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j.surfcoat.2017.06.064.pdf | 1.07 MB | Adobe PDF | 見る/開く |
タイトル: | Evaluation of the hardness and Young's modulus of electrodeposited Al–W alloy films by nano-indentation |
著者: | Higashino, Shota Miyake, Masao https://orcid.org/0000-0001-8208-4030 (unconfirmed) Takahashi, Ayumu Matamura, Yuya Fujii, Hisashi Kasada, Ryuta Hirato, Tetsuji https://orcid.org/0000-0003-3030-1632 (unconfirmed) |
著者名の別形: | 東野, 昭太 三宅, 正男 高橋, 歩 股村, 雄也 藤井, 久史 笠田, 竜太 平藤, 哲司 |
キーワード: | Electroplating Ionic liquid Nano-indentation Amorphous alloy Aluminum Tungsten |
発行日: | 25-Sep-2017 |
出版者: | Elsevier B.V. |
誌名: | Surface and Coatings Technology |
巻: | 325 |
開始ページ: | 346 |
終了ページ: | 351 |
抄録: | Al–W alloy films with various W contents up to ~ 12 at.% were prepared by electrodeposition using 1-ethyl-3-methylimidazolium chloride (EMIC)–AlCl₃ ionic liquids with different concentrations of W precursor, W₆Cl₁₂. The hardness (H) and Young's modulus (E) of the films were examined by nano-indentation. The films were composed of a single-phase fcc Al super-saturated solid solution, an amorphous phase, or both, depending on the W content and the deposition conditions. The H value increased with increasing W content up to 9.8 at.% and then decreased slightly with further increases in the W content up to 12.4 at.%. A similar trend was observed in the E value with increasing W content, but the decrease in E value at 12.4 at.% W was more significant than that in H value. The changes in the H and E values are discussed from the viewpoints of the grain size and the constituent phases. The 9.8–12.4 at.% W films, which had relatively high H values and H/E ratios, are expected to have a higher resistance to mechanical damage than Al films. |
著作権等: | © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The full-text file will be made open to the public on 25 September 2019 in accordance with publisher's 'Terms and Conditions for Self-Archiving' This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/237632 |
DOI(出版社版): | 10.1016/j.surfcoat.2017.06.064 |
出現コレクション: | 学術雑誌掲載論文等 |
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