Effects of Nb additions and heat treatments on the microstructure, hardness and wear resistance of CuNiCrSiCoTiNbx high-entropy alloys
Abstract: In this research, a set of CuNiCrSiCoTi (H-0Nb), CuNiCrSiCoTiNb0.5 (H-0.5Nb) and CuNiCrSiCoTiNb1 (H-1Nb) high-entropy alloys (HEAs) were melted in a vacuum induction furnace. The effects of Nb additions on the microstructure, hardness, and wear behavior of these HEAs (compared with a CuBe...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Multidisciplinary Digital Publishing Institute
2022
|
| Online Access: | http://eprints.uanl.mx/29676/7/29676.pdf |
| _version_ | 1838551020101173248 |
|---|---|
| author | Avila Salgado, Denis Ariel Juárez Hernández, Arturo Lara Banda, María Bedolla Jacuinde, Arnoldo Guerra, Francisco V. |
| author_facet | Avila Salgado, Denis Ariel Juárez Hernández, Arturo Lara Banda, María Bedolla Jacuinde, Arnoldo Guerra, Francisco V. |
| author_sort | Avila Salgado, Denis Ariel |
| collection | Repositorio Institucional |
| description | Abstract: In this research, a set of CuNiCrSiCoTi (H-0Nb), CuNiCrSiCoTiNb0.5 (H-0.5Nb) and CuNiCrSiCoTiNb1 (H-1Nb) high-entropy alloys (HEAs) were melted in a vacuum induction furnace. The effects of Nb additions on the microstructure, hardness, and wear behavior of these HEAs (compared with a CuBe commercial alloy) in the as-cast (AC) condition, and after solution (SHT) and aging (AT) heat treatments, were investigated using X-ray diffraction, optical microscopy, and electron microscopy. A ball-on-disc configuration tribometer was used to study wear behavior. XRD and SEM results showed that an increase in Nb additions and modification by heat treatment (HT) favored the formation of BCC and FCC crystal structures (CS), dendritic regions, and the precipitation of phases that promoted microstructure refinement during solidification. Increases in hardness of HEA systems were recorded after heat treatment and Nb additions. Maximum hardness values were recorded for the H-1Nb alloy with measured increases from 107.53 HRB (AC) to 112.98 HRB, and from 1104 HV to 1230 HV (aged for 60 min). However, the increase in hardness caused by Nb additions did not contribute to wear resistance response. This can be attributed to a high distribution of precipitated phases rich in high-hardness NiSiTi and CrSi. Finally, the H-0Nb alloy exhibited the best wear resistance behavior in the aged condition of 30 min, with a material loss of 0.92 mm3. |
| format | Article |
| id | eprints-29676 |
| institution | UANL |
| language | English |
| publishDate | 2022 |
| publisher | Multidisciplinary Digital Publishing Institute |
| record_format | eprints |
| spelling | eprints-296762025-07-15T16:58:05Z http://eprints.uanl.mx/29676/ Effects of Nb additions and heat treatments on the microstructure, hardness and wear resistance of CuNiCrSiCoTiNbx high-entropy alloys Avila Salgado, Denis Ariel Juárez Hernández, Arturo Lara Banda, María Bedolla Jacuinde, Arnoldo Guerra, Francisco V. Abstract: In this research, a set of CuNiCrSiCoTi (H-0Nb), CuNiCrSiCoTiNb0.5 (H-0.5Nb) and CuNiCrSiCoTiNb1 (H-1Nb) high-entropy alloys (HEAs) were melted in a vacuum induction furnace. The effects of Nb additions on the microstructure, hardness, and wear behavior of these HEAs (compared with a CuBe commercial alloy) in the as-cast (AC) condition, and after solution (SHT) and aging (AT) heat treatments, were investigated using X-ray diffraction, optical microscopy, and electron microscopy. A ball-on-disc configuration tribometer was used to study wear behavior. XRD and SEM results showed that an increase in Nb additions and modification by heat treatment (HT) favored the formation of BCC and FCC crystal structures (CS), dendritic regions, and the precipitation of phases that promoted microstructure refinement during solidification. Increases in hardness of HEA systems were recorded after heat treatment and Nb additions. Maximum hardness values were recorded for the H-1Nb alloy with measured increases from 107.53 HRB (AC) to 112.98 HRB, and from 1104 HV to 1230 HV (aged for 60 min). However, the increase in hardness caused by Nb additions did not contribute to wear resistance response. This can be attributed to a high distribution of precipitated phases rich in high-hardness NiSiTi and CrSi. Finally, the H-0Nb alloy exhibited the best wear resistance behavior in the aged condition of 30 min, with a material loss of 0.92 mm3. Multidisciplinary Digital Publishing Institute 2022-08-26 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/29676/7/29676.pdf http://eprints.uanl.mx/29676/7.haspreviewThumbnailVersion/29676.pdf Avila Salgado, Denis Ariel y Juárez Hernández, Arturo y Lara Banda, María y Bedolla Jacuinde, Arnoldo y Guerra, Francisco V. (2022) Effects of Nb additions and heat treatments on the microstructure, hardness and wear resistance of CuNiCrSiCoTiNbx high-entropy alloys. Entropy, 24 (9). p. 1195. ISSN 1099-4300 doi:10.3390/e24091195 |
| spellingShingle | Avila Salgado, Denis Ariel Juárez Hernández, Arturo Lara Banda, María Bedolla Jacuinde, Arnoldo Guerra, Francisco V. Effects of Nb additions and heat treatments on the microstructure, hardness and wear resistance of CuNiCrSiCoTiNbx high-entropy alloys |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Effects of Nb additions and heat treatments on the microstructure, hardness and wear resistance of CuNiCrSiCoTiNbx high-entropy alloys |
| title_full | Effects of Nb additions and heat treatments on the microstructure, hardness and wear resistance of CuNiCrSiCoTiNbx high-entropy alloys |
| title_fullStr | Effects of Nb additions and heat treatments on the microstructure, hardness and wear resistance of CuNiCrSiCoTiNbx high-entropy alloys |
| title_full_unstemmed | Effects of Nb additions and heat treatments on the microstructure, hardness and wear resistance of CuNiCrSiCoTiNbx high-entropy alloys |
| title_short | Effects of Nb additions and heat treatments on the microstructure, hardness and wear resistance of CuNiCrSiCoTiNbx high-entropy alloys |
| title_sort | effects of nb additions and heat treatments on the microstructure hardness and wear resistance of cunicrsicotinbx high entropy alloys |
| url | http://eprints.uanl.mx/29676/7/29676.pdf |
| work_keys_str_mv | AT avilasalgadodenisariel effectsofnbadditionsandheattreatmentsonthemicrostructurehardnessandwearresistanceofcunicrsicotinbxhighentropyalloys AT juarezhernandezarturo effectsofnbadditionsandheattreatmentsonthemicrostructurehardnessandwearresistanceofcunicrsicotinbxhighentropyalloys AT larabandamaria effectsofnbadditionsandheattreatmentsonthemicrostructurehardnessandwearresistanceofcunicrsicotinbxhighentropyalloys AT bedollajacuindearnoldo effectsofnbadditionsandheattreatmentsonthemicrostructurehardnessandwearresistanceofcunicrsicotinbxhighentropyalloys AT guerrafranciscov effectsofnbadditionsandheattreatmentsonthemicrostructurehardnessandwearresistanceofcunicrsicotinbxhighentropyalloys |