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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Kočí, Jan | Prague |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Switzner, Nathan T.
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Publications (4/4 displayed)
- 2017FORGING STRAIN RATE AND DEFORMATION TEMPERATURE EFFECTS ON THE FRACTURE TOUGHNESS PROPERTIES OF TYPE 304L STAINLESS STEEL PRECHARGED WITH TRITIUM.citations
- 2014High-energy rate forgings of wedges. Characterization of processing conditions
- 2012Residual Stresses in 21-6-9 Stainless Steel Warm Forgings
- 2010Stainless Steel Microstructure and Mechanical Properties Evaluation
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Stainless Steel Microstructure and Mechanical Properties Evaluation
Abstract
A nitrogen strengthened 21-6-9 stainless steel plate was spinformed into hemispherical test shapes. A battery of laboratory tests was used to characterize the hemispheres. The laboratory tests show that near the pole (axis) of aspinformed hemisphere the yield strength is the lowest because this area endures the least “cold-work” strengthening, i.e., the least deformation. The characterization indicated that stress-relief annealing spinformed stainless steelhemispheres does not degrade mechanical properties. Stress-relief annealing reduces residual stresses while maintaining relatively high mechanical properties. Full annealing completely eliminates residual stresses, but reducesyield strength by about 30%.