The fracture behavious of 410 stainless steel plate
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Date
1976-08-23
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Journal ISSN
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Publisher
International Institute of Welding
Abstract
A study is reported of the influence if delamination in a 410 (ferritic) stainless steel rolled plate on the orientation dependence of the resistance to fracture of Schnadt specimens during impact testing. Delamination in this material is favoured by the pressure of carbide precipitations on prior austenite grain boundaries.
When the crack pane was parallel to the rolled surface, very low impact energies were recorded below the transition temperature (140°). Below 20°, the fracture was predominately intergranular. However, with increasing temperature, the fracture exhibited greater amounts of transgranular cracking. This latter change continued until the transition temperature was reached where the fracture was completely ductile.
When the crack propagated across the plate width and normal to the rolled surface, the transition temperature was lowered to approximately 20° because delamination favoured plane stress conditions.
The transition temperature was further lowered to less than -40° when the crack propagated through the plate thickness, again due to the effect of delamination. An increase in fracture energy at lower temperature can be attributed to the release of constraint by delamination, and to the difficulty of re-nucleating the crack at each delamination.
Description
Physical copy held by ANSTO Library at DDC: 671.52/21
Keywords
Fracture properties, Stainless steel-410, Impact Tests, Temperature range, Irradiation, Cracks, Materials, Ferrite
Citation
Brown. K. (1976). The fracture behavious of 410 stainless steel plate. Paper presented to the IIW 1976 Public Session & Metals Technology Conference, University of New South Wales, Sydney, Australia, 23 -27 August 1976, (15-6-1-15-6-5).