Results of MPC/JSPS Cooperative Testing Program in the Brittle-to-Ductile Transition Region

2009 ◽  
pp. 308-308-17
Author(s):  
WA Van Der Sluys ◽  
MT Miglin
Keyword(s):  
Transition Region ◽  
Testing Program ◽  
Brittle To Ductile Transition ◽  
Cooperative Testing

scholarly journals Investigation of Fracture Process of S355JR Steel in Transition Region Using Metallographic and Fractographic Tests and Numerical Analysis

2018 ◽  
Vol 12 (2) ◽  
pp. 145-150 ◽  
Author(s):  
Ihor Dzioba ◽  
Sebastian Lipiec ◽  
Piotr Furmanczyk ◽  
Robert Pala
Keyword(s):  
Transition Region ◽  
Fracture Process ◽  
Test Results ◽  
Transition Range ◽  
Plastic Properties ◽  
Brittle To Ductile Transition ◽  
Edge Notch ◽  
Fractographic Examination ◽  
Electronic Microscope ◽  
Senb Specimen

Abstract In the paper are presented test results of fracture process in brittle-to-ductile transition range for two microstructural types of S355JR steel – ferrite-pearlite and ferrite-carbides. For both kinds of S355JR steel obtained in temperature range of transition region the strength and plastic properties are similar, but the fracture toughness characteristics showed significantly are various. To clarify the differences in the course of trends in the mechanical characteristics performed metallographic and fractographic observations using the scanning electronic microscope. The fractographic examination showed that changes in the fracture surface morphology were dependent on the test temperature. It was also found that during the subcritical crack growth the region of ductile fracture extension reduced with decreasing temperature. The results of finite element method (FEM) calculation the stress fields in front of the crack of single edge notch in bending (SENB) specimens in the range of brittle-to-ductile transition are presented also. The FEM calculations were performed on the numerical model of SENB specimen using the ABAQUS program.

Flamanville EPR RPV’s Heads Carbon Segregation: Tests Program Definition to Characterize the Mechanical Properties of the Carbon Segregation

2018 ◽  
Author(s):  
Stéphane Marie ◽  
Jérôme Demarecaux ◽  
Philippe Fichot ◽  
Elisabeth Keim ◽  
Johannes May ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Content ◽  
Mechanical Tests ◽  
Main Issue ◽  
Residual Carbon ◽  
Testing Program ◽  
Carbon Segregation ◽  
Brittle To Ductile Transition ◽  
Drop Weight ◽  
The Impact

To characterize the mechanical properties of the residual carbon segregation of the Flamanville EPR RPV heads, a testing program have been organized by Framatome and performed in 3 laboratories (Wood, Framatome technical center of Erlangen and SCK Mol). This paper presents the tests program, how it has been defined and its goals. The main issue was the impact of the carbon content on the toughness properties. A procedure was defined to characterize specifically the toughness distribution in the upper part of the brittle-to-ductile transition. The ductile regime was also investigated. These tests were completed with tensile, Charpy and drop weight tests, representing a final total of approximatively 1700 mechanical tests.

Cooperative Testing Program

1949 ◽  
Vol 17 (6) ◽  
pp. 355-356 ◽  
Author(s):  
C. N. Wall
Keyword(s):  
Testing Program ◽  
Cooperative Testing
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