Mechanical and Microstructural Features of Plasma Cut Edges in a 15 mm Thick S460M Steel Plate
In general, the thermal cutting processes of steel plates are considered to have an influence on microstructures and residual stress distribution, which determines the mechanical properties and performance of cut edges. They also affect the quality of the surface cut edges, which further complicates...
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MDPI AG
2018-06-01
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| Series: | Metals |
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| Online Access: | http://www.mdpi.com/2075-4701/8/6/447 |
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| author | Javier Aldazabal Antonio Martín-Meizoso Andrzej Klimpel Adam Bannister Sergio Cicero |
| author_facet | Javier Aldazabal Antonio Martín-Meizoso Andrzej Klimpel Adam Bannister Sergio Cicero |
| author_sort | Javier Aldazabal |
| collection | DOAJ |
| description | In general, the thermal cutting processes of steel plates are considered to have an influence on microstructures and residual stress distribution, which determines the mechanical properties and performance of cut edges. They also affect the quality of the surface cut edges, which further complicates the problem, because in most cases the surface is subjected to the largest stresses. This paper studies the influence of plasma cutting processes on the mechanical behavior of the cut edges of steel and presents the characterization results of straight plasma arc cut edges of steel plate grade S460M, 15 mm thick. The cutting conditions used are the standard ones for industrial plasma cutting. The metallography of CHAZ (Cut Heat Affected Zones) and hardness profiles versus distance from plasma cut edge surface are tested; the mechanical behavior of different CHAZ layers under the cut edge surface were obtained by testing of instrumented mini-tensile 300 µm thick specimens. Also, the residual stress distribution in the CHAZ was measured by X-ray diffraction. The results for the mechanical properties, microstructure, hardness, and residual stresses are finally compared and discussed. This work concludes that the CHAZ resulting from the plasma cutting process is narrow (about 700 µm) and homogeneous in plate thickness. |
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| id | doaj.art-aea11ae5a1894c07baeb6d0fa8da72e2 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-04-13T23:05:30Z |
| publishDate | 2018-06-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj.art-aea11ae5a1894c07baeb6d0fa8da72e22022-12-22T02:25:42ZengMDPI AGMetals2075-47012018-06-018644710.3390/met8060447met8060447Mechanical and Microstructural Features of Plasma Cut Edges in a 15 mm Thick S460M Steel PlateJavier Aldazabal0Antonio Martín-Meizoso1Andrzej Klimpel2Adam Bannister3Sergio Cicero4CEIT and Tecnun, University of Navarra, Manuel de Lardizábal 15, 20018 San Sebastián, SpainCEIT and Tecnun, University of Navarra, Manuel de Lardizábal 15, 20018 San Sebastián, SpainPolitechnika Slaska—Sutil, ul. Komarskiego 18a, 44-100 Gliwize, PolandTata Steel, Swinden Technology Centre, Moorgate, Rotherham S60 3AR, UKLADICIM (Laboratory of Materials Science and Engineering), E.T.S. de Ingenieros de Caminos, Canales y Puertos, University of Cantabria, Av/Los Castros 44, 39005 Santander, SpainIn general, the thermal cutting processes of steel plates are considered to have an influence on microstructures and residual stress distribution, which determines the mechanical properties and performance of cut edges. They also affect the quality of the surface cut edges, which further complicates the problem, because in most cases the surface is subjected to the largest stresses. This paper studies the influence of plasma cutting processes on the mechanical behavior of the cut edges of steel and presents the characterization results of straight plasma arc cut edges of steel plate grade S460M, 15 mm thick. The cutting conditions used are the standard ones for industrial plasma cutting. The metallography of CHAZ (Cut Heat Affected Zones) and hardness profiles versus distance from plasma cut edge surface are tested; the mechanical behavior of different CHAZ layers under the cut edge surface were obtained by testing of instrumented mini-tensile 300 µm thick specimens. Also, the residual stress distribution in the CHAZ was measured by X-ray diffraction. The results for the mechanical properties, microstructure, hardness, and residual stresses are finally compared and discussed. This work concludes that the CHAZ resulting from the plasma cutting process is narrow (about 700 µm) and homogeneous in plate thickness.http://www.mdpi.com/2075-4701/8/6/447plasma cuttingcut heat affected zonemini-tensile teststeel plateresidual stress |
| spellingShingle | Javier Aldazabal Antonio Martín-Meizoso Andrzej Klimpel Adam Bannister Sergio Cicero Mechanical and Microstructural Features of Plasma Cut Edges in a 15 mm Thick S460M Steel Plate Metals plasma cutting cut heat affected zone mini-tensile test steel plate residual stress |
| title | Mechanical and Microstructural Features of Plasma Cut Edges in a 15 mm Thick S460M Steel Plate |
| title_full | Mechanical and Microstructural Features of Plasma Cut Edges in a 15 mm Thick S460M Steel Plate |
| title_fullStr | Mechanical and Microstructural Features of Plasma Cut Edges in a 15 mm Thick S460M Steel Plate |
| title_full_unstemmed | Mechanical and Microstructural Features of Plasma Cut Edges in a 15 mm Thick S460M Steel Plate |
| title_short | Mechanical and Microstructural Features of Plasma Cut Edges in a 15 mm Thick S460M Steel Plate |
| title_sort | mechanical and microstructural features of plasma cut edges in a 15 mm thick s460m steel plate |
| topic | plasma cutting cut heat affected zone mini-tensile test steel plate residual stress |
| url | http://www.mdpi.com/2075-4701/8/6/447 |
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