TY - GEN
T1 - FRACTURE CHARACTERIZATION OF STRUCTURAL STEEL S275JR USING CONVENTIONAL CT SPECIMENS, MINI-CT SPECIMENS AND SMALL PUNCH SPECIMENS
T2 - ASME 2023 Pressure Vessels and Piping Conference, PVP 2023
AU - Sánchez, Marcos
AU - Cicero, Sergio
AU - Arroyo, Borja
N1 - Publisher Copyright:
Copyright © 2023 by ASME.
PY - 2023
Y1 - 2023
N2 - Miniaturized specimens, such as mini-CT specimens and Small Punch (SP) specimens, are a solid alternative when characterizing the fracture behavior of structural materials but there are restrictions related to the amount of material available, irradiation issues or material inhomogeneities, among other possible concerns. Moreover, in ferritic-pearlitic steels, fracture characterization is of particular interest within the ductile-tobrittle transition zone (DBTZ), and it is often performed through the definition of the Reference Temperature (T0) and the Master Curve (MC) methodology. The use of mini-CT specimens has been validated in a number of steels used in the nuclear industry, but its application in other types of ferritic-pearlitic steels is very limited. In this regard, this work provides an overview of the fracture characterization results (T0) in structural steel S275JR, which have been obtained by using conventional standardized Compact-Tension (CT) specimens, mini-CT specimens and SP specimens. This steel is a low carbon non-alloyed steel which is widely used in civil engineering structures. Here, it is shown how, for this particular structural steel, the use of miniaturized specimens provides T0 estimations which are comparable to those values obtained from conventional larger specimens, and also that the MC approach accurately reflects the fracture behavior in the DBTZ.
AB - Miniaturized specimens, such as mini-CT specimens and Small Punch (SP) specimens, are a solid alternative when characterizing the fracture behavior of structural materials but there are restrictions related to the amount of material available, irradiation issues or material inhomogeneities, among other possible concerns. Moreover, in ferritic-pearlitic steels, fracture characterization is of particular interest within the ductile-tobrittle transition zone (DBTZ), and it is often performed through the definition of the Reference Temperature (T0) and the Master Curve (MC) methodology. The use of mini-CT specimens has been validated in a number of steels used in the nuclear industry, but its application in other types of ferritic-pearlitic steels is very limited. In this regard, this work provides an overview of the fracture characterization results (T0) in structural steel S275JR, which have been obtained by using conventional standardized Compact-Tension (CT) specimens, mini-CT specimens and SP specimens. This steel is a low carbon non-alloyed steel which is widely used in civil engineering structures. Here, it is shown how, for this particular structural steel, the use of miniaturized specimens provides T0 estimations which are comparable to those values obtained from conventional larger specimens, and also that the MC approach accurately reflects the fracture behavior in the DBTZ.
KW - DBTZ
KW - S275JR
KW - fracture
KW - mini-CT
KW - reference temperature
KW - small punch
UR - https://www.scopus.com/pages/publications/85179889401
U2 - 10.1115/PVP2023-105437
DO - 10.1115/PVP2023-105437
M3 - Conference contribution
AN - SCOPUS:85179889401
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
BT - Codes and Standards
PB - American Society of Mechanical Engineers (ASME)
Y2 - 16 July 2023 through 21 July 2023
ER -