Paper Titles
Disorientations and Their Role on the Work-Hardening in Stage IV
p.155
Stability and Motion of Low Angle Dislocation Boundaries in Precipitation Hardened Crystals
p.159
A Three Dimensional Discrete Dislocation Dynamics Analysis of Cyclic Straining in 316L Stainless Steel
p.163
The Migration of Solute Atoms in the Stress Field of a Slowly Moving Crack
p.167
Modelling Cleavage Fracture in High Strength Steels and Their Welds
p.171
Micromechanisms of Cleavage Fracture in HAZ of Low Carbon Steel Welds
p.175
Dislocation Structures of Duplex Stainless Steel in Uniaxial and Biaxial Cyclic Loading
p.179
Microstructure and Thermal Stability of Ultra Fine Grained Mg and Mg-Gd Alloys Prepared by High-Pressure Torsion
p.183
Annealing Behaviour of Fe-C-N Nanopowder: Formation of Iron/Graphite Core-Shell Structured Nanoparticles
p.187

Modelling Cleavage Fracture in High Strength Steels and Their Welds

Article Preview

Abstract:

High strength steels are characterized by their high yield strength, but to guarantee a safe design, a sufficiently large fracture toughness value is also required. In this paper, the fracture toughness of three high strength steels (sy= 460-890 MPa) and their welds has been studied at low temperatures. Experimental results have been used to validate a statistical “weakest link” fracture model. The model takes into account the possibility of fracture nucleation in different types of particles and brittle phases, as well as the crack-arrest factors at the different microstructural barriers (particle-matrix interface and grain boundaries).

You might also be interested in these eBooks
Materials Structure & Micromechanics of Fracture View Preview

Info:

Periodical:

Materials Science Forum (Volume 482)

Pages:

171-174

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.482.171

Citation:

Cite this paper

Online since:

April 2005

Authors:

Rodolfo-Martín Rodriguez, I. Ocaña-Arizcorreta, A. Martín-Meizoso

Keywords:

Cleavage, Fracture Toughness, Microstructure, Weld

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] McMahon, C.J. and Cohen, M., Initiation of cleavage in polycrystalline iron, Acta Metall., 13, 591 (1965).

Google Scholar

[2] Standard test methods for tension testing on metallic materials (metric) ASTM E8M-89.

Google Scholar

[3] ESIS procedure for determining the fracture behavior of materials. ESIS P2-91D.

Google Scholar

[4] Kaechele, L.E., Tetelman, A.S., A statistical investigation of microcrack propagation,. Acta Metall., 17, 463 (1969).

Google Scholar

[5] Martín-Meizoso, A., Ocaña-Arizcorreta, I., Gil-Sevillano, J. and Fuentes-Pérez, M. Modelling Cleavage Fracture of Bainitic Steels, Acta Metall., 42, 6, 2057-2068, (1994).

DOI: 10.1016/0956-7151(94)90031-0

Google Scholar

[6] Hahn, G.T. Metall. Trans. A, 15A, 947 (1984).

Google Scholar