Effects of Deformation on Microstructure of Cu-Zn-Ni Alloy

Çelik, Harun; Aldirmaz, Emine; Aksoy, İlhan
April 2012
Gazi University Journal of Science;2012, Vol. 25 Issue 2, p337
Academic Journal
The thermal and mechanical effects on microstructure of Cu-12.44%Zn-4.75%Ni (wt%) alloy were investigated. The effects mechanical on both rapidly cooled sample and slowly cooled sample obtained from Cu-Zn-Ni alloy were investigated by using scanning electron microscopy (SEM), X-ray diffraction techniques (XRD). The thermal energy changes of in the alloy were examined by means of differential scanning calorimetry (DSC). As a result of SEM observations, annealing twins structures are observed in rapidly and slowly cooled samples. According to pictures of the SEM and XRD, the stress applied to samples caused to lose existing annealing twins, and led to formation of slip planes lying parallel to each other in between plates. The stress-strain behaviour is associated with applied heat treatment effect to samples. It's shown that the intensities of XRD peaks to be decrease, as a result of the increase in cooling rate. This result indicates that density defects of crystal increases with rapidly cooled in the Cu-Zn-Ni alloy. In both samples of the thermal energy changes, at the process of diffusion transformation eutectoid separation reactions have been proved to exist.


Related Articles

  • Characterization of the Al3Ti phase in Al-Ti alloys. Boulkhessaim, Salim; Souilah, Yamina; Bedboudi, Hayette; Bourbia, Amel; Draissia, Mohamed // European Physical Journal - Applied Physics;Apr2013, Vol. 62 Issue 1, p00 

    The crystallographic microstructure properties of Al-Ti alloys rapidly solidified by a vacuum melting process were investigated by XRD, SEM, optical observations and DSC analysis. It was found that the microstructures are polycrystalline fine-grained (typically 10—20 µm) of...

  • Microstructure, Thermal and Wetting Properties of Sn-Bi-Zn Lead-Free Solder. Chen, Xu; Xue, Feng; Zhou, Jian; Liu, Sidong; Qian, Guotong // Journal of Electronic Materials;Aug2013, Vol. 42 Issue 8, p2708 

    The microstructures, phase transformations, and wettability of Sn-Bi-Zn solder alloys were investigated by scanning electron microscopy, x-ray diffraction, and differential scanning calorimetry (DSC). The results show that the alloys are composed of primary Sn-rich phase or Zn-rich phase, (Sn +...

  • Copper Influence On The Melting Point Of Sn - Bi Alloy. Issa, Tarik T.; Mohummed Noori, Farah T. // AIP Conference Proceedings;Dec2013, Vol. 1569 Issue 1, p351 

    The influence of adding copper to the low melting point soldering alloy of a composition Sn -Bi has been studied by Differential Scanning Calorimetric (DSC), to detect the melting point of the alloy after adding different weight percent of copper. The produced alloys were analyzed by XRD and...

  • DSC study of recrystallization in wiredrawn industrial copper. Lahcene Fellah; Zakaria Boumerzoug // Advanced Materials Research;2014, Vol. 997, p646 

    The goal of this work is to investigate the recrystallization reaction in cold wiredrawn industrial copper. We have used a differential scanning calorimetry and X-ray Diffraction techniques. The stored and apparent activation energies have been determined by differential scanning calorimetry...

  • CoMnLaFe O Magnetic Particles: Preparation and Kinetics Research of Thermal Transformationof the Precursor. Huang, Jinwen; Su, Peng; Wu, Wenwei; Liu, Bang // Journal of Superconductivity & Novel Magnetism;Oct2014, Vol. 27 Issue 10, p2317 

    CoMnLaFeO precursor was synthesized by solid-state reaction at low temperatures using CoSO â‹…7HO, MnSO â‹…HO, FeSO â‹…7HO, La(NO ) â‹…6HO, and Na CO â‹…10HO as raw materials. CoMnLaFeO was obtained by calcining carbonates precursor in air. The precursor and its calcined...

  • Thermal stability up to 800 °C of a Ni-4 wt% Al nanocomposite. Zheng, L.; Peng, X.; Wang, F. // Journal of Materials Science;Nov2012, Vol. 47 Issue 22, p7759 

    The thermal stability up to 800 °C of a nanocrystalline (NC) Ni (mean grain size ~25 nm) with ~4 wt% Al dispersed in the form of ~160-nm-sized particles, which was fabricated by co-electrodeposition from a nickel sulfate bath, has been investigated using differential scanning calorimetry...

  • New observations on formation of thermally induced martensite in Fe-30%Ni-1%Pd alloy. YILDIZ, GOKCEN; YILDIZ, YASIN; NEZIR, SAFFET // Bulletin of Materials Science;Feb2013, Vol. 36 Issue 1, p93 

    Kinetical, morphological, crystallographical and thermal characteristics of thermally induced martensite in an Fe-30%Ni-1%Pd alloy has been studied by scanning electron microscopy (SEM), transmission electron microscopy (TEM), differential scanning calorimetry (DSC) and X-ray diffraction method....

  • Formulation and characterization of floating microspheres of perindopril erbumine. Abdul Hasan Sathali, A.; Kathiravan, S. // Journal of Pharmacy Research;2012, Vol. 5 Issue 4, p1862 

    The objective of this study was to prepare floating (Gastro retentive drug delivery system) microspheres of perindopril erbumine since it is having narrow absorption window in the gastro intestinal tract (GIT). Floating microspheres were prepared by double emulsion solvent diffusion method...

  • Structural Analysis of Ce Doped La1-xSrxCo1-yFeyO3-δ Nanopowders Synthesized by Glycine-Nitrate Gel Combustion. YILDIZ, Ö.; SOYDAN, A. M.; ATA, A.; İPÇIZADE, E. F.; AKIN, D.; UÇAK, Ö. // Acta Physica Polonica, A.;Feb2014, Vol. 125 Issue 2, p669 

    Ce doped La1-xSrxCo1-yFeyO3 (LCSCF) is a widely used cathode material due to its high catalytic activity for oxygen reduction and high oxygen exchange coeficient. LCSCF is also known with its high ionic and electronic conductivities and low electrode polarization losses which are highly critical...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics