研究論文
6061および7075アルミニウム合金の水素放出挙動に及ぼす高ひずみ速度変形の影響
2016 年 66 巻 2 号 p. 90-95
詳細
2016 年 66 巻 2 号 p. 90-95
Hydrogen desorption behavior in 6061 and 7075 aluminum alloys was studied by means of thermal desorption analysis using a semiconductor hydrogen sensor in the gas chromatograph. Effect of high strain rate deformation (105 s−1) on the hydrogen trapping state in the alloys was examined in particular. It was found that hydrogen atoms were released at lower temperatures when both alloys were plastically deformed. The tendency was more obvious in the 6061 alloys deformed with a high strain rate. In comparison with the previous reports, the difference of the hydrogen desorption behavior in the case between high speed and low speed deformation would be related to the difference of the hydrogen trapping effects by the different type of lattice defects.
