Twinning and strain-induced F.C.C. → H.C.P. transformation in the FeMnCrC system

Strain-Induced Martensitic Trandormation in Fatigued Cast Co-Cr-Mo Alloy Used for Surgical Implants

“…Remy et al (7)(8) reported that for stacking fault energy values approximately less than IS ergs/cm 2 the fcc to hcp martensitic transformation could be induced by plastic deformation at room temperature. A higher stacking fault energy value leads to the formation of twins.…”

“…As for fcc to hep martensitic transformations, the nucleation of hcp platelets has been suggested to occur due to overlapping of stacking faults, such nuclea tlon is accelerated by the low stacking fault energy (6)(7)(8). Therefore, it has been pointed out that stacking faults In an fcc austenite play an important role in this phase transformation.…”

Control of cryogenic intergranular fracture in high-manganese austenitic steels

“…Remy and Pineau have shown that the deformation structures in Co-Ni [89] or Fe-Mn [82] alloys are temperature (and SFE) dependent. At high temperatures.…”

“…The presence of deformation twins have been previously identified in similar high-Mn austenitic alloys. especially at low deformation temperatures [82].…”

Large recovery strain in Fe-Mn-Si-based shape memory steels obtained by engineering annealing twin boundaries

“…This explains the result of Stanford et al 11 , that is, the RS increases with the rise of the SFE in Fe-29.9Mn-6Si-4.6Cr, Fe-28.4Mn-6Si-6.1Ni and Fe-33.7Mn-6Si steels. Unfortunately, the SFE must be lower than a certain threshold value to make the SIEM take place preferentially 34 . Therefore, reducing the trend to form TBs is limited by adjusting the chemical composition.…”