Effect of pre-strain on creep of three AISI 316 austenitic stainless steels in relation to reheat cracking of weld-affected zones

Auzoux, Quentin; Allais, L.; Caës, Christel; Monnet, I.; Gourgues, Anne-Françoise; Pineau, A.

doi:10.1016/j.jnucmat.2010.02.021

Cited by 30 publications

(18 citation statements)

References 31 publications

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“…The process of hot bending steam pipe for example involves substantial deformation, producing wall thinning at the bend extrados and wall thickening at the bend intrados, resulting potentially in a significant variation in creep properties. There have been a few studies in recent years on the effect of pre-straining on stainless steel 316H [2]- [4], where it has been shown to increase creep resistance.…”

Section: Strain Induced In Components During Manufacturementioning

confidence: 99%

An investigation of the effect of pre-straining on the creep behaviour of a P91 steel at 600 °C using impression creep testing

Brett

Dyson

Maskill

et al. 2020

Materials Science and Engineering: A

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This paper investigates the effect of high temperature tensile strain on subsequent creep strength in a grade 91 steel using impression creep testing. The grade 91 material investigated has been tested in two different microstructural conditions, in the normal martensitic condition and in an aberrant mis-heat treated condition in which the microstructure is 100% ferrite. The latter condition is of interest because of its widespread occurrence on operating power plant. The two microstructural conditions were confirmed by hardness mapping and Electron Back Scattered Diffraction (EBSD). Previous investigations have used pre-strained uniaxial creep specimens to investigate this effect, but the present work has utilised the specialised small-scale impression creep testing technique to test material obtained at a number of positions along the axes of failed hot tensile specimens. This allowed impression creep samples to be extracted at various prestrains for investigation and for a wide range of hot tensile pre-strain to be investigated. The two microstructural conditions have shown a divergence in behaviour, with the normal martensitic material showing little change in creep strength with increasing pre-strain and the aberrant material increasing markedly in creep strength with increasing pre-strain.

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Section: Strain Induced In Components During Manufacturementioning

confidence: 99%

An investigation of the effect of pre-straining on the creep behaviour of a P91 steel at 600 °C using impression creep testing

Brett

Dyson

Maskill

et al. 2020

Materials Science and Engineering: A

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“…Plastic deformation is considered as one of the major factors in initiating stress corrosion cracking [2]- [6] and creep failure [7]- [11] of austenitic stainless steels.…”

Section: Introductionmentioning

confidence: 99%

Determination of plasticity following deformation and welding of austenitic stainless steel

Acar

Fitzpatrick

2017

Materials Science and Engineering: A

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“…The influence of plastic pre-strain on the deformation and creep behaviour of 316H stainless steel has been the focus of many studies in recent years (see [1][2][3][4][5]). Understanding the effects of plastic pre-strain on the behaviour of structural components is essential for structural integrity assessments as some degree of plastic strain is introduced into components by most manufacturing processes including forging and welding (see e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Understanding the effects of plastic pre-strain on the behaviour of structural components is essential for structural integrity assessments as some degree of plastic strain is introduced into components by most manufacturing processes including forging and welding (see e.g. [1,2]). …”

Section: Introductionmentioning

confidence: 99%

Effects of plastic pre-straining level on the creep deformation, crack initiation and growth behaviour of 316H stainless steel

Mehmanparast

Davies

Dean

et al. 2016

International Journal of Pressure Vessels and Piping

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The effects of the material pre-straining level, in the form of plastic pre-compression at room temperature, on the tensile, creep deformation, creep crack initiation and growth behaviour of 316H stainless steel have been examined at 550 °C. Experiments have been performed on the 4%, 8% and 12% pre-compressed specimens and the results are compared with existing data on the pre-compressed material to investigate the change in mechanical response, creep failure, creep crack initiation and growth behaviour of 316H over a range of plastic pre-straining levels. Comparisons are also made to short term and long term test data on the as-received material. It has been found that creep ductility and rupture times decreased with an increase in pre-strain levels considered. The test results obtained from different material states are discussed in terms of the influence of material pre-straining level on the microstructural deformation, mechanical response, creep deformation and crack growth behaviour of the material.

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Effect of pre-strain on creep of three AISI 316 austenitic stainless steels in relation to reheat cracking of weld-affected zones

Cited by 30 publications

References 31 publications

An investigation of the effect of pre-straining on the creep behaviour of a P91 steel at 600 °C using impression creep testing

An investigation of the effect of pre-straining on the creep behaviour of a P91 steel at 600 °C using impression creep testing

Determination of plasticity following deformation and welding of austenitic stainless steel

Effects of plastic pre-straining level on the creep deformation, crack initiation and growth behaviour of 316H stainless steel

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