Comparison of thermally induced and deformation induced martensite in Fe–29% Ni–2% Mn alloy

Mössbauer and electron microscopy study of martensitic transformations in an Fe-Mn-Mo alloy

“…Therefore, the ε martensite formation is primarily observed in the alloys with low stacking fault energies [1,5,[14][15]. The formation of α′ martensite crystals has been established to be mainly associated with dislocations in prior austenite phase, and they appear as dislocated austenite areas [3,17]. Accordingly, TEM observations reveal that ε and α′ martensites are formed during quenching of the alloys used, and this result is coherent with the present SEM observations and the transformation behavior of Fe-Mn alloys [3,14,18].…”

Influence of Mo and Co on the magnetic properties and martensitic transformation characteristics of a Fe-Mn alloy

“…The models describing martensite formation were based on the assumption of over-lapping stacking faults on every second close-packed plane of the austenite phase and the transformation occurs with the movement a/6 1 1 2 Shockley partial dislocations [2,14,15,18]. The formation of the ␣ martensite crystals has been established to be mainly associated with dislocations in prior austenite phase and they appear in dislocated austenite areas [4,19]. Accordingly, TEM observations reveal that ε and˛ martensites form during quenching of the alloys, and this result is coherent with present SEM observations and the transformation behaviour of Fe-Mn alloys.…”

Influence of Mn content on the magnetic properties and microstructure in Fe–Mn–Mo alloys

“…The models describing martensite formation were based on the assumption of overlapping stacking faults on every second close-packed plane of the austenite phase and the transformation occurs with the movement a/6<1 1 2> Shockley partial dislocations [15,16]. The formation of the ␣ martensite crystals has been established to be mainly associated with dislocations in prior austenite phase and they appear dislocated austenite areas [9,19].…”