Evaluation of the effect of metallurgical variables on materials behaviour and reference curves

Törrönen, Kari; Saario, Timo; Wallin, Kim; Forstén, Jarl

doi:10.1016/0308-0161(84)90011-5

Cited by 5 publications

(1 citation statement)

References 10 publications

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“…The theory which explains ductile fracture mechanism in metals as the process of the nucleation, growth and coalescence of microvoids has been widely accepted [14,15]. It is well known that the MnS/matrix interface is the main site for microvoid nucleation in low alloy steel [16].…”

Section: J-r Fracture Resistances and Microstructures Of Sa508-gr3 Smentioning

confidence: 99%

J-R fracture characteristics of ferritic steels for RPVs and RCS piping of nuclear power plants

2001

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J-R fracture resistance tests have been performed on 3 heats of SA508-Gr.3 nuclear reactor pressure vessel (RPV) steel as well as 2 heats of SA516-Gr.70 and a heat of SA508-Gr.1a steels for nuclear reactor coolant system (RCS) piping. For the latter two steels, dynamic in addition to static J-R fracture resistances were investigated. From the test results of the SA508-Gr.3 steels, the J-R fracture resistance was superior in the following order: Si-killing steel, modified VCD steel and VCD steel. Microstructural analyses were carried out to correlate J-R fracture resistances with microstructural characteristics. According to the test results for SA508-Gr.1a and SA516-Gr.70 steels, all of the tested steels showed steep drops in fracture resistance at certain temperature and loading rate combinations. One heat of SA516-Gr.70 steel was very sensitive to dynamic strain aging and its fracture resistance was significantly low. It was concluded that microstructural and chemical factors affect the J-R fracture and DSA characteristics of SA516-Gr.70 steels.

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Section: J-r Fracture Resistances and Microstructures Of Sa508-gr3 Smentioning

confidence: 99%