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Title: 放電プラズマ焼結された過共晶Al-Si合金の微細空孔形成と機械的性質
Other Titles: Micro-pore formation and mechanical properties in a hyper-eutectic Al-Si alloy fabricated by spark plasma sintering
Authors: 黒石, 農士1 Browse this author
工藤, 昌行2 Browse this author
松浦, 清隆3 Browse this author →KAKEN DB
Authors(alt): Kuroishi, Nobuhito1
Kudoh, Masayuki2
Matsuura, Kiyotaka3
Keywords: rapidly solidified powder
spark plasma sintering
Si particle size
Issue Date: Mar-2006
Publisher: 軽金属学会
Journal Title: 軽金属
Journal Title(alt): Journal of Japan Institute of Light Metals
Volume: 56
Issue: 3
Start Page: 150
End Page: 155
Publisher DOI: 10.2464/jilm.56.150
Abstract: The samples were fabricated with various conditions in spark plasma sintering (SPS) by using a rapidly solidified powder of a hypereutectic Al-16%Si alloy. Micro-pores and Si particles were investigated metallographically, and density and Vickers hardness were estimated. As a result, micro-pores were randomly distributed in the sample preheated under a pressure before SPS but they were distributed like network along powder particles after a higher electric current application of SPS. The density decreased as electric current of SPS increased. The size and volume fraction of Si particle increased, while Vickers hardness decreased as the electric current of SPS increased. A part of the decrease in hardness is considered to be caused by particle dispersion hardening mechanism.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 松浦 清隆

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