Cleavage fracture toughness for 3Cr–Ni–Mo–V reactor pressure vessel steel: theoretical prediction and experimental investigation

Марголин, Б. З.; Shvetsova, V. A.; Gulenko, A. G.; Ilyin, A. V.

doi:10.1016/s0308-0161(01)00057-6

Cited by 7 publications

(9 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The functions m T ( T ) and m ɛ (æ) that were defined in 12 may be calculated as 14,16 where it is taken that S 0 = S C (æ= 0), m 0 is a constant which may be experimentally determined and σ Ys is the temperature‐dependent component of the yield stress.…”

Section: A New Local Criterion Of Cleavage Fracturementioning

confidence: 99%

“…Applications of the Prometey model are sufficiently completely represented in international literature 5,14–18 . Therefore there is no need to consider these results in detail here.…”

Section: Application Of the Brittle Fracture Criterion For The Kjc(t mentioning

confidence: 99%

“…Another model for fracture toughness prediction based on a new local cleavage fracture criterion 10–12 was proposed in both a deterministic 10,13 and a probabilistic 14–17 manner. The probabilistic model (known now as Prometey model) was verified by application to various RPV steels in the initial (as‐produced), irradiated and highly embrittled conditions 14–18 …”

Section: Introductionmentioning

confidence: 99%

“…It should be noted that the model in 14–16 does not include any assumptions concerning the shape of the K JC ( T ) curve and the temperature shift condition but provides a prediction of the K JC ( T ) curve allowing for the possibility of both a shift and a variation of shape.…”

Section: Introductionmentioning

confidence: 99%

“…The probabilistic model (known now as Prometey model) was verified by application to various RPV steels in the initial (as-produced), irradiated and highly embrittled conditions. [14][15][16][17][18] It should be noted that the model in [14][15][16] does not include any assumptions concerning the shape of the K JC (T) curve and the temperature shift condition but provides a prediction of the K JC (T) curve allowing for the possibility of both a shift and a variation of shape. The present paper reviews the model and its application for prediction of fracture toughness for RPV steels, with emphasis on local cleavage fracture criterion.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Application of a new cleavage fracture criterion for fracture toughness prediction for RPV steels

Марголин

Shvetsova

Gulenko

et al. 2006

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

A B S T R A C T In the present paper, approaches for prediction of cleavage fracture proposed by authors over recent years are briefly reviewed. A new local criterion of cleavage fracture and its application are considered. Local criterion of cleavage fracture formulated in a probabilistic manner consists of cleavage microcrack nucleation condition and condition for their start and propagation through various barriers such as microstresses, grain and dislocation substructure boundaries. As distinct from universally accepted criterion in which microcrack nucleation occurs on the plastic deformation beginning (σ eq = σ Y ), cleavage microcrack nucleation according to the formulated condition depends on the maximum principal stress, plastic strain and temperature.On the basis of the proposed criterion, a probabilistic model for fracture toughness prediction (known now as Prometey model) was developed and verified by application to reactor pressure vessels (RPV) materials in the initial, moderately irradiated and highly embrittled states. The Prometey model and other applications of the proposed criterion are briefly considered. The predicted results are compared with test results and the Master Curve.Intensive development of local approach models over the past 30 years was stimulated, to a great extent, by the needs of assessing the structural integrity of reactor pressure vessels (RPV). A key input to calculation of the structural integrity of the RPV is known to be the fracture toughness of a material. It is important to determine how fracture toughness varies as a function of temperature, and how the fracture toughness versus temperature response changes with in-service material degradation due to irradiation.The neutron irradiation damage effect on RPV materials is estimated using data which are obtained from surveillance programs. These surveillance programs include irradiation and testing of small-sized specimens only. On the other hand, as it is well known, adequate determination of fracture toughness over wide temperature range requires full-sized specimen testing. Thus, the major problem arises how to predict the fracture toughness versus temperature curve, K IC (T) or K JC (T), for an irradiated steel on the basis of small-sized specimen testing.The application of a local approach for fracture toughness prediction in irradiated RPV materials appears to be the most promising way to solve this problem. This explains the reason why local approach models are now intensively developed.Currently, there are several brittle fracture models under development. These include the RKR model 1,2 and the Beremin model. 3 However, it was shown in 4,5 that fracture toughness prediction for irradiated RPV steels on the basis of the RKR and Beremin models is not correct. According to these models, the temperature dependence of fracture toughness K JC (T) is mainly determined by the temperature dependence of the yield stress σ Y (T). For RPV steels over the service temperature range 20 • C ≤ T ≤ 300 • C, the yield stress vari...

