Generation of new functional properties of aluminum by means of heterogeneous modification of microstructure

结果表明，氢致弯曲变形是通过纯铝表面改性产生的。为了提高铝的吸氢能力，在充氢前进行了无电镀钯涂层。氢致变形与钯层厚度和吸氢量有关。除此之外，还发现当通过加热从弯曲试样中释放出吸收的氢时，试样恢复到原始的平坦形状。

It was clarified that hydrogen-induced bending deformation was generated by means of the modification of surface layer of pure aluminum. To enhance the hydrogen absorption to aluminum, electro-less palladium coating was carried out prior to the hydrogen charging. It was also shown that the hydrogen-induced deformation was dependent on the thickness of palladium layer and the amount of hydrogen absorption. In addition to this, it was found that the specimen was recovered to the original flat shape when absorbed hydrogen was evolved from the bent specimen by heating.