Creep of High-Strength Steel Coated with Plasma Sprayed Self-Fluxing Alloy
This article compares the creep testing behavior of AISI 4340 high-strength steel in the as-received and coated conditions. The coating material used was a NiCrBSi self-fluxing alloy. The microstructural characterization was carried out using optical and scanning electron microscopy. The creep tests...
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| Format: | Article |
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MDPI AG
2023-04-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/4/763 |
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| author | Denison A. Moraes Gisele F. C. Almeida Antonio A. Couto Marcos Massi Felipe R. Caliari Carlos R. C. Lima |
| author_facet | Denison A. Moraes Gisele F. C. Almeida Antonio A. Couto Marcos Massi Felipe R. Caliari Carlos R. C. Lima |
| author_sort | Denison A. Moraes |
| collection | DOAJ |
| description | This article compares the creep testing behavior of AISI 4340 high-strength steel in the as-received and coated conditions. The coating material used was a NiCrBSi self-fluxing alloy. The microstructural characterization was carried out using optical and scanning electron microscopy. The creep tests were conducted at a temperature of 550 °C and with loads of 200, 250, and 300 MPa. The microstructure analysis of the deposited layer revealed some inclusions, very low porosity, and good adhesion to the substrate. The results of the creep tests indicated a decrease in the time to rupture under loads of 250 and 300 MPa for the coated steel. At a load of 200 MPa, the coated steel presented longer times to rupture and higher yield strength, demonstrating an improvement over the uncoated steel under these test condition. The fracture surface inspection showed a failure by a ductile fracture in both samples, with and without coating. |
| first_indexed | 2024-03-11T04:44:27Z |
| format | Article |
| id | doaj.art-3e66023014da4b5191ecdf8284bdce78 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T04:44:27Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj.art-3e66023014da4b5191ecdf8284bdce782023-11-17T20:27:21ZengMDPI AGMetals2075-47012023-04-0113476310.3390/met13040763Creep of High-Strength Steel Coated with Plasma Sprayed Self-Fluxing AlloyDenison A. Moraes0Gisele F. C. Almeida1Antonio A. Couto2Marcos Massi3Felipe R. Caliari4Carlos R. C. Lima5School of Engineering, Mackenzie Presbyterian University, São Paulo 01302-907, BrazilSchool of Engineering, Mackenzie Presbyterian University, São Paulo 01302-907, BrazilSchool of Engineering, Mackenzie Presbyterian University, São Paulo 01302-907, BrazilSchool of Engineering, Mackenzie Presbyterian University, São Paulo 01302-907, BrazilCenter for Thermal Spray Research, Stony Brook University, 100 Nicolls Rd, Stony Brook, NY 11794, USASchool of Engineering, Mackenzie Presbyterian University, São Paulo 01302-907, BrazilThis article compares the creep testing behavior of AISI 4340 high-strength steel in the as-received and coated conditions. The coating material used was a NiCrBSi self-fluxing alloy. The microstructural characterization was carried out using optical and scanning electron microscopy. The creep tests were conducted at a temperature of 550 °C and with loads of 200, 250, and 300 MPa. The microstructure analysis of the deposited layer revealed some inclusions, very low porosity, and good adhesion to the substrate. The results of the creep tests indicated a decrease in the time to rupture under loads of 250 and 300 MPa for the coated steel. At a load of 200 MPa, the coated steel presented longer times to rupture and higher yield strength, demonstrating an improvement over the uncoated steel under these test condition. The fracture surface inspection showed a failure by a ductile fracture in both samples, with and without coating.https://www.mdpi.com/2075-4701/13/4/763AISI 4340 steelplasma spraycreepself-fluxing alloy |
| spellingShingle | Denison A. Moraes Gisele F. C. Almeida Antonio A. Couto Marcos Massi Felipe R. Caliari Carlos R. C. Lima Creep of High-Strength Steel Coated with Plasma Sprayed Self-Fluxing Alloy Metals AISI 4340 steel plasma spray creep self-fluxing alloy |
| title | Creep of High-Strength Steel Coated with Plasma Sprayed Self-Fluxing Alloy |
| title_full | Creep of High-Strength Steel Coated with Plasma Sprayed Self-Fluxing Alloy |
| title_fullStr | Creep of High-Strength Steel Coated with Plasma Sprayed Self-Fluxing Alloy |
| title_full_unstemmed | Creep of High-Strength Steel Coated with Plasma Sprayed Self-Fluxing Alloy |
| title_short | Creep of High-Strength Steel Coated with Plasma Sprayed Self-Fluxing Alloy |
| title_sort | creep of high strength steel coated with plasma sprayed self fluxing alloy |
| topic | AISI 4340 steel plasma spray creep self-fluxing alloy |
| url | https://www.mdpi.com/2075-4701/13/4/763 |
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