Artículo
Mingolo, N.; Roviglione, A.N.; Martínez, O.E. "Steel surface roughening by transient self dewetting after pulsed electron beam melting" (2002) Surface Engineering. 18(1):50-52
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Abstract:
Experimental evidence of surface roughening by transient self dewetting of metallic surfaces is presented. Steel surfaces are melted by a pulsed electron gun and the subsequent fast cooling against the substrate gives rise to the formation of characteristic patterns that are attributed to the dewetting of the liquid film. The patterns formed are similar to those obtained by spinodal dewetting, that is, when the dewetting action develops from a non-linear instability on the liquid surface, and not from hole nucleation. The patterns are characterised by the presence of valleys of unmelted substrate surrounded by ridges of resolidified material. Martensitic steels can form ferritic substrates with martensitic ridges. Two possible mechanisms responsible for the onset of the surface instability are proposed.
Registro:
| Documento: | Artículo |
| Título: | Steel surface roughening by transient self dewetting after pulsed electron beam melting |
| Autor: | Mingolo, N.; Roviglione, A.N.; Martínez, O.E. |
| Filiación: | Facultad de Ingenieria, Universidad de Buenos Aires, Paseo Colón 850, 1063 Buenos Aires, Argentina Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina |
| Palabras clave: | Austenite; Electron beams; Electron guns; Ferrite; Martensite; Melting; Pearlite; Stainless steel; Thin films; Wetting; Dewetting; Liquid film; Pulsed electron beam melting; Surface roughening; Surface roughness |
| Año: | 2002 |
| Volumen: | 18 |
| Número: | 1 |
| Página de inicio: | 50 |
| Página de fin: | 52 |
| DOI: | http://dx.doi.org/10.1179/026708401225001237 |
| Título revista: | Surface Engineering |
| Título revista abreviado: | Surf Eng |
| ISSN: | 02670844 |
| CODEN: | SUENE |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02670844_v18_n1_p50_Mingolo |
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Citas:
---------- APA ----------
Mingolo, N., Roviglione, A.N. & Martínez, O.E. (2002) . Steel surface roughening by transient self dewetting after pulsed electron beam melting. Surface Engineering, 18(1), 50-52.http://dx.doi.org/10.1179/026708401225001237
---------- CHICAGO ----------
Mingolo, N., Roviglione, A.N., Martínez, O.E. "Steel surface roughening by transient self dewetting after pulsed electron beam melting" . Surface Engineering 18, no. 1 (2002) : 50-52.http://dx.doi.org/10.1179/026708401225001237
---------- MLA ----------
Mingolo, N., Roviglione, A.N., Martínez, O.E. "Steel surface roughening by transient self dewetting after pulsed electron beam melting" . Surface Engineering, vol. 18, no. 1, 2002, pp. 50-52.http://dx.doi.org/10.1179/026708401225001237
---------- VANCOUVER ----------
Mingolo, N., Roviglione, A.N., Martínez, O.E. Steel surface roughening by transient self dewetting after pulsed electron beam melting. Surf Eng. 2002;18(1):50-52.http://dx.doi.org/10.1179/026708401225001237
