Grain size influence on fatigue behaviour in a CuZnAl PE SMA

Cocco, Vittorio Di; Iacoviello, Francesco; Carlino, Francesco; Natali, S.

doi:10.1016/j.prostr.2018.12.034

Cited by 1 publication

(1 citation statement)

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“…3). The diffractogram shows a great number of peaks just observed in previous works [8,[13][14][15] on Cu-Zn-Al SMA alloys. Almost all are those of the martensitic structures.…”

Section: Microstructural Characteristic Of Cu-zn-alsupporting

confidence: 61%

Corrosion behavior of Shape Memory Alloy in NaCl environment and recovery maintenance in Cu-Zn-Al sysytem

Brotzu

Filippo

Natali

et al. 2022

Frattura Ed Integrità Strutturale

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Shape memory effect (SME) and the relation with corrosion behavior of Cu-Zn-Al Smart Memory Alloys (SMAs) were investigated using different techniques: Scanning Electron Microscopy equipped with an Energy Dispersive System, X-Ray Diffraction analysis, Electrochemical Test in NaCl solutions with different concentrations (0.035%, 0.35% and 3.5%), which simulate coastal conditions, mechanical characterization through tensile test and guided bend test. SMAs are an important class of smart materials able to recover after deformation a pre-imposed shape through a temperature modification. These alloys show great potential, finding several applications in medicine and in different types of industry sectors (aerospace, architecture, automotive etc.). Cu-based SMAs, including Cu-Zn-Al alloys, have lower production costs with respect to Ni-Ti alloys as well as good possibility in seismic and architectural applications. A Cu-Zn-Al alloy with a theoretical composition of 25 wt.% Zn and 4 wt.% Al was produced by casting method. The aim of this study is to characterize the microstructure, the mechanical properties and the corrosion behavior through different kind of standard corrosion tests of this alloy and to evaluate the effect of corrosion damage on the shape memory recovery capability through a combination of corrosion and thermos-mechanical cyclic test and SEM observation

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“…3). The diffractogram shows a great number of peaks just observed in previous works [8,[13][14][15] on Cu-Zn-Al SMA alloys. Almost all are those of the martensitic structures.…”

Section: Microstructural Characteristic Of Cu-zn-alsupporting

confidence: 61%