| タイトル | Influence of dissolved hydrogen on aluminum-lithium alloy fracture behavior |
| 著者（英） | Swanson, R. E.; Rivet, F. C. |
| 著者所属（英） | Virginia Polytechnic Inst. and State Univ. |
| 発行日 | 1989-01-01 |
| 言語 | eng |
| 内容記述 | The objective of this work is to study the effects of dissolved hydrogen on the mechanical properties of 2090 and 2219 alloys. Prior to mechanical testing, potentiostatic and potentiodynamic tests were performed using NaCl/HCl solutions varying in pH from 1.5 to 7.5 (3.5 pct NaCl in deionized water). After analysis of the potentiodynamic curve for each solution, several potentiostatic experiments were conducted for various times (from 10 minutes to several hours) with a cathodic overpotential of 300 mV. These experiments were performed to select charging conditions. It is shown that the fracture of L-S and T-S orientations proceeds via slipping of layers in the S-T direction. The T-S and L-S orientations fractured with substantially higher propagation energy that the L-T and T-L orientations, due in large part to the extensive delamination propagation of the fracture. |
| NASA分類 | METALLIC MATERIALS |
| レポートNO | 91A43888 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/347094 |
