The main objective of the project is to determine up to which degree the occurrence of atomic migration allows thermally induced reversion of SIM to austenite, by taking into consideration the influences of MA’d fraction, solution treatment temperature and pre-straining upon SIM monovariant domains. In this purpose, two original aspects will be approached: (i) the relationship MA’d fraction‑SIM monovariant domain size and (ii) the interaction between PM-MA’d Fe-Mn-Si-Cr-Ni SMAs grain size/ porosity and SIM reversion to austenite. The combination of two well-known processing techniques – PM and MA – with common treatment techniques for Fe-Mn-Si-Cr-Ni SMAs – hot rolling, heat treatment, pre-straining – is meant to develop a novel manufacturing procedure for training-free Fe–Mn–Si base SMAs with improved recovery stress, prone for further extension of the applications of these alloys in other engineering areas. By considering that PM-MA processing of Fe-Mn-Si-Cr-Ni SMAs requires rather large time and material resources (25 specimens with given MA’d fraction will be produced in a single stage, for each of the first 5 research objective) and that acquiring new expensive research equipment, according to Romanian acquisition system, sometimes involves unexpected intricate delaying procedures (contestations), project’s objectives have been formulated as follows:

1. Emphasizing the reversible formation of SIM in hot rolled heat treated pre-stressed Fe-Mn-Si-Cr-Ni SMA specimens sintered from as blended powders (0_MA);

2. Emphasizing the reversible formation of SIM in hot rolled heat treated pre-stressed Fe-Mn-Si-Cr-Ni SMA specimens sintered from mixtures of as blended and 10 % MA’d powders (10_MA);

3. Emphasizing the reversible formation of SIM in hot rolled heat treated pre-stressed Fe-Mn-Si-Cr-Ni SMA specimens sintered from mixtures of as blended and 20 % MA’d powders (20_MA);

4. Emphasizing the reversible formation of SIM in hot rolled heat treated pre-stressed Fe-Mn-Si-Cr-Ni SMA specimens sintered from mixtures of as blended and 30 % MA’d powders (30_MA);

5. Emphasizing the reversible formation of SIM in hot rolled heat treated pre-stressed Fe-Mn-Si-Cr-Ni SMA specimens sintered from mixtures of as blended and 40 % MA’d powders (40_MA);

6. Study of MA effects on thermomechanical response of hot rolled heat treated Fe-Mn-Si-Cr-Ni SMA specimens by dynamic mechanical analysis (DMA);

7. Corroboration of MA effects on SIM thermally-induced reversion with atomic migration at the level of SIM monovariant domains.