Characterization of NiTiNb10.5 shape memory alloy: microstructural aspects and high-temperature oxidation behavior
Source abstract
Abstract
The influence of Niobium addition on the high-temperature oxidation behavior of NiTi shape-memory alloys was investigated. Mass-gain kinetics were determined for up to 100 h oxidation at 800, 900 and 1000 °C. Niobium addition drastically reduced the oxidation rates. The surface and cross-section of the resulting oxide layers were characterized by XRD and SEM/EDS. The presence of Nb changed the morphology, phase assemblage, and composition of the scale product, which directly influenced the observed results. The postulated reasons for the improved oxidation resistance were the Nb-doping of TiO 2 and the formation of an Nb-rich layer at the scale/alloy interface.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Shape Memory Alloy Transformations · Magnetic and transport properties of perovskites and related materials · Intermetallics and Advanced Alloy Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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