Fabrication of Al 20wt Si powder using scrap Si by ultra high energy milling process    
Yazarlar (5)
Won Kyung Kang
Kongju National University, Güney Kore
Prof. Dr. Fikret YILMAZ Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Hyo Seob Kim
Kongju National University, Güney Kore
Jar Myung Koo
Kongju National University, Güney Kore
Soon Jik Hong
Kongju National University, Güney Kore
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı JOURNAL OF ALLOYS AND COMPOUNDS
Dergi ISSN 0925-8388 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 09-2012
Cilt No 536
DOI Numarası 10.1016/j.jallcom.2012.01.106
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0925838812001788
Özet
In this study, microstructural evolution and mechanical properties of Al-20 wt%Si and pure Al powders fabricated by ultra high-energy ball milling technique were investigated as a function of milling time. The microstructure and mechanical properties of the as-milled powders were examined by scanning electron microscope (SEM), energy dispersive spectrometry (EDS), X-ray diffractometer (XRD) and Vickers hardness tester. SEM observation showed that the particle size increased at an early stage of milling, and then decreased drastically with further milling. XRD and cross-sectional EDS-mapping analyses revealed that Si particles were not dissolved but uniformly dispersed in the Al matrix in a milled state. Vickers hardness of both pure Al and Al-Si powder increases with milling time, which attributes to the grain size strengthening and dispersion strengthening. © 2012 Elsevier B.V. All rights reserved.
Anahtar Kelimeler
Al-20Si | Mechanical properties | Microstructure | Milling time | Ultra-high energy ball milling