivalent plastic strain is thought to be strongly correlated with damage initiation and development [50][51][52].…”

Section: Damage Initiation and Developmentmentioning

confidence: 92%

“…Thirdly, the prestrain may introduce micro-cracks or defects in polycrystals leading to damage, particularly at grain boundaries [49]. This prior damage can consequently affect the subsequent response by reducing the ductility [2]. Accurate physically based microplasticity models can provide insight into these effects and explictly account for each of these three mechanisms, which is not possible with classical, phenomenological plasticity models.…”

Section: Perspectives On Prior Deformation Effectsmentioning

confidence: 99%

“…An understanding of the effect of strain history on the material response is relevant to safety and structural integrity assessment of these materials [1,2], particularly in modern, flexible plant, which are subjected to multiple cycles. The development of a rigorous and accurate approach to lifetime prediction is therefore needed, taking into account recent significant advances in multi-scale experimental and computational techniques.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, local residual stress arising from prior deformation may affect the subsequent deformation [2]. In-situ ND measurements have been applied to materials severely deformed by rolling and extrusion [5,31] in conjunction with self-consistent predictions.…”

Section: Introductionmentioning

confidence: 99%

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The effect of prior deformation on subsequent microplasticity and damage evolution in an austenitic stainless steel at elevated temperature

Li¹,

Davies²,

Zhang³

et al. 2013

Acta Materialia

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The micromechanical deformation of an austenitic stainless steel under uniaxial tension at elevated temperature (550 • C) following room temperature compression has been examined in this work. The study combines micromechanical finite element modelling and in-situ neutron diffraction measurements. Overall, good agreement has been achieved between the measured and simulated stress versus lattice strain response, when prestrain is accounted for. The results indicate that the introduction of prestrain can significantly influence subsequent microscale deformation and damage development associated with microplasticity and that an appropriate representation of strain history can improve the predictive accuracy at the microscale for a polycrystalline material.

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Section: Damage Initiation and Developmentmentioning

confidence: 92%

Section: Perspectives On Prior Deformation Effectsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The effect of prior deformation on subsequent microplasticity and damage evolution in an austenitic stainless steel at elevated temperature

Li¹,

Davies²,

Zhang³

et al. 2013

Acta Materialia

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“…Since el is very small with respect to el,yield , it can be neglected, and the load can be calculated as in equation (29).…”

Section: Elastic Recovery Upon Unloadingmentioning

confidence: 99%

Experimental and Numerical Analysis of Initial Plasticity in P91 Steel Small Punch Creep Samples

et al. 2017

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To date, the complex behaviour of small punch creep test (SPCT) specimens has not been completely understood, making the test hard to numerically model and the data difficult to interpret. This paper presents a novel numerical model able to generate results that match the experimental findings. For the first time, pre-strained uniaxial creep test data of a P91 steel at 600 • C have been implemented in a conveniently modified Liu and Murakami creep damage model in order to simulate the effects of the initial localised plasticity on the subsequent creep response of a small punch creep test specimen. Finite element (FE) results, in terms of creep displacement rate and time to failure, obtained by the modified Liu and Murakami model are in good agreement with experimental small punch creep test data. The rupture times obtained by the FE calculations which make use of the non-modified creep damage model are one order of magnitude shorter than those obtained by using the modified constitutive model. Although further investigation is needed, this novel approach has confirmed that the effects of initial localised plasticity, taking place in the early stages of small punch creep test, cannot be neglected. The new results, obtained by using the modified constitutive model, show a significant improvement with respect to those obtained by a 'state of the art' creep damage constitutive model (the Liu and Murakami constitutive model) both in terms of minimum load-line displacement rate and time to rupture. The new modelling method will

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Effect of Prestrain and Tempering on the Residual Stress of Low‐Carbon Microalloyed Steel

Ding

Liu

Xie

et al. 2019

steel research int.

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In this article a method that combines prestrain with tempering (PST) is used to study the effect of a thermomechanical treatment on the residual stress of high-strength steel and its underlying controlling mechanisms. The study results show that prestrain changes the material's dislocation distribution and carbide precipitation pattern and lowers the temperature controlling the residual stress. Compared with direct tempering (DT), 10% PST causes the temperature controlling the surface residual stress to decrease from 300 to 100 C, reducing the surface residual stress by 76.2%. The temperature controlling the elastic strain energy decreases from 600 to 450 C, and the elastic strain energy decreases by 75.2%. PST's action in controlling the residual stress involves two mechanisms. From room temperature to 300 C, the residual stress is controlled by the precipitation plasticity generated by cementite precipitation, and the effect is mainly focused on controlling the surface residual stress. For temperatures of 300 C and higher, the residual stress is controlled by precipitation-induced creep caused by carbide precipitation, and the effect is mainly focused on decreasing the elastic strain energy.

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A review of the effect of prior inelastic deformation on high temperature mechanical response of engineering alloys

Cited by 26 publications

References 39 publications

The effect of prior deformation on subsequent microplasticity and damage evolution in an austenitic stainless steel at elevated temperature

The effect of prior deformation on subsequent microplasticity and damage evolution in an austenitic stainless steel at elevated temperature

Experimental and Numerical Analysis of Initial Plasticity in P91 Steel Small Punch Creep Samples

Effect of Prestrain and Tempering on the Residual Stress of Low‐Carbon Microalloyed Steel

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