EBSD characterization of an IF steel processed by Accumulative Roll Bonding

Cruz-Gandarilla, F.; Salcedo-Garrido, Ana María; Ávalos, Martina; Bolmaro, R.E.; Baudin, Thierry; Cabañas-Moreno, J. Gerardo; Dorantes-Rosales, Héctor J.

doi:10.1088/1757-899x/82/1/012077

Cited by 7 publications

(7 citation statements)

References 5 publications

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“…The neutron sources require access to nuclear (relatively hard to reach) facilities, but provide the most representative results in terms of observed volume [ 50 ]. Electron microscopes, in image and diffraction modes, offer grain-by-grain characterizations of texture, but represent local techniques, of low statistical significance [ 51 ]. XRD analysis of textures is accessible and leads to average results from significant volumes [ 52 ].…”

Section: X-ray Diffraction and Scatteringmentioning

confidence: 99%

Ferroelectrics under the Synchrotron Light: A Review

et al. 2015

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Currently, an intensive search for high-performance lead-free ferroelectric materials is taking place. ABO3 perovskites (A = Ba, Bi, Ca, K and Na; B = Fe, Nb, Ti, and Zr) appear as promising candidates. Understanding the structure–function relationship is mandatory, and, in this field, the roles of long- and short-range crystal orders and interactions are decisive. In this review, recent advances in the global and local characterization of ferroelectric materials by synchrotron light diffraction, scattering and absorption are analyzed. Single- and poly-crystal synchrotron diffraction studies allow high-resolution investigations regarding the long-range average position of ions and subtle global symmetry break-downs. Ferroelectric materials, under the action of electric fields, undergo crystal symmetry, crystallite/domain orientation distribution and strain condition transformations. Methodological aspects of monitoring these processes are discussed. Two-dimensional diffraction clarify larger scale ordering: polycrystal texture is measured from the intensities distribution along the Debye rings. Local order is investigated by diffuse scattering (DS) and X-ray absorption fine structure (XAFS) experiments. DS provides information about thermal, chemical and displacive low-dimensional disorders. XAFS investigation of ferroelectrics reveals local B-cation off-centering and oxidation state. This technique has the advantage of being element-selective. Representative reports of the mentioned studies are described.

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Section: X-ray Diffraction and Scatteringmentioning

confidence: 99%

Ferroelectrics under the Synchrotron Light: A Review

et al. 2015

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“…Figure 6. Model fittings, (a) ECAP processed (Cu-0.2Mg [32], Pure Cu [31], AA8079 [48], Al-0.13Mg [48], AA6060 [50], pure Al [51]) ), (b) ARB processed (Armco iron [44], IF Steel [49], Trip steel [46], Stainless steel [47], AA1050 [52], Al/SiC composite [52]) and (c) HPT (AA6061 [53], Cu-0.17Zr [54], Cu-Ni-Si [55], pure Cu [45], Pure Mg [56]) processed materials. *The value of HAGB 0 was assumed to be ~90% since it was not specified in the paper, but the authors indicated a previous heat treatment before the respective SPD process.…”

Section: Discussionmentioning

confidence: 99%

“…Such behavior is coherent with the one observed for materials presented in Figure 6(a) and 6(b) from which one may perceive no significant increments in the HAGB fraction in stage II, which is also related to the fact that CDRX occurs more readily in materials with high SFE, as Gourdet et al [19] indicated in their CDRX model. On the other hand, materials like Al-0.13Mg [48], IF steel [49] and pure…”

Section: Model Validationmentioning

confidence: 99%

Prediction of Generation of High- and Low-Angle Grain Boundaries (HAGB and LAGB) During Severe Plastic Deformation

Serrano-Muñoz

Bolmaro

Jorge

et al. 2020

Metall Mater Trans A

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It is well known that a balance between the generation of low angle and high angle grain boundaries (LABG and HAGB) is achieved in materials undergoing a severe plastic deformation (SPD) process. It is also observed that most annealed materials evolve from a substantial fraction of LAGB at the early deformation steps towards a steady state in which an equilibrium between LAGB and HAGB fractions is attained. In the present work, such a balance is analyzed for different alloys, i.e., Cu, Al, and Fe based. A mathematical expression is proposed for the amount of LAGB and HAGB as a function of the strain impaired which in turn can be used to predict the number of passes (especially for ECAP) or the amount of total deformation for any SPD process necessary to attain a steady microstructure. The model seeks to serve as a first approximation of the mechanical and microstructural properties of ultrafine grain metal materials.

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“…Only few papers are concerned with steel laminated composites. When processing laminated steels, mostly interstitial-free (IF) steels, and low-carbon (LC) steels [10,[32][33][34][35][36][37][38][39] or ferritic and stainless steels [40][41][42] are used. The ferritic/stainless steel composites have the advantage of good corrosion resistance using stainless steel as outer layer materials in addition to the high weld-ability and high strength of ferritic steel [40].…”

Section: Introductionmentioning

confidence: 99%

Laminated TRIP/TWIP Steel Composites Produced by Roll Bonding

Qiu

Kaden

Schmidtchen

et al. 2019

Metals

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In order to investigate the roll bonding of high-alloy transformation induced plasticity (TRIP) and twinning induced plasticity (TWIP) steel, roll-bonded sheets of the TRIP and TWIP steel were manufactured starting from hot rolling, followed by brushing and cold rolling. Both, the microstructure and mechanical properties of the roll-bonded sheets were characterized by metallographic investigations, and tensile and T-peel tests. Preliminary results, such as an occurrence of an adhesive bonding between two TWIP steel sheets and between TRIP and TWIP steel sheet after a thickness reduction of approximately 50% were obtained. Moreover, the formation of deformation-induced martensite leads to outstanding mechanical properties of the roll-bonded composite sheet. An ultra-fine grained microstructure was observed in the bonding zone after only one roll-bonding process. The obtained promising results demonstrate the possibility of the development of an accumulative roll-bonding process for TRIP/TWIP steel composites.

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EBSD characterization of an IF steel processed by Accumulative Roll Bonding

Cited by 7 publications

References 5 publications

Ferroelectrics under the Synchrotron Light: A Review

Ferroelectrics under the Synchrotron Light: A Review

Prediction of Generation of High- and Low-Angle Grain Boundaries (HAGB and LAGB) During Severe Plastic Deformation

Laminated TRIP/TWIP Steel Composites Produced by Roll Bonding

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