show abstract

Section: A New Local Criterion Of Cleavage Fracturementioning

confidence: 99%

“…Applications of the Prometey model are sufficiently completely represented in international literature 5,14–18 . Therefore there is no need to consider these results in detail here.…”

Section: Application Of the Brittle Fracture Criterion For The Kjc(t mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Application of a new cleavage fracture criterion for fracture toughness prediction for RPV steels

Марголин

Shvetsova

Gulenko

et al. 2006

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

On Issue of Comparison of the Unified Curve and Master Curve Methods and Application for RPV Structural Integrity Assessment

et al. 2016

View full text Add to dashboard Cite

Ïðîàíàëèçèðîâàíû äâà èíaeåíåðíûõ ìåòîäà -Master Curve è Unified Curve ïðèìåíèòåëüíî ê îöåíêå ñîïðîòèâëåíèÿ õðóïêîìó ðàçðóøåíèþ êîðïóñîâ ðåàêòîðîâ. Äëÿ ñðàâíåíèÿ ýòèõ ìåòîäîâ ïðè îáðàáîòêå áàçû äàííûõ ïî âÿçêîñòè ðàçðóøåíèÿ äëÿ 44 ñòàëåé è èõ øâîâ ñ ðàçëè÷íîé ñòåïåíüþ îõðóï÷èâàíèÿ áûëî èñïîëüçîâàíî òðè ðàçíûõ ñòàòèñòè÷åñêèõ ïàðàìåòðà. Óñòàíîâëåíî, ÷òî ìåòîä Unified Curve èìååò ïðåèìóùåñòâà ïåðåä ìåòîäîì Master Curve. Ïðîàíàëèçèðîâàíû âîçìîaeíûå ïðè÷èíû êàaeóùåãîñÿ ïðåèìóùåñòâà ìåòîäà Master Curve, à òàêaeå ñôîðìóëèðîâàíû è îáîñíîâàíû òðåáîâàíèÿ äëÿ îáúåêòèâíîãî ñðàâíåíèÿ ìåòîäîâ. Îáîáùåíèå ýêñïåðèìåíòàëüíûõ äàííûõ ïî òåìïåðàòóðíîé çàâèñèìîñòè òåðìîàêòèâèðîâàííîé ÷àñòè ïðåäåëà òåêó÷åñòè è ìîäåëè Prometey (ìîäåëè õðóïêîãî ðàçðóøåíèÿ, îñíîâàííîé íà ëîêàëüíîì ïîäõîäå) ïîçâîëèëî îáúÿñíèòü, ïî÷åìó çàâèñèìîñòü K T JC ( ) äëÿ ðàçëè÷íûõ ñòàëåé, ïðè íåáîëüøîé ñòåïåíè îõðóï÷èâàíèÿ, ìîaeåò áûòü àïïðîêñèìèðîâàíà ýêñïîíåíöèàëüíîé ôóíêöèåé, â ÷àñòíîñòè çàâèñèìîñòüþ Master Curve. Ïîëó÷åíà êîððåëÿöèÿ ìåaeäó òåìïåðàòóðíîé çàâèñèìîñòüþ òåðìîàêòèâèðîâàííîé ÷àñòè ïðåäåëà òåêó÷åñòè è çàâèñèìîñòüþ Master Curve.

show abstract

On the link of the embrittlement mechanisms and microcrack nucleation and propagation properties for RPV steels. Part I. Materials, study strategy and deformation properties

Марголин

Fomenko

Shvetsova

et al. 2022

Engineering Fracture Mechanics

View full text Add to dashboard Cite

Cleavage fracture toughness for 3Cr–Ni–Mo–V reactor pressure vessel steel: theoretical prediction and experimental investigation

Cited by 7 publications

References 12 publications

Application of a new cleavage fracture criterion for fracture toughness prediction for RPV steels

Application of a new cleavage fracture criterion for fracture toughness prediction for RPV steels

On Issue of Comparison of the Unified Curve and Master Curve Methods and Application for RPV Structural Integrity Assessment

On the link of the embrittlement mechanisms and microcrack nucleation and propagation properties for RPV steels. Part I. Materials, study strategy and deformation properties

Contact Info

Product

Resources

About