Paper 30: Strain-Time, Rate-Stress and Rate-Temperature Relations during Large Deformations in Creep

Garofalo, F.; Richmond, O.; Domis, W. F.; Gemmingen, F. von

doi:10.1243/pime_conf_1963_178_010_02

Cited by 29 publications

(23 citation statements)

References 4 publications

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“…The experimental data showed the applicability of strain hardening rule and Von Mises' flow rule to Hastelloy XR. The statistical analyses revealed that the time function proposed by Garofalo et al (1963) correlates the creep curve data in the superior agreement to the rational time function (Booker et al, 1977). Fig.…”

Section: Creep Bucklingmentioning

confidence: 75%

Structural design of high temperature metallic components

Tachibana¹,

Iyoku²

2004

Nuclear Engineering and Design

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Section: Creep Bucklingmentioning

confidence: 75%

Structural design of high temperature metallic components

Tachibana¹,

Iyoku²

2004

Nuclear Engineering and Design

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“…t is the creep time in hours. This primary creep deformation expression was also adopted by Garofalo and co-workers [21]. Consequently, the primary creep deformation is described by:…”

Section: Analysis and Resultsmentioning

confidence: 94%

Constitutive equations that describe creep stress relaxation for 316H stainless steel at 550°C

Chen¹,

Smith²,

Flewitt

et al. 2011

Materials at High Temperatures

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The prediction of the stress relaxation behaviour of welding induced residual stresses in thick section 316H austenitic stainless steel welded component provides an input for quantifying reheat crack initiation observed in the heat affected zone. The cracks occur after service at a temperature range from 490 to 520 C. The present work reviews some of the widely applied stress relaxation models. The relative strengths and weaknesses of these existing models are discussed. An improved constitutive equation derived from a forward uniaxial creep deformation law is proposed. The relative importance of the parameters selected in the new constitutive model, when compared with experimental data, is discussed. The importance of a better understanding of the role of the internal stress and its measurement is highlighted.Units for all of these symbols are given in the text. All strains and stresses considered in this paper are engineering strains and engineering stresses, rather than the true strains and true stresses.

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“…The relative brittleness of the 316H steel could be due to its higher grain size (150 lm) because creep ductility is known to decrease when the grain size increases in the range 25-400 lm [38]. It could also result from different intergranular carbide morphology or different intergranular impurity segregation (such as sulphur or boron for example) -two parameters also known to affect creep ductility [39][40][41][42].…”

Section: Stress Intensity Factor (Mpam 1/2 ) Crack Propagation Lengtmentioning

confidence: 99%

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

Auzoux

Allais

Caës

et al. 2010

Journal of Nuclear Materials

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Paper 30: Strain-Time, Rate-Stress and Rate-Temperature Relations during Large Deformations in Creep

Cited by 29 publications

References 4 publications

Structural design of high temperature metallic components

Structural design of high temperature metallic components

Constitutive equations that describe creep stress relaxation for 316H stainless steel at 550°C

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

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