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Microstructures and mechanical properties of welded Fe-12Cr-20Mn austenitic stainless steel

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Abstract

The effects of welding on the tensile and fatigue properties of fully annealed and cold-worked Fe-12Cr-20Mn austenitic stainless steel were evaluated. Room temperature and 500 °C tensile tests and room temperature cantilever beam fatigue tests were accomplished on specimens that contained autogenous bead-on-plate welds. The tensile and fatigue properties of the fully annealed material were not significantly influenced by welding. The tensile properties of the welded cold-worked material were also not significantly affected by the presence of a weldment. However, welding caused a large reduction of the fatigue life of the cold-worked material. Fatigue cracks preferentially initiated at large Mn-Si inclusions that formed in the fusion zones of the weldments.

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Authors and Affiliations

  1. Department of Mechanical and Aeronautical Engineering, Clarkson University, 13699-5729, Potsdam, NY, USA

    I. J. Eldridge & D. J. Morrison

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  1. I. J. Eldridge
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  2. D. J. Morrison
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Eldridge, I.J., Morrison, D.J. Microstructures and mechanical properties of welded Fe-12Cr-20Mn austenitic stainless steel. JMEP 3, 606–611 (1994). https://doi.org/10.1007/BF02645258

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  • DOI: https://doi.org/10.1007/BF02645258

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