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http://repositorio.ufc.br/handle/riufc/66307| Type: | Artigo de Periódico |
| Title: | Microstructural characterization of the HAZ in AISI 444 ferritic stainless steel welds |
| Authors: | Silva, Cleiton Carvalho Farias, Jesualdo Pereira Miranda, Hélio Cordeiro de Guimarães, Rodrigo Freitas Menezes, John Winston Abitibol Marcelino Neto, Moisés Alves |
| Keywords: | Welding;HAZ;Microstructure;Secondary phases;AISI 444 |
| Issue Date: | 2008 |
| Publisher: | Materials Characterization |
| Citation: | SILVA, Cleiton C. et al. Microstructural characterization of the HAZ in AISI 444 ferritic stainless steel welds. Materials Characterization, [s.l.], v. 59, n. 5, p. 528-533, 2008. |
| Abstract: | Ferritic stainless steel is used as a coating for equipment in the petroleum refining industry. Welding is themainmanufacturingandmaintenance processused.However, little information on the metallurgical alterations caused by welding of these steels is found in the literature, prompting this study. In this study the authors evaluated the HAZ microstructure of AISI 444 ferritic stainless steel welded plates, by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results indicated that a weld thermal cycle caused microphase precipitation in the HAZ of the ferritic stainless steel. Also needle-like Laves phase precipitation occurred in the HAZ, near the partially-melted zone. Other secondary phases such as chi and sigma were observed, as well as nitride, carbide and carbonitride precipitates. |
| URI: | http://www.repositorio.ufc.br/handle/riufc/66307 |
| ISSN: | 1044-5803 |
| Appears in Collections: | DEMM - Artigos publicados em revista científica |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2009_art_ccsilvamicrostructural.pdf | 1,13 MB | Adobe PDF | View/Open |
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