Thanks to their functional properties, NiTi and NiTi-based shape memory alloys (SMAs) exhibit both pseudo-elastic and intrinsic damping ability finding applications in several fields. The use of these alloys in damping devices or systems allows the attenuation of different kinds of vibration such as noise or more intense oscillations. In this work, the damping behaviour of different NiTi semifinished products has been evaluated by means of dynamic thermomechanical measurements in order to have a preliminary indication for the integration of these SMA elements in damper demonstrators. The evolution of the internal friction parameter with respect to temperature, frequency and strain extent is evaluated. Moreover, some possible demonstrators’ concepts, i.e. a cladding panel, some dampers and a shock absorber, are proposed and characterized. The investigated SMA elements are a plain-woven mesh made of NiTi and steel thin wires, wave-shaped NiTi ribbons and NiTi single-turn wave springs. The elements have been thermally treated in order to achieve the required shapes and thermomechanical conditions. The perspectives and potential of these semifinished products in the field of damper devices are investigated by a preliminary characterization and discussed.

由于其功能特性，NiTi 和 NiTi 基形状记忆合金 (SMA) 表现出伪弹性和固有阻尼能力，在多个领域中得到应用。在阻尼装置或系统中使用这些合金可以衰减不同种类的振动，例如噪音或更强烈的振动。在这项工作中，通过动态热机械测量评估了不同 NiTi 半成品的阻尼行为，以便为将这些 SMA 元件集成到阻尼器演示器中提供初步指示。评估内摩擦参数相对于温度、频率和应变程度的演变。此外，还提出并描述了一些可能的演示者的概念，即覆层板、一些阻尼器和减震器。研究的 SMA 元件是由 NiTi 和钢细线、波形 NiTi 带和 NiTi 单圈波形弹簧制成的平纹编织网。元件已经过热处理，以达到所需的形状和热机械条件。通过初步表征和讨论，研究了这些半成品在阻尼装置领域的前景和潜力。