physica status solidi (a) / Effect of Chromium and Molybdenum Increment on the Crystal Structure, Nanoindentation, and Corrosion Properties of Cobalt-Based Alloys
John Wiley & Sons, Ltd, 2022
Online
academicJournal
Zugriff:
This study investigates the influence of chromium and molybdenum content (Cr: 20–35 wt%; Mo: 5 and 10 wt%) in a cobalt–chromium–molybdenum alloy system on the phases present in the microstructure, the nanomechanical, and electrochemical behavior of the alloys. A linear increase in the hardness is found in relation to the increasing chromium content for both 5 and 10 wt% Mo contents, whereas reduced modulus demonstrates an inflection at 30 wt% Cr, which is influenced by the molybdenum content. The open-circuit potential, polarization resistivity, and linear sweep voltammetry disclose that passivity of Co–Cr–Mo alloys improves in line with increasing Cr until 30 wt%, with any further increase causing a depreciation in the corrosion properties. X-Ray diffraction and optical metallographic analysis confirm that as the chromium content transitions through the 25–30 wt% range, the sigma (σ) phase begins to develop within the combined matrix of hexagonal close pack martensite (ε) and face-centered cubic austenite (γ) phase ; Version of record
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physica status solidi (a) / Effect of Chromium and Molybdenum Increment on the Crystal Structure, Nanoindentation, and Corrosion Properties of Cobalt-Based Alloys
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Autor/in / Beteiligte Person: | Hassel, Achim Walter ; Lone, Shaukat Ali ; Cook, Richard Barker ; Xu, Dichu |
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Veröffentlichung: | John Wiley & Sons, Ltd, 2022 |
Medientyp: | academicJournal |
ISSN: | 1862-6300 (print) |
DOI: | 10.1002/pssa.202200373 |
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