A shape-memory alloy (SMA) is an alloy that "remembers" its original shape and that when deformed returns to its pre-deformed shape when heated. This material is a lightweight, solid-state alternative to conventional actuators such as hydraulic, pneumatic, and motor-based systems.
There is growing interest from academia and industry in high-temperature shape memory alloys (HTSMAs), as these represent an important field both from a basic science and an application point of view. A wide range of these HTSMAs exists and can be categorized in three groups based on their martensitic transformation temperatures: group I, transformation temperatures in the range of 100-400°C; group II, in the range of 400-700°C; and group III, above 700°C. In addition to the high transformation temperatures, potential high temperature shape memory alloys must also exhibit acceptable recoverable transformation strain levels, long term stability, resistance to plastic deformation and creep, and adequate environmental resistance.
Recent literature demonstrates that substantial progress has been made since 2015 in the field devoted to HTSMAs. In fact, some of the materials developed lately are already very attractive in terms of microstructural stability, reversible transformation strain and price of the constituents. Yet, the field is still rapidly evolving and the impact of new concepts such as high entropy alloys is not even clear yet.
There is need to bring together the leading experts in order to advance the field and to bridge the gap „From Basics to Applications“. The 2nd Conference on High Temperature Shape Memory Alloys, which will be held from 15th - 18th May 2018 in Irsee (Germany) will provide a setting for all those interested in basic aspects and applications of high temperature shape alloys. The conference is expected to shed new light on the different aspects of the processing-microstructure-property relationships, characterization, testing, and modelling and last but not least on applications of high temperature shape memory alloys.
The topics of the conference will include:
• Constitution and Alloy Development
• Characterization and Testing
• Functional and Structural Degradation