Investigation into tribocorrosion behaviors of CoCrFeNiNb laser-clad coatings with Y2O3
Some components made of titanium alloys will serve in corrosive environments in the industry, and suffer from corrosion and wear at the same time. However, the components exhibit the high wear and corrosion rates due to their low hardness and the extremely thin oxidation film formed on their surface...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2024-01-01
|
| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ad8ffc |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849221153001832448 |
|---|---|
| author | Yashan Li Jun Li Ruoliu Li Junxiang Mo Soowohn Lee |
| author_facet | Yashan Li Jun Li Ruoliu Li Junxiang Mo Soowohn Lee |
| author_sort | Yashan Li |
| collection | DOAJ |
| description | Some components made of titanium alloys will serve in corrosive environments in the industry, and suffer from corrosion and wear at the same time. However, the components exhibit the high wear and corrosion rates due to their low hardness and the extremely thin oxidation film formed on their surfaces, which can accelerate their failure and reduce their service life. In response to this situation, CoCrFeNiNb high-entropy alloys (HEAs) coatings with Y _2 O _3 (0 wt%, 1 wt%, 2 wt%, and 3 wt%) were successfully prepared on Ti6Al4V by laser cladding. The effects of Y _2 O _3 addition content on the microstructure, corrosion and mechanical properties were investigated comprehensively by x-ray diffractometry (XRD), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), microhardness tests, electrochemical tests and tribocorrosion tests in this work. Other than them, tribocorrosion behaviors of the coatings were especially highlighted in two different environments (neutral (pH 7) and acid (pH 3) solutions). The results showed the significant enhancement in microhardness with the introduction of Y _2 O _3 due to the microstructural refinement and the formation of Laves phase Cr _2 Nb in the coatings. The coating with 2 wt% Y _2 O _3 performed the most excellent corrosion resistance (neutral solution: E _corr = −0.12 V; acid solution: E _corr = 0.043 V) increased by 55.5% and 115.0% of the coating without Y _2 O _3 . As well as, the coating also demonstrated the lowest wear rates (neutral solution: 3.32 × 10 ^−4 mm ^3 ·N ^−1 ·m ^−1 ; acid solution: 2.24 × 10 ^−4 mm ^3 ·N ^−1 ·m ^−1 ) reduced by 17.8% and 33.3% of the coating without Y _2 O _3 . The superior tribocorrosion resistance and corrosion resistance make CoCrFeNiNb+2 wt% Y _2 O _3 HEA coating show a tremendous potential in aerospace and marine applications. |
| format | Article |
| id | doaj-art-d63bbd2d58b44bdea9cfa8d8c8a7e70b |
| institution | Kabale University |
| issn | 2053-1591 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-d63bbd2d58b44bdea9cfa8d8c8a7e70b2024-11-19T11:57:50ZengIOP PublishingMaterials Research Express2053-15912024-01-01111111651710.1088/2053-1591/ad8ffcInvestigation into tribocorrosion behaviors of CoCrFeNiNb laser-clad coatings with Y2O3Yashan Li0https://orcid.org/0009-0007-9427-8239Jun Li1https://orcid.org/0000-0001-5806-8655Ruoliu Li2Junxiang Mo3Soowohn Lee4https://orcid.org/0000-0002-0285-6959School of Materials Science and Engineering, Shanghai University of Engineering Science , Shanghai 201620, People’s Republic of ChinaSchool of Materials Science and Engineering, Shanghai University of Engineering Science , Shanghai 201620, People’s Republic of ChinaSchool of Materials Science and Engineering, Shanghai University of Engineering Science , Shanghai 201620, People’s Republic of ChinaSchool of Materials Science and Engineering, Shanghai University of Engineering Science , Shanghai 201620, People’s Republic of ChinaDepartment of Environment and Bio-chemical Engineering, Sun Moon University , Chungnam 31460, Republic of KoreaSome components made of titanium alloys will serve in corrosive environments in the industry, and suffer from corrosion and wear at the same time. However, the components exhibit the high wear and corrosion rates due to their low hardness and the extremely thin oxidation film formed on their surfaces, which can accelerate their failure and reduce their service life. In response to this situation, CoCrFeNiNb high-entropy alloys (HEAs) coatings with Y _2 O _3 (0 wt%, 1 wt%, 2 wt%, and 3 wt%) were successfully prepared on Ti6Al4V by laser cladding. The effects of Y _2 O _3 addition content on the microstructure, corrosion and mechanical properties were investigated comprehensively by x-ray diffractometry (XRD), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), microhardness tests, electrochemical tests and tribocorrosion tests in this work. Other than them, tribocorrosion behaviors of the coatings were especially highlighted in two different environments (neutral (pH 7) and acid (pH 3) solutions). The results showed the significant enhancement in microhardness with the introduction of Y _2 O _3 due to the microstructural refinement and the formation of Laves phase Cr _2 Nb in the coatings. The coating with 2 wt% Y _2 O _3 performed the most excellent corrosion resistance (neutral solution: E _corr = −0.12 V; acid solution: E _corr = 0.043 V) increased by 55.5% and 115.0% of the coating without Y _2 O _3 . As well as, the coating also demonstrated the lowest wear rates (neutral solution: 3.32 × 10 ^−4 mm ^3 ·N ^−1 ·m ^−1 ; acid solution: 2.24 × 10 ^−4 mm ^3 ·N ^−1 ·m ^−1 ) reduced by 17.8% and 33.3% of the coating without Y _2 O _3 . The superior tribocorrosion resistance and corrosion resistance make CoCrFeNiNb+2 wt% Y _2 O _3 HEA coating show a tremendous potential in aerospace and marine applications.https://doi.org/10.1088/2053-1591/ad8ffcTi6Al4Vlaser claddingmicrostructuretribocorrosion resistancecorrosion resistance |
| spellingShingle | Yashan Li Jun Li Ruoliu Li Junxiang Mo Soowohn Lee Investigation into tribocorrosion behaviors of CoCrFeNiNb laser-clad coatings with Y2O3 Materials Research Express Ti6Al4V laser cladding microstructure tribocorrosion resistance corrosion resistance |
| title | Investigation into tribocorrosion behaviors of CoCrFeNiNb laser-clad coatings with Y2O3 |
| title_full | Investigation into tribocorrosion behaviors of CoCrFeNiNb laser-clad coatings with Y2O3 |
| title_fullStr | Investigation into tribocorrosion behaviors of CoCrFeNiNb laser-clad coatings with Y2O3 |
| title_full_unstemmed | Investigation into tribocorrosion behaviors of CoCrFeNiNb laser-clad coatings with Y2O3 |
| title_short | Investigation into tribocorrosion behaviors of CoCrFeNiNb laser-clad coatings with Y2O3 |
| title_sort | investigation into tribocorrosion behaviors of cocrfeninb laser clad coatings with y2o3 |
| topic | Ti6Al4V laser cladding microstructure tribocorrosion resistance corrosion resistance |
| url | https://doi.org/10.1088/2053-1591/ad8ffc |
| work_keys_str_mv | AT yashanli investigationintotribocorrosionbehaviorsofcocrfeninblasercladcoatingswithy2o3 AT junli investigationintotribocorrosionbehaviorsofcocrfeninblasercladcoatingswithy2o3 AT ruoliuli investigationintotribocorrosionbehaviorsofcocrfeninblasercladcoatingswithy2o3 AT junxiangmo investigationintotribocorrosionbehaviorsofcocrfeninblasercladcoatingswithy2o3 AT soowohnlee investigationintotribocorrosionbehaviorsofcocrfeninblasercladcoatingswithy2o3 |