Effect of variant strain accommodation on the three-dimensional microstructure formation during martensitic transformation: Application to zirconia

Mamivand, Mahmood; Zaeem, Mohsen Asle; Kadiri, Haitham El

doi:10.1016/j.actamat.2014.12.036

Cited by 42 publications

(20 citation statements)

References 70 publications

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“…This could be explained by the interchanging of a t and b t , which was distinguished by ABC-OR1 and BAC-OR1 elsewhere. 14…”

Section: Fourfold Growthmentioning

confidence: 99%

“…On the other hand, the nucleation and growth mechanisms of monoclinic variants have also been widely reported in the literature. Mamivand et al [14][15][16] simulated the formation and transformation path of the monoclinic phase with two-dimensional and three-dimensional phase field modeling and the obtained results were mainly dependent on PTMT predictions. TEM has also been used in-situ to investigate the growth of monoclinic variants.…”

Section: Introductionmentioning

confidence: 99%

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Growth modes for monoclinic yttria‐stabilized zirconia during the martensitic transformation

Wang

Gauvin

et al. 2017

J Am Ceram Soc

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The tetragonal to monoclinic martensitic transformation of plasma-sprayed 3 mol % Y 2 O 3 -ZrO 2 coatings is investigated by electron backscatter diffraction. The original metastable tetragonal phase shows an approximate "basal" texture with {001} t parallel to the coating surface. Based on the orientation analysis, plenty of monoclinic variants with atypical correspondence which indicates the c t axis transforms to the a m axis where (100) m //(001) t , (010) m , and (001) m //{110} t are clearly identified in addition to the correspondence where the c t axis transforms to the c m axis. Moreover, three growth modes are proposed and discussed according to strain accommodation. The observed sequential growth obeys the correspondence of the c t axis to the c m axis. Fourfold growth combines the correspondences of the c t axis to the c m and a m axes. The interleaving growth follows the correspondences of the c t axis to the c m axis within three tetragonal domains. These phenomena demonstrate the typical twin-related and self-accommodating configuration, which is in agreement with the phenomenological theory. These finding provide fundamental insight into the martensitic transformation mechanism and demonstrate a route for increasing the lifetime by controlling the tetragonal to monoclinic phase transformation. K E Y W O R D S electron backscatter diffraction, martensitic transformation, orientation relationship, yttria-stabilized zirconia

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“…This could be explained by the interchanging of a t and b t , which was distinguished by ABC-OR1 and BAC-OR1 elsewhere. 14…”

Section: Fourfold Growthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Growth modes for monoclinic yttria‐stabilized zirconia during the martensitic transformation

Wang

Gauvin

et al. 2017

J Am Ceram Soc

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“…In our previous work [ 47 ], some amendments have been made on the PF model proposed by Mamivand et al [ 44 , 45 , 46 ] to properly characterize the temperature dependence and grain size effect of the t–m transformation. The PF model presented in [ 47 ] is combined with the PF model for fracture in this study to study the fracture behavior of TZP.…”

Section: The Coupled Pf Model For Crack Propagation In Tzpmentioning

confidence: 99%

“…In the past decades, several PF models have been developed to characterize the phase patterns in the process of stress-induced martensitic phase transformation [ 41 , 42 , 43 ]. In particular, Mamivand et al [ 44 , 45 , 46 ] developed a PF model to characterize the phase transformation process in tetragonal zirconia, which was later extended to study the temperature effect and grain size effect on the mechanical responses of TZPs under tension and compression [ 47 ]. Sun et al [ 48 , 49 ] developed PF models to study the thermomechanical responses of shape memory alloys (SMAs).…”

Section: Introductionmentioning

confidence: 99%

Study of the Fracture Behavior of Tetragonal Zirconia Polycrystal with a Modified Phase Field Model

2020

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The superior fracture toughness of zirconia is closely correlated with stress-induced martensitic phase transformation around a crack tip. In this study, a modified phase field (PF) model coupling phase transformation and fracture is proposed to study the fracture behavior and toughening effect of tetragonal zirconia polycrystal (TZP). The stress-induced tetragonal to monoclinic (t–m) phase transformation around a static or propagating crack is characterized with PF simulations. It is shown that the finite size and shape of the transformation zone under different loads and ambient temperatures can be well predicted with the proposed PF model. The phase transformation may decrease the stress level around the crack tip, which implies the toughening effect. After that, crack propagation in TZP is studied. As the stress field is perturbed by the phase transformation patterns, the crack may experience deflection and branching in the propagation process. It is found that the toughness of the grain boundaries (GBs) has important influences on the crack propagation mode. For TZP with strong GBs, the crack is more likely to propagate transgranularly while, for TZP with weak GBs, intergranular crack propagation is prevalent. Besides that, the crystal orientation and the external load can also influence the topology of crack propagation.

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“…Such model was demonstrated to be capable of predicting the transformation zone and stress field around crack tips [30], as well as the pseudoelasticity behavior exhibits in shape memory application [31]. Following on, threedimensional phase field modelling was carried out to investigate the effect of martensitic variant strain accommodation on the microstructural formation and topological patterning in zirconia [32]. Despite the tremendous capabilities of phase field modelling in predicting microstructure evolutions at the mesoscale, it does not explicitly deal with the behavior of the individual atoms, which is essentially importance for an in-depth understanding of the physics of phase transformation in zirconia [33].…”

Section: Introductionmentioning

confidence: 99%

Competing mechanisms between dislocation and phase transformation in plastic deformation of single crystalline yttria-stabilized tetragonal zirconia nanopillars

Zhang

Zaeem

2016

Acta Materialia

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Molecular dynamics (MD) is employed to investigate the plastic deformation mechanisms of single crystalline yttria-stabilized tetragonal zirconia (YSTZ) nanopillars under uniaxial compression. Simulation results show that the nanoscale plastic deformation of YSTZ is strongly dependent on the crystallographic orientation of zirconia nanopillars. For the first time, the experimental explored tetragonal to monoclinic phase transformation is reproduced by MD simulations in some particular loading directions. Three distinct mechanisms of dislocation, phase transformation, and a combination of dislocation and phase transformation are identified when applying compressive loading along different directions. The strength of zirconia nanopillars exhibits a sensitive behavior depending on the failure mechanisms, such that the dislocation-mediated deformation leads to the lowest strength, while the phase transformationdominated deformation results in the highest strength.

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Effect of variant strain accommodation on the three-dimensional microstructure formation during martensitic transformation: Application to zirconia

Cited by 42 publications

References 70 publications

Growth modes for monoclinic yttria‐stabilized zirconia during the martensitic transformation

Growth modes for monoclinic yttria‐stabilized zirconia during the martensitic transformation

Study of the Fracture Behavior of Tetragonal Zirconia Polycrystal with a Modified Phase Field Model

Competing mechanisms between dislocation and phase transformation in plastic deformation of single crystalline yttria-stabilized tetragonal zirconia nanopillars

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