Laser composite surfacing of A681 steel with WC + Cr + Co for improved wear resistance
Laser surface alloying (LSA) is a surface treatment technique. It involves the near surface melting by a powerful laser beam with a pre-deposited or concomitantly added alloying element along with a part of the underlying substrate to form a surface alloyed zone. In this paper, it is reported the tr...
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| Format: | Article |
| Language: | English |
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Elsevier
2017-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785416300229 |
| _version_ | 1818281612027101184 |
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| author | Moisés Felipe Teixeira Victor Alexandre Veit Schmachtenberg Gustavo Tontini Guilherme Dalla Lana Semione Walter Lindolfo Weingaertner Valderes Drago |
| author_facet | Moisés Felipe Teixeira Victor Alexandre Veit Schmachtenberg Gustavo Tontini Guilherme Dalla Lana Semione Walter Lindolfo Weingaertner Valderes Drago |
| author_sort | Moisés Felipe Teixeira |
| collection | DOAJ |
| description | Laser surface alloying (LSA) is a surface treatment technique. It involves the near surface melting by a powerful laser beam with a pre-deposited or concomitantly added alloying element along with a part of the underlying substrate to form a surface alloyed zone. In this paper, it is reported the treatment by laser surface alloying of a cold work steel ASTM A681 substrate simultaneously fed with a powder mixture of 86 wt.% WC + 8 wt.% Cr + 6 wt.% Co. It was carried out using a continuous wave λ = 1064 nm fiber-coupled diode laser with five different laser intensities – resulting in five specimens – and then studied and analyzed their microstructure, phases, composition and microhardness. One of these configurations was applied to enhance a deep drawing tool for automotive steel sheet stamping. The process modified the specimens near surface layer, from a ferritic structure into an austenitic matrix with a refined dendritic microstructure, with an enhanced surface hardness from 250 HV to ∼560 HV. The treated deep drawing tool showed remarkable wear improvement compared to a non-treated one after one thousand stamps. This result allows the process for industrial applications. |
| first_indexed | 2024-12-13T00:07:53Z |
| format | Article |
| id | doaj.art-18744eb044e047a6a72e4b76187a3246 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-13T00:07:53Z |
| publishDate | 2017-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-18744eb044e047a6a72e4b76187a32462022-12-22T00:06:07ZengElsevierJournal of Materials Research and Technology2238-78542017-01-0161333910.1016/j.jmrt.2016.04.002Laser composite surfacing of A681 steel with WC + Cr + Co for improved wear resistanceMoisés Felipe Teixeira0Victor Alexandre Veit Schmachtenberg1Gustavo Tontini2Guilherme Dalla Lana Semione3Walter Lindolfo Weingaertner4Valderes Drago5Centro Tecnológico (CTC), Programa de Pós-graduação em Ciência e Engenharia de Materiais (PGMAT), Departamento de Engenharia Mecânica, Universidade Federal de Santa Catarina, Florianópolis, SC, BrazilCentro de Ciências Físicas e Matemáticas (CFM), Programa de Pós-graduação em Física (PGFSC), Departamento de Física, Universidade Federal de Santa Catarina, Florianópolis, SC, BrazilCentro Tecnológico (CTC), Programa de Pós-graduação em Ciência e Engenharia de Materiais (PGMAT), Departamento de Engenharia Mecânica, Universidade Federal de Santa Catarina, Florianópolis, SC, BrazilCentro de Ciências Físicas e Matemáticas (CFM), Programa de Pós-graduação em Física (PGFSC), Departamento de Física, Universidade Federal de Santa Catarina, Florianópolis, SC, BrazilCentro Tecnológico (CTC), Programa de Pós-Graduação em Engenharia Mecânica (POSMEC), Departamento de Engenharia Mecânica, Universidade Federal de Santa Catarina, Florianópolis, SC, BrazilCentro Tecnológico (CTC), Programa de Pós-graduação em Ciência e Engenharia de Materiais (PGMAT), Departamento de Engenharia Mecânica, Universidade Federal de Santa Catarina, Florianópolis, SC, BrazilLaser surface alloying (LSA) is a surface treatment technique. It involves the near surface melting by a powerful laser beam with a pre-deposited or concomitantly added alloying element along with a part of the underlying substrate to form a surface alloyed zone. In this paper, it is reported the treatment by laser surface alloying of a cold work steel ASTM A681 substrate simultaneously fed with a powder mixture of 86 wt.% WC + 8 wt.% Cr + 6 wt.% Co. It was carried out using a continuous wave λ = 1064 nm fiber-coupled diode laser with five different laser intensities – resulting in five specimens – and then studied and analyzed their microstructure, phases, composition and microhardness. One of these configurations was applied to enhance a deep drawing tool for automotive steel sheet stamping. The process modified the specimens near surface layer, from a ferritic structure into an austenitic matrix with a refined dendritic microstructure, with an enhanced surface hardness from 250 HV to ∼560 HV. The treated deep drawing tool showed remarkable wear improvement compared to a non-treated one after one thousand stamps. This result allows the process for industrial applications.http://www.sciencedirect.com/science/article/pii/S2238785416300229Laser surface alloyingComposite boundary layerWCMicrostructureMicrohardnessWear |
| spellingShingle | Moisés Felipe Teixeira Victor Alexandre Veit Schmachtenberg Gustavo Tontini Guilherme Dalla Lana Semione Walter Lindolfo Weingaertner Valderes Drago Laser composite surfacing of A681 steel with WC + Cr + Co for improved wear resistance Journal of Materials Research and Technology Laser surface alloying Composite boundary layer WC Microstructure Microhardness Wear |
| title | Laser composite surfacing of A681 steel with WC + Cr + Co for improved wear resistance |
| title_full | Laser composite surfacing of A681 steel with WC + Cr + Co for improved wear resistance |
| title_fullStr | Laser composite surfacing of A681 steel with WC + Cr + Co for improved wear resistance |
| title_full_unstemmed | Laser composite surfacing of A681 steel with WC + Cr + Co for improved wear resistance |
| title_short | Laser composite surfacing of A681 steel with WC + Cr + Co for improved wear resistance |
| title_sort | laser composite surfacing of a681 steel with wc cr co for improved wear resistance |
| topic | Laser surface alloying Composite boundary layer WC Microstructure Microhardness Wear |
| url | http://www.sciencedirect.com/science/article/pii/S2238785416300229 |
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