Hebsur, Mohan G. ; Abraham, K. P. ; Prasad, Y. V. R. K. (1980) Fatigue crack growth rates and fracture toughness in electroslag refined En 52 steel International Journal of Fatigue, 2 (4). pp. 147-152. ISSN 0142-1123
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/014211...
Related URL: http://dx.doi.org/10.1016/0142-1123(80)90041-9
Abstract
En 52 steel has been electroslag refined and the resultant effects of refining on its mechanical properties have been assessed. It was found that refining caused a decrease in fatigue crack growth rates and increases in fatigue strength, fracture toughness, Charpy fracture energy and tensile ductility. Fatigue crack growth rates in region I and in region III were found to be considerably lower in the electroslag refined steel: they were unaffected in region II. The fracture toughness values for the electroslag refined steel are nearly twice those estimated for the unrefined steel. Measurements on heat-treated samples have shown that the electroslag refined steel has a better response to heat-treatment. The improvement in the mechanical properties is explained in terms of the removal of nonmetallic inclusions and a reduction in the sulphur content of the steel.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 12208 |
| Deposited On: | 10 Nov 2010 04:45 |
| Last Modified: | 12 May 2011 07:21 |
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