2008
DOI: 10.1016/j.jallcom.2007.04.025
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Twin boundary structure of the modulated variants in a Ni–Mn–Ga alloy

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Cited by 12 publications
(6 citation statements)
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“…They suggested that some rearrangements can reduce the misfit, but still the incompatible twin boundary is expected to have an unfavourable high energy -in agreement with the consideration in Chapter 8. Han et al [51,52] examined mesoscopic twin boundaries by TEM. Though they describe these boundaries as rather flat on the nanometer scale, the micrographs reveal fringes with a thickness of up to several nanometres.…”
Section: Mobility Of Mesoscopic Of Twin Boundariesmentioning
confidence: 99%
“…They suggested that some rearrangements can reduce the misfit, but still the incompatible twin boundary is expected to have an unfavourable high energy -in agreement with the consideration in Chapter 8. Han et al [51,52] examined mesoscopic twin boundaries by TEM. Though they describe these boundaries as rather flat on the nanometer scale, the micrographs reveal fringes with a thickness of up to several nanometres.…”
Section: Mobility Of Mesoscopic Of Twin Boundariesmentioning
confidence: 99%
“…The pre-deformation is mediated by the detwinning mechanism, operational during the training process often applied to harvest a single variant martensite state and conducted by a sequence of uniaxial compression tests along the \001[ directions referred to the austenite phase [12,13]. The initial self-accommodated microstructure as well as the detwinning process has been elucidated in more detail for magnetic Ni-Mn-Ga alloys, while considerably less attention has been called in this regard to Ni-Mn-(Sn, In, Sb) alloys [14][15][16][17][18][19][20][21][22][23]. More recently, attempts to study variant organisation and mechanical detwinning have been performed for Ni 50 Mn 38 Sn 12 [24] and Ni 2 Mn 1.44 In 0.56 polycrystalline alloys [25], which were found to contain no nanotwins inside larger, misoriented plates.…”
Section: Introductionmentioning
confidence: 99%
“…Though the martensite structure is controlled to a large extent by the composition, there are compositions around 29-30 at.-% Mn and 20-21 at.-% Ga, for which multiple martensite structures were reported [6,7]. Due to the monoclinic lattice, a variety of twinning modes operate in both 10M and 14M martensites [8,9]. The magnetic-field-induced strain (MFIS) strongly depends on the twin microstructure which can be modified through appropriate training (e.g., [10]).…”
Section: Introductionmentioning
confidence: 99%