Study of the evolution of the residual stress state in thermal barrier coatings sprayed on AISI 304 stainless steel
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional de Colombia
2016
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| _version_ | 1876447550151589888 |
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| author | Pedro Yáñez-Contreras |
| author_facet | Pedro Yáñez-Contreras |
| contents | Study of the evolution of the residual stress state in thermal barrier coatings sprayed on AISI 304 stainless steel Pedro Yáñez-Contreras José Dolores Oscar Barceinas-Sánchez Carlos Agustín Poblano-Salas José Martín Medina-Flores Adrián Luis García-García Iván Domínguez-López Ingeniería residual stress thermal spraying Thermal barrier coating modified layer removal method Modified Layer Removal Method for Duplex Coatings Thermal barrier coatings (TBC) were manufactured by thermal spraying of CoNiCrAlY and YSZ powders, which constituted the bond coat (BC) and top coat (TC), respectively. The BC was deposited on stainless steel substrates by a high velocity oxygen fuel (HVOF) system whilst the TC was deposited on the BC by an atmospheric plasma spraying (APS) gun .TBCs were heat treated at 1200 °C for 8 and 16 h in order to determine the evolution of the residual stress state as a function of time. The residual stress profiles were obtained by employing the Modified Layer Removal Method (MLRM) and an adaptation of this for bilayer coatings called Modified Layer Removal Method for Duplex Coatings (MLRMDC). It was observed that as the exposure time was increased, the compressive residual stresses increased, which was more noticeable in the BCs. The TBCs without heat treatment revealed tensile residual stresses. 2016 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49645986021 https://www.redalyc.org/journal/496/49645986021/ https://www.redalyc.org/journal/496/49645986021/html/ https://www.redalyc.org/journal/496/49645986021/49645986021.epub https://www.redalyc.org/journal/496/49645986021/movil en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.197 Vol.83 |
| format | Artículo científico |
| id | redalyc_49645986021 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Study of the evolution of the residual stress state in thermal barrier coatings sprayed on AISI 304 stainless steel Pedro Yáñez-Contreras Ingeniería residual stress thermal spraying Thermal barrier coating modified layer removal method Modified Layer Removal Method for Duplex Coatings Study of the evolution of the residual stress state in thermal barrier coatings sprayed on AISI 304 stainless steel Pedro Yáñez-Contreras José Dolores Oscar Barceinas-Sánchez Carlos Agustín Poblano-Salas José Martín Medina-Flores Adrián Luis García-García Iván Domínguez-López Ingeniería residual stress thermal spraying Thermal barrier coating modified layer removal method Modified Layer Removal Method for Duplex Coatings Thermal barrier coatings (TBC) were manufactured by thermal spraying of CoNiCrAlY and YSZ powders, which constituted the bond coat (BC) and top coat (TC), respectively. The BC was deposited on stainless steel substrates by a high velocity oxygen fuel (HVOF) system whilst the TC was deposited on the BC by an atmospheric plasma spraying (APS) gun .TBCs were heat treated at 1200 °C for 8 and 16 h in order to determine the evolution of the residual stress state as a function of time. The residual stress profiles were obtained by employing the Modified Layer Removal Method (MLRM) and an adaptation of this for bilayer coatings called Modified Layer Removal Method for Duplex Coatings (MLRMDC). It was observed that as the exposure time was increased, the compressive residual stresses increased, which was more noticeable in the BCs. The TBCs without heat treatment revealed tensile residual stresses. 2016 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49645986021 https://www.redalyc.org/journal/496/49645986021/ https://www.redalyc.org/journal/496/49645986021/html/ https://www.redalyc.org/journal/496/49645986021/49645986021.epub https://www.redalyc.org/journal/496/49645986021/movil en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.197 Vol.83 |
| title | Study of the evolution of the residual stress state in thermal barrier coatings sprayed on AISI 304 stainless steel |
| topic | Ingeniería residual stress thermal spraying Thermal barrier coating modified layer removal method Modified Layer Removal Method for Duplex Coatings |
| url | https://www.redalyc.org/articulo.oa?id=49645986021 https://www.redalyc.org/journal/496/49645986021/ https://www.redalyc.org/journal/496/49645986021/html/ https://www.redalyc.org/journal/496/49645986021/49645986021.epub https://www.redalyc.org/journal/496/49645986021/movil |