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J. Jpn Inst. Metal 56(8) 943.pdf1.22 MBPDFView/Open
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Title: 擬2成分系金属間化合物Co3Ti·Ni3Al単結晶の塑性変形挙動
Other Titles: Plastic Deformation Behavior in Pseudo-Binary Compound Ni3Al·Co3Ti Single Crystals
Authors: 三浦, 誠司1 Browse this author →KAKEN DB
栗山, 春宣2 Browse this author
三島, 良直3 Browse this author
鈴木, 朝夫4 Browse this author
Authors(alt): Miura, Seiji1
Kuriyama, Haruyoshi2
Mishima, Yoshinao3
Suzuki, Tomoo4
Keywords: Co3Ti
pseudo-binary compound
single crystal
mechanical property
Issue Date: 1-Aug-1992
Publisher: 日本金属学会
Journal Title: 日本金属学会誌
Journal Title(alt): Journal of the Japan Institute of Metals
Volume: 56
Issue: 8
Start Page: 943
End Page: 951
Publisher DOI: 10.2320/jinstmet1952.56.8_943
Abstract: Single crystalline Co3Ti base quarternary compounds, (Co, Ni)3(Ti, Al), are prepared and the effects of temperature, strain rate and orientation on the plastic behavior are investigated. Then the results are compared to other L12 intermetallic compounds being represented by Ni3Al. The differences found by the comparison are as follows. (1) Regardless of the crystallographic orientation with respect to the stress axis, there is a strong negative temperature dependence of strength at low temperature regime. (2) Plastic deformation is accompanied by serration on the stress strain curve and by metallic acoustic emission in the single crystals with near-[111] orientation and at temperature regime between 77 to 973 K where the anomalous positive temperature dependence of strength is observed. (3) For the same orientations, the temperature regime where cube slip governs the plastic deformation is narrow. (4) Octahedral viscous flow at the high temperature regime is not associated with well-defined yield drop. It is to be noted that the plastic behavior of Co3Ti base single crystals should also be discussed seperately in the above four regimes as has been done in other single crystalline L12 compounds.
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: 三浦 誠司

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