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Dive into the research topics where Witor Wolf is active.

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Featured researches published by Witor Wolf.


Materials Research-ibero-american Journal of Materials | 2012

The formation of quasicrystal phase in Al-Cu-Fe system by mechanical alloying

Dilermando Nagle Travessa; K.R. Cardoso; Witor Wolf; Alberto Moreira Jorge Junior; W.J. Botta

In order to obtain quasicrystalline (QC) phase by mechanical alloying (MA) in the Al-Cu-Fe system, mixtures of elementary Al, Cu and Fe in the proportion of 65-20-15 (at. %) were produced by high energy ball milling (HEBM). A very high energy type mill (spex) and short milling times (up to 5 hours) were employed. The resulting powders were characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). QC phase was not directly formed by milling under the conditions employed in this work. However, phase transformations identified by DSC analysis reveals that annealing after HEBM possibly results in the formation of the ψ QC phase.


Journal of Alloys and Compounds | 2017

Effect of Cr addition on the formation of the decagonal quasicrystalline phase of a rapidly solidified Al-Ni-Co alloy

Witor Wolf; B.O. Sitta; L.M. Martini; A.M. Jorge; C. Bolfarini; C.S. Kiminami; W.J. Botta


Materials Research-ibero-american Journal of Materials | 2016

Enhancement of Mechanical Properties of Aluminum and 2124 Aluminum Alloy by the Addition of Quasicrystalline Phases

Witor Wolf; Luis César Rodríguez Aliaga; Dilermando Nagle Travessa; Conrado Ramos Moreira Afonso; Claudemiro Bolfarini; Claudio Shyinti Kiminami; W.J. Botta


Materials Characterization | 2016

Assessment of phase constitution on the Al-rich region of rapidly solidified Al-Co-Fe-Cr alloys

Witor Wolf; C. Bolfarini; C.S. Kiminami; W.J. Botta


Surface & Coatings Technology | 2017

Structural, mechanical and thermal characterization of an Al-Co-Fe-Cr alloy for wear and thermal barrier coating applications

Witor Wolf; Robert Schulz; S. Savoie; C. Bolfarini; C.S. Kiminami; W.J. Botta


Journal of Alloys and Compounds | 2019

Effect of boron addition on the solidification sequence and microstructure of AlCoCrFeNi alloys

V. Ferrari; Witor Wolf; G. Zepon; Francisco Gil Coury; M.J. Kaufman; C. Bolfarini; C.S. Kiminami; W.J. Botta


Materials Research-ibero-american Journal of Materials | 2018

Microstructural Characterization of a Laser Surface Remelted Cu-Based Shape Memory Alloy

Murillo Romero da Silva; P. Gargarella; Witor Wolf; Tobias Gustmann; Claudio Shyinti Kiminami; S. Pauly; Juergen Eckert; Claudemiro Bolfarini


Journal of Alloys and Compounds | 2018

The formation of quasicrystals in Al-Cu-Fe-(M=Cr,Ni) melt-spun ribbons

Witor Wolf; Francisco Gil Coury; M.J. Kaufman; C. Bolfarini; C.S. Kiminami; W.J. Botta


Journal of Alloys and Compounds | 2017

Insight into the complex ternary phase behavior in Al-Mn-Ce alloys

Francisco Gil Coury; Elcio L. Pires; Witor Wolf; Fernando H. Paes de Almeida; André Luiz Vasconcellos da Costa e Silva; W.J. Botta; Claudio Shyinti Kiminami; M.J. Kaufman


Materials Characterization | 2016

急速凝固したAl‐Co Fe Cr合金のAl過剰領域の相組成の評価【Powered by NICT】

Witor Wolf; C. Bolfarini; C.S. Kiminami; W.J. Botta

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W.J. Botta

Federal University of São Carlos

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C. Bolfarini

Federal University of São Carlos

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C.S. Kiminami

Federal University of São Carlos

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Claudio Shyinti Kiminami

Federal University of São Carlos

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Claudemiro Bolfarini

Federal University of São Carlos

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M.J. Kaufman

Colorado School of Mines

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Dilermando Nagle Travessa

Federal University of São Paulo

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A.M. Jorge

Federal University of São Carlos

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