Scopus
🔓 Açık Erişim YÖKSİS Eşleşti
Dispersion mechanism-induced variations in microstructural and mechanical behavior of CNT-reinforced aluminum nanocomposites
Archives of Civil and Mechanical Engineering · Mart 2022
YÖKSİS Kayıtları
Dispersion mechanism-induced variations in microstructural and mechanical behavior of CNT-reinforced aluminum nanocomposites
Archives of Civil and Mechanical Engineering · 2022 SCI-Expanded
DOÇENT EMİN SALUR →
Dispersion mechanism-induced variations in microstructural and mechanical behavior of CNT-reinforced aluminum nanocomposites
Springer Science and Business Media LLC · 2022 SCI
PROFESÖR MUSTAFA ACARER →
Dispersion mechanism-induced variations in microstructural and mechanical behavior of CNT-reinforced aluminum nanocomposites
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING · 2022 SCI
DOKTOR ÖĞRETİM ÜYESİ HALİT SÜBÜTAY →
Dispersion mechanism-induced variations in microstructural and mechanical behavior of CNT-reinforced aluminum nanocomposites
Archives of Civil and Mechanical Engineering · 2022 SCI-Expanded
DOÇENT MUSTAFA KUNTOĞLU →
Makale Bilgileri
DergiArchives of Civil and Mechanical Engineering
Yayın TarihiMart 2022
Cilt / Sayfa22
Scopus ID2-s2.0-85123576860
Erişim🔓 Açık Erişim
Özet
The combination of powder metallurgy and ball milling method has been widely regarded as the most beneficial route for producing multi-walled carbon nanotubes (MWCNTs)-reinforced aluminum matrix composites. In this study, the effects of different milling times (1, 2, 4, and 8 h) on the structural, morphological, and crystallographic properties of MWCNTs-reinforced Al7075 composite powders were characterized by particle size analyzer, Raman spectroscopy, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), and X-ray diffraction (XRD). After the morphological and structural characterization of the milled powders, the microstructural and mechanical properties of the hot-pressed composites were evaluated using an optical microscope, SEM, density, and Brinell hardness measurements. Considering milled powder characterization, the MWCNTs were gradually distributed and embedded within the matrix as the milling time increased. Milling for 8 h resulted in a minimum level of particle size (11 µm) with shortened and uniformly dispersed CNTs. Brinell hardness of the composite increased from 91 to 237 HB -a ⁓%160 after 8 h of milling. Such a remarkable increment in hardness could be attributed to several concurrent strengthening effects related to dispersion, solution, grain refinement, and Orowan looping mechanisms. However, relative density results revealed that the composite produced by 2 h milled powders exhibited the highest density (%99.96). The observed differences between hardness and density results were ascribed to powders’ deteriorated packing and sintering behavior due to an increment in the hardness of particles and variation in particle size range and morphology, which resulted from following different milling protocols.
Yazarlar (9)
1
Kemal Doğan
2
Muhammed İhsan Özgün
3
Halit Sübütay
4
Emin Salur
5
Yasin Eker
6
Mustafa Kuntoğlu
ORCID: 0000-0002-7291-9468
7
Abdullah Aslan
8
Munish Kumar Gupta
ORCID: 0000-0002-0777-1559
9
Mustafa Acarer
Anahtar Kelimeler
Aluminum
Ball milling
Carbon nanotubes
Hot pressing
Microstructural characterization
Kurumlar
Necmettin Erbakan Üniversitesi
Meram Turkey
Opole University of Technology
Opole Poland
Selçuk Üniversitesi
Selçuklu Turkey
Metrikler
37
Atıf
9
Yazar
5
Anahtar Kelime