| Full text | |
| Author(s): |
Total Authors: 2
|
| Affiliation: | [1] Heat Tech Technol Heat Treatment & Surface Engn L, BR-08830000 Mogi Das Cruzes, SP - Brazil
[2] Univ Mogi das Cruzes, BR-08830000 Mogi Das Cruzes, SP - Brazil
[3] Univ Sao Paulo, Met & Mat Engn Dept, BR-05508030 Sao Paulo - Brazil
Total Affiliations: 3
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| Document type: | Journal article |
| Source: | Rem: Revista Escola de Minas; v. 66, n. 2, p. 209-214, APR-JUN 2013. |
| Web of Science Citations: | 1 |
| Abstract | |
In this work an austenitic AISI 316L and a duplex AISI F51 (EN 1.4462) stainless steel were DC-Plasma carburized at 480ºC, using CH4 as carbon carrier gas. For the austenitic AISI 316L stainless steel, low temperature plasma carburizing induced a strong carbon supersaturation in the austenitic lattice and the formation of carbon expanded austenite (γC) without any precipitation of carbides. The hardness of the carburized AISI 316L steel reached a maximum of 1000 HV due to ∼13 at% carbon supersaturation and expansion of the FCC lattice. For the duplex stainless steel AISI F51, the austenitic grains transformed to carbon expanded austenite (γC), the ferritic grains transformed to carbon expanded ferrite (αC) and M23C6 type carbides precipitated in the nitrided case. Hardness of the carburized case of the F51 duplex steel reached 1600 HV due to the combined effects of austenite and ferrite lattice expansion with a fine and dispersed precipitation of M23C6 carbides. (AU) | |
| FAPESP's process: | 03/10157-2 - Study the correlation between film deposition processes and the tribological properties of the resultant coatings |
| Grantee: | Andre Paulo Tschiptschin |
| Support Opportunities: | PRONEX Research - Thematic Grants |