1 0 0 0 OA 陰極チャージおよび浸漬試験により水素チャージしたNi-Ti超弾性合金の水素放出挙動解析
- 著者
- 小川 登志男 小田 哲郎 酒井 潤一
- 出版者
- 一般社団法人 日本機械学会
- 雑誌
- 日本機械学会論文集 (ISSN:21879761)
- 巻号頁・発行日
- vol.83, no.855, pp.17-00005-17-00005, 2017 (Released:2017-11-25)
- 参考文献数
- 20
We investigated differences in the hydrogen thermal desorption mechanism for Ni-Ti superelastic alloys following hydrogen charging by cathodic charging in a 0.9% NaCl aqueous solution and by immersion testing in a 0.2% APF aqueous solution. For the immersed specimen, the presence of corrosion products on the surface resulted in an upward shift of the hydrogen desorption peak by approximately 100 °C. When the total amount of desorbed hydrogen was almost the same for both specimens, a higher fraction was desorbed at temperatures below 200 °C for the cathodically charged specimen. Furthermore, a larger amount of hydride was formed for the cathodically charged specimen. These results indicate that the hydrogen thermal desorption mechanism depends on the presence of corrosion products on the surface and the amount of hydride formed.
1 0 0 0 OA 機械工学の面白さを伝える小学生向けものづくりコンテンツの開発
- 著者
- 伊藤 裕一 小川 登志男 田中 智基 佐藤 景一
- 出版者
- 木更津工業高等専門学校
- 雑誌
- 木更津工業高等専門学校紀要 (ISSN:2188921X)
- 巻号頁・発行日
- vol.49, pp.1-6, 2016-01-29
We have developed the creating and manufacturing contents for elementary school students to convey the attractiveness of mechanical engineering. In last year, we have developed the content related to fluid dynamics. The participants made a special model glider which was like "winged seed". In this year, we have developed the content using shape memory alloy. We demonstrated the unique properties of the shape memory alloy and then the participants made the strap of the shape memory alloy in the content.