The influence of mechanical twinning on the fracture toughness of structural steels

1980 ◽  
Vol 15 (5) ◽  
pp. 484-489
Author(s):  
O. N. Romaniv ◽  
A. N. Tkach ◽  
M. F. Zamora ◽  
A. I. Kondyr'
Keyword(s):  
Fracture Toughness ◽  
Structural Steels ◽  
Mechanical Twinning

Effect of desulphurization on the fracture toughness of structural steels at climatic temperatures

1990 ◽  
Vol 22 (11) ◽  
pp. 1569-1577
Author(s):  
A. Yu. Shul'te ◽  
A. V. Prokopenko ◽  
Yu. M. Tomkin ◽  
V. M. Stepkov
Keyword(s):  
Fracture Toughness ◽  
Structural Steels

scholarly journals Effect of the Strain Rate on the Fracture Behaviour of High Pressure Pre-Charged Samples

Proceedings ◽  
2018 ◽  
Vol 2 (23) ◽  
pp. 1417
Author(s):  
Guillermo Álvarez Díaz ◽  
Tomás Eduardo García Suárez ◽  
Cristina. Rodríguez González ◽  
Francisco Javier Belzunce Varela
Keyword(s):  
Fracture Toughness ◽  
High Pressure ◽  
Hydrogen Embrittlement ◽  
Strain Rate ◽  
Fracture Behaviour ◽  
Structural Steels ◽  
Gaseous Hydrogen ◽  
Displacement Rate ◽  
Steel Strength ◽  
Fracture Tests

The aim of this work is to study the effect of the displacement rate on the hydrogen embrittlement of two different structural steels grades used in energetic applications. With this purpose, samples were pre-charged with gaseous hydrogen at 19.5 MPa and 450 °C for 21 h. Then, fracture tests of the pre-charged specimens were performed, using different displacement rates. It is showed that the lower is the displacement rate and the largest is the steel strength, the strongest is the reduction of the fracture toughness due to the presence of internal hydrogen.

Evaluation of the fracture toughness of structural steels under high-speed deformation

1993 ◽  
Vol 25 (5) ◽  
pp. 355-362
Author(s):  
V. I. Kir'yan ◽  
A. P. Vashchenko ◽  
L. A. Volgin ◽  
S. V. Shamanovskii
Keyword(s):  
Fracture Toughness ◽  
High Speed ◽  
Structural Steels ◽  
High Speed Deformation

Recent Developments and Challenges of Cleavage Fracture Modelling in Steels: Aspects on Microstructural Mechanics and Local Approach Methods

2019 ◽  
Author(s):  
Quanxin Jiang ◽  
V. M. Bertolo ◽  
V. A. Popovich ◽  
Carey L. Walters
Keyword(s):  
Fracture Toughness ◽  
Cleavage Fracture ◽  
Structural Integrity ◽  
State Of The Art ◽  
Structural Steels ◽  
Ferritic Steels ◽  
Local Approach ◽  
Microstructural Parameters ◽  
Recent Developments ◽  
Size Scales

Abstract Offshore activity in low-temperature areas requires the use of analysis methods that are capable of reliably predicting cleavage (brittle) fracture of ferritic steels in order to guarantee the structural integrity during service. Cleavage fracture is controlled by physical events at different size scales and is influenced by the multiple microstructural parameters of the material. The prediction of fracture toughness of steels based on the microstructure has received great attention, and relevant techniques have been continuously developed. This paper is aimed at reviewing the recent development of cleavage fracture modelling in steels and identifying the existing challenges to inspire further research. The paper contains three parts aimed at explaining how methods are developed and utilized to predict fracture toughness of steel from its microstructures. (1) The complex multiparametric nature of the microstructures of ferritic steels and its influence on cleavage fracture is introduced. (2) A review is given on the main perspectives and models in micromechanisms of cleavage fracture in steels. (3) Discussion is contributed to the link between micromechanisms and the local approach in cleavage fracture modelling. As a result, the paper gives a state of the art on microstructural mechanics and local approach methods of cleavage fracture modelling in structural steels.

DIPLUS-S

Alloy Digest ◽  
2015 ◽  
Vol 64 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
Heat Treating ◽  
Structural Steels ◽  
Minimum Requirements

Abstract The specification DIPLUS-S stipulates the requirements for non-alloy structural steels above and beyond the minimum requirements stated in the EN 10025, Part 2 standard. The specification applies to the following grades in conformity to EN 10025, Part 2, in the thickness range stated: S235J0/J2, S275J0/J2, and S355J0/J2/K2 in thicknesses 6-250 mm (0.24-9.8 in.). This datasheet provides information on composition and physical properties as well as fracture toughness. It also includes information on heat treating. Filing Code: CS-189. Producer or source: Dillinger Hütte GTS.

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