Year 2020, Volume 23 , Issue 1, Pages 161 - 169 2020-03-01

The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method
The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method

İbrahim BİLİZ [1] , Adem BAKKALOĞLU [2] , Musa KILIÇ [3]


This paper deals with the investigation of microstructure and porosity of layered compounds of NiAl(Co/Cr) powders by SHS method. Layers of 50% Ni-50% Al powders were mixed with 3%, 6% and 10% of Co and Cr powders. These were mixed for 12 hours in a rotational container with a speed of 300 rpm. Mixed powders were cold compressed in a mould with pressures of 50, 100 and 200 MPa. The obtained samples were then synthesized in an argon controlled atmosphere with and without preheating to 250 oC. The microstructure of synthesized samples was analysed using SEM-BSE, EDS and XRD. The EDS results showed that the samples were containing Ni in majority along with Al, Co, and Cr. To determine the phase components, XRD spectra was analysed and the peaks of NiAl, Ni3Al, and NiAl3 were confirmed with NiAl having the highest peak intensity. The density calculations showed that the ratio of pores was affected the most from pressure. The main reason for this was attributed to the better contact of the powders under higher pressure which helped an uninterrupted reaction. The highest pore ratio values were obtained from samples produced under 50 MPa pressure.

This paper deals with the investigation of microstructure and porosity of layered compounds of NiAl(Co/Cr) powders by SHS method. Layers of 50% Ni-50% Al powders were mixed with 3%, 6% and 10% of Co and Cr powders. These were mixed for 12 hours in a rotational container with a speed of 300 rpm. Mixed powders were cold compressed in a mould with pressures of 50, 100 and 200 MPa. The obtained samples were then synthesized in an argon controlled atmosphere with and without preheating to 250 oC. The microstructure of synthesized samples was analysed using SEM-BSE, EDS and XRD. The EDS results showed that the samples were containing Ni in majority along with Al, Co, and Cr. To determine the phase components, XRD spectra was analysed and the peaks of NiAl, Ni3Al, and NiAl3 were confirmed with NiAl having the highest peak intensity. The density calculations showed that the ratio of pores was affected the most from pressure. The main reason for this was attributed to the better contact of the powders under higher pressure which helped an uninterrupted reaction. The highest pore ratio values were obtained from samples produced under 50 MPa pressure.
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Primary Language en
Subjects Engineering
Journal Section Research Article
Authors

Orcid: 0000-0002-9090-4905
Author: İbrahim BİLİZ (Primary Author)
Country: Turkey


Orcid: 0000-0002-7148-2567
Author: Adem BAKKALOĞLU

Orcid: 0000-0001-5808-6917
Author: Musa KILIÇ

Dates

Publication Date : March 1, 2020

Bibtex @research article { politeknik557592, journal = {Politeknik Dergisi}, issn = {}, eissn = {2147-9429}, address = {Gazi Üniversitesi Teknoloji Fakültesi 06500 Teknikokullar - ANKARA}, publisher = {Gazi University}, year = {2020}, volume = {23}, pages = {161 - 169}, doi = {10.2339/politeknik.557592}, title = {The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method}, key = {cite}, author = {BİLİZ, İbrahim and BAKKALOĞLU, Adem and KILIÇ, Musa} }
APA BİLİZ, İ , BAKKALOĞLU, A , KILIÇ, M . (2020). The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method. Politeknik Dergisi , 23 (1) , 161-169 . DOI: 10.2339/politeknik.557592
MLA BİLİZ, İ , BAKKALOĞLU, A , KILIÇ, M . "The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method". Politeknik Dergisi 23 (2020 ): 161-169 <https://dergipark.org.tr/en/pub/politeknik/issue/51707/557592>
Chicago BİLİZ, İ , BAKKALOĞLU, A , KILIÇ, M . "The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method". Politeknik Dergisi 23 (2020 ): 161-169
RIS TY - JOUR T1 - The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method AU - İbrahim BİLİZ , Adem BAKKALOĞLU , Musa KILIÇ Y1 - 2020 PY - 2020 N1 - doi: 10.2339/politeknik.557592 DO - 10.2339/politeknik.557592 T2 - Politeknik Dergisi JF - Journal JO - JOR SP - 161 EP - 169 VL - 23 IS - 1 SN - -2147-9429 M3 - doi: 10.2339/politeknik.557592 UR - https://doi.org/10.2339/politeknik.557592 Y2 - 2019 ER -
EndNote %0 Politeknik Dergisi The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method %A İbrahim BİLİZ , Adem BAKKALOĞLU , Musa KILIÇ %T The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method %D 2020 %J Politeknik Dergisi %P -2147-9429 %V 23 %N 1 %R doi: 10.2339/politeknik.557592 %U 10.2339/politeknik.557592
ISNAD BİLİZ, İbrahim , BAKKALOĞLU, Adem , KILIÇ, Musa . "The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method". Politeknik Dergisi 23 / 1 (March 2020): 161-169 . https://doi.org/10.2339/politeknik.557592
AMA BİLİZ İ , BAKKALOĞLU A , KILIÇ M . The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method. Politeknik Dergisi. 2020; 23(1): 161-169.
Vancouver BİLİZ İ , BAKKALOĞLU A , KILIÇ M . The Effect of Process Parameters on Microstructure and Porosity of Layered NiAl(Co/Cr) Alloy Produced by SHS Method. Politeknik Dergisi. 2020; 23(1): 169-161.