- Effect of heat treatment on age hardness characteristic of SiCw/Al-Li composite were systematicallyinvestigated.
- Al-Zn-Mg Alloys played an important role in the avigation and spaceflight due to their low density,high strength and preferable age hardness.
- Short mullite fiber not only increases the aged hardness of Al 4.5Cu alloy, but also accelerates the age precipitation process.
莫来石纤维除了能明显提高Al 4 .;5Cu合金的时效硬度外;还能加速其时效析出过程 ;
- Old age disabled him for hard labour.
- The results show that with the increase of deformation,the period of reaching the aging hardness peak is shortened for this material,and also the period of reaching overaging is shortened.
- The analyses of the aging hardness curve of the composites showed that the additions of Al-silicate short fibber accelerated aging and there were double hardness peaks on the hardness curve.