| Title | Achieving low wear in a complex concentrated alloy CrFeNiNb with multi-phase hierarchical microstructure |
| Author | |
| Corresponding Author | Ren, Fuzeng |
| Publication Years | 2023-11-01
|
| DOI | |
| Source Title | |
| ISSN | 1359-8368
|
| EISSN | 1879-1069
|
| Volume | 266 |
| Abstract | We propose a strategy to achieve low wear in a complex concentrated alloy (CCA) CrFeNiNb with multi-phase hierarchical microstructure. The CCA comprises a matrix of ultrafine-grained hexagonal close-packed (HCP) Laves phase (80.3 vol%), a secondary face-centered cubic (FCC) phase (18.3 vol%), a minor amount of (Nb,Cr)oxides and a trace amount of uniformly dispersed nanoscale precipitates. The CrFeNiNb CCA exhibits an ultrahigh hardness of 993 (+/- 22) HV and an extremely low wear rate of 7.4 (+/- 0.6) x 10-6 mm3/(N center dot m) when sliding against a silicon nitride (Si3N4) ball. To elucidate the wear mechanism, we characterized the morphology, chemical composition and cross-sectional microstructure of the wear track. The results indicate that the cracked oxide layer, subgrain formation in the FCC phase, and the Shockley partial and full dislocations-triggered intragranular prismatic slip in the C14 Laves phase synergically contribute to the exceptional wear resistance. Furthermore, we conducted a detailed analysis of the chemical composition and crystal structure of the cracked oxide layer, along with a compressive discussion of the subsurface deformation of HCP/FCC phases. These findings offer significant insights into designing wear-resistant alloy through the formation of multi-phase hierarchical microstructure. |
| Keywords | |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| SUSTech Authorship | First
; Corresponding
|
| Funding Project | National Natural Science Foundation of China[52122102]
; Guangdong Basic and Applied Basic Research Foundation[2022B1515120082]
; Basic Research Program of Shenzhen[JCYJ20220530113017040]
|
| WOS Research Area | Engineering
; Materials Science
|
| WOS Subject | Engineering, Multidisciplinary
; Materials Science, Composites
|
| WOS Accession No | WOS:001079612300001
|
| Publisher | |
| ESI Research Field | MATERIALS SCIENCE
|
| Data Source | Web of Science
|
| Citation statistics | |
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/582991 |
| Department | Department of Materials Science and Engineering |
| Affiliation | Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China |
| First Author Affilication | Department of Materials Science and Engineering |
| Corresponding Author Affilication | Department of Materials Science and Engineering |
| First Author's First Affilication | Department of Materials Science and Engineering |
| Recommended Citation GB/T 7714 |
Liang, Dingshan,Duan, Ranxi,Luo, Jiasi,et al. Achieving low wear in a complex concentrated alloy CrFeNiNb with multi-phase hierarchical microstructure[J]. COMPOSITES PART B-ENGINEERING,2023,266.
|
| APA |
Liang, Dingshan,Duan, Ranxi,Luo, Jiasi,Yang, Lu,Chu, Kangjie,&Ren, Fuzeng.(2023).Achieving low wear in a complex concentrated alloy CrFeNiNb with multi-phase hierarchical microstructure.COMPOSITES PART B-ENGINEERING,266.
|
| MLA |
Liang, Dingshan,et al."Achieving low wear in a complex concentrated alloy CrFeNiNb with multi-phase hierarchical microstructure".COMPOSITES PART B-ENGINEERING 266(2023).
|
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