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| Hauptseite > Publikationsdatenbank > Performance of wear resistant MCrAlY coatings with oxide dispersion strengthening > print |
| Hauptseite > Publikationsdatenbank > Performance of wear resistant MCrAlY coatings with oxide dispersion strengthening > print |
| 001 | 866332 | ||
| 005 | 20240708132829.0 | ||
| 024 | 7 | _ | |a 10.1016/j.wear.2019.203116 |2 doi |
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| 037 | _ | _ | |a FZJ-2019-05488 |
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| 100 | 1 | _ | |a Bolelli, Giovanni |0 P:(DE-HGF)0 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Performance of wear resistant MCrAlY coatings with oxide dispersion strengthening |
| 260 | _ | _ | |a Amsterdam [u.a.] |c 2020 |b Elsevier Science |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Aiming to devise suitable materials for sliding wear protection at high temperature, aluminium oxide-dispersion strengthened (ODS) CoNiCrAlY coatings were manufactured by vacuum plasma spraying (VPS). Feedstock materials were ball-milled powders with 2, 10 and 30 wt% Al2O3 content. The ball-on-disc sliding wear behaviour of the coatings was tested at 750 °C against an Al2O3 counterpart, and compared to a pure CoNiCrAlY coating (obtained from a commercial feedstock not subjected to ball milling) and to an uncoated Ni-base superalloy.Sliding wear rates decrease from the uncoated superalloy (≈3 × 10−5 mm3/(N·m)) to the pure CoNiCrAlY coating (≈2 × 10−5 mm3/(N·m)) and to the ODS ones, with the notable exception of the 10 wt% Al2O3-containing sample.Analyses of worn samples indicate that pure CoNiCrAlY is subject to severe adhesive wear, mitigated by the formation of a thick (>1 μm) “glaze” layer via compaction and (probable) sintering of tribo-oxidized debris particles. Addition of Al2O3 particles to the CoNiCrAlY matrix can either enhance or worsen the “glaze” stability. Specifically, a coating strengthened with 30 wt% Al2O3 provides an especially good mechanical support to the “glaze”. This produces beneficial effects resulting in a particularly low wear rate of ≈3 × 10−6 mm3/(N·m). |
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| 773 | _ | _ | |a 10.1016/j.wear.2019.203116 |g p. 203116 - |0 PERI:(DE-600)1501123-9 |p 203116 |t Wear |v 444-445 |y 2020 |x 0043-1648 |
| 856 | 4 | _ | |y Published on 2019-11-08. Available in OpenAccess from 2021-11-08. |u https://juser.fz-juelich.de/record/866332/files/Post%20Referee%20Version.pdf |
| 856 | 4 | _ | |y Published on 2019-11-08. Available in OpenAccess from 2021-11-08. |x pdfa |u https://juser.fz-juelich.de/record/866332/files/Post%20Referee%20Version.pdf?subformat=pdfa |
